REPORT TO THE AAPM RADIATION THERAPY COMMITTEE
Report No. 117
PERSONNEL
There have been no changes in key personnel since the
previous report.
GRANT ACTIVITIES
We are presently in the final year of the current five year
grant cycle. Our application for competing renewal was
submitted to NCI in advance of the revised deadline of
February 15, 2004. A mock site visit is being scheduled for
May or June, and the NCI Site Visit is expected to be held
July 6-7, 2004.
The Advanced Technology for Radiation Therapy Grant to
Washington University in St. Louis continues and is now in
its fifth year. The RPC is a subcontractor to this grant.
Meetings of ATC subcontractors have been held by
telephone conference call approximately monthly. A
meeting of the ATC subcontractors is being held in
conjunction with a meeting of the ATC Steering Committee
on March 30-31 at the COG meeting.
The COMS subcontract continues at a very low funding
level. The study group is finishing up its activities, and held
its final technical meetings in September. Remaining work
is focusing on a few final publications of the results of the
trial.
BUDGET STATUS
Recent salary increases resulting from staff promotions and
equity adjustments mandated by M. D. Anderson, together
with an unexpected increase in our rent have pushed our
budget into the red. We do not yet have the notification of
award from NCI, but expect to be forced to request some
assistance from the Division of Radiation Oncology to make
it through the current year.
COMMUNICATIONS
The RPC web page continues to be expanded and made
more functional. Major changes are in development that
will take advantage of industry standard functionality, but
also will require conformation with MDACC templates.
We have continued to post regular newsletters, and benefit
from an agreement with AAPM, which distributes an email
burst each month to announce the available of the latest
newsletter.
October 1, 2003 - February 29, 2004
At the annual meeting, the AAPM granted approval to
provide us with email addresses of physicists at institutions
participating in clinical trials. This will enable us to contact
institutions electronically to update our records regarding an
institution’s treatment equipment, beam energies, and
contact information.
We also continue to maintain the AAPM/RPC registry of
brachytherapy seeds meeting the AAPM prerequisites. The
policies and procedures governing the registry are under
review and will be revised soon.
GENERAL QA ACTIVITIES
On-Site Dosimetry Review
The RPC is presently monitoring 1,340 megavoltage
therapy sites. During the past four years (2000-2003) we
made visits to 109 institutions. The number of beams
measured is shown in Table I, as is the number of
institutions at which the reference calibration of one or more
beams exceeded the RPC’s 3% criterion. The number of
institutions is shown at which the combination of dosimetry
parameters could result in a dose disagreement of more than
5%.
Table I: Visits made, beams measured, and discrepancies
detected during the past four years.
Institutions Visited
Beams measured
{
Beam calibrations
(outside ± 3%)
No. of Inst. with > 1
beam outside 3%
criterion
Tumor dose delivery
outside 5%
Total number of
recommendations
{
Photon
Electron
Photon
Electron
2000
20
99
200
2
19
2001
24
89
193
0
27
2002
40
175
354
3
21
2003
25
126
248
2
22
6
(30%)
8
(33%)
17
(43%)
7
(28%)
13
(65%)
4
(17%)
12
(30%)
6
(24%)
88
83
161
88
The RPC visits yield consistent data sets for many
combinations of beam quality and machine model. The
database includes 5 or more consistent data sets for 82
photon beams from 48 makes and models of accelerators.
Reviews of these data suggest that machines of the same
make, model and energy have very similar characteristics
(standard deviations of 1%). The RPC has identified
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Page 2 of 15
“standard data” (field size dependence, depth dose and offaxis factors) for the majority of the 82 photon beams. The
database has been “mined” on a number of occasions to
enable the RPC to characterize parameters that are
consistent from one machine to another. For example, as
shown in Figure 1, RPC data show the consistency of
electron beam depth dose parameters among accelerators of
identical make and model. (Followill, 2004).
10
Nominal
17-18 MeV
9
8
d50
Nominal
15-16 MeV
7
Depth (cm)
Nominal
20-22 MeV
Nominal
12-14 MeV
6
5
d80
Nominal
8-11 MeV
4
Nominal
5-7 MeV
3
dmax
2
1
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
R50, Electron Beam Quality (cm)
Figure 1: Relationship between electron beam energy and
depth dose parameters.
Remote Audit Tools
TLD are now mailed on an annual cycle. This represents a
relatively small change for most institutions; in the past,
TLD were mailed to an institution six months after receipt
of the previous TLD. However, because many institutions
delay irradiating and returning the TLD for from three to
four months, the average cycle time was approximately 10
months. Three electron beams are monitored with each TLD
shipment, so that all electron energies are monitored
biennially. Figure 2 illustrates the volume of TLD mailed
over the last 20 years. The dip in the graph during 20002001 reflects a disruption in activities caused by office airquality problems leading to the RPC’s move to new offices.
remains at 5%, but our new procedures now provide for a
correction in the event that the institution uses the outdated
AAPM TG-21 calibration protocol or calibrates in terms of
dose to water rather than dose to muscle. Institutions receive
a follow up telephone call and repeat TLD if they fall
outside the 5% criterion based on either the RPC’s method
of calculation or the institution’s own method of calculation.
In addition, the RPC investigates TLD that indicate a depth
dose error exceeding 5 mm for electron beams. A recent
review of our records indicated that approximately 5% of
returned TLD fall outside criteria for acceptability.
However, these erroneous results are distributed across
institutions so that during the past year, 15% of institutions
returned TLD that were outside criteria for a least one beam.
In most cases, repeat TLD fall within criteria, but during the
past year 8 institutions were visited due to unresolved TLD
problems. See Figure 3 for a graph of TLD outside criteria
by year, and institutions that had at least one beam
exhibiting a calibration discrepancy exceeding 5%. The
recent increase in number of institutions with one or more
discrepancies may correspond with the introduction of the
TG-51 calibration protocol.
A new, aggressive program of follow-up to retrieve nonreturned TLD has been implemented. As a result, a number
of TLD shipments previously believed lost have been
retrieved. Institutions that do not respond promptly to our
request for return of the TLD are now identified in the semiannual reports provided to the study groups. Several study
groups have indicated their intention to drop from their
membership institutions that are consistently recalcitrant in
responding to our requests for participation in the RPC’s
QA programs.
Figure 3. Frequency of TLD readings outside criteria, and
fraction of institutions having at least one TLD reading out
of criteria.
Figure C.4: The volume of mailed TLD since 1984.
As of the end of January, 637 institutions have reported that
they have converted to the TG-51 protocol; this is roughly
50% of the U.S. institutions we monitor. The rate of
conversion has been steady for the last several years as
shown in the graph.
The RPC has taken further steps to ensure that institutions
whose TLD reveal suspected calibration errors receive
repeat TLD promptly. The RPC’s criterion for agreement
STUDY GROUP ACTIVITIES
The RPC continues to send one or more representatives to
meetings of every cancer trials study group. We are most
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RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Page 3 of 15
heavily involved with NSABP, NCCTG, COMS, GOG, and
RTOG. Through coordinated activities with QARC, we are
actively involved in reviewing protocols or credentialing
activities at several other study groups. In addition, we
participate in the QA Committee of ACRIN, the ACR
Imaging Network. We participate in the Cancer Trials
Support Unit (CTSU), to insure that institutions that
participate in clinical trials through CTSU are properly
monitored and credentialed when necessary. At least one
study group, NCCTG, will soon require all patients to be
registered for protocols through CTSU.
The RPC now participates with the RTOG in a program of
assessing institutions’ compliance with protocols as an
alternative to pre-submission credentialing. The RPC
reviews the first two cases submitted by the institution for
both HDR and LDR brachytherapy, and evaluates their
compliance with the protocol as well as the dosimetric
accuracy of the treatment plans. Failure to meet objective
criteria agreed upon with the RTOG requires that the
institution submit additional plans until agreement is
reached. Sixteen institutions have completed this assessment
to date.
As was mentioned above, the RPC is a collaborator in the
Advanced Technology Consortium (ATC), which supports
and monitors the QA of advanced technology clinical trials.
The RPC, together with QARC and the RTOG Headquarters
dosimetry group, is responsible for direct contact with the
study groups, while the ITC and RCET develop and
maintain the facilities and infrastructure for electronic data
exchange, storage, and review.
The RPC has placed all information regarding credentialing
for clinical trials on the RPC webpage, conveniently
grouped under a heading labeled “credentialing”.
Institutions interested in obtaining credentialing information
simply select the study group, then the specific protocol, to
download instructions and questionnaires.
Radiation Therapy Oncology Group
1.
Brachytherapy credentialing
The RPC has sent this phantom to 67 institutions to date.
Another 115 institutions interested in monitoring their own
SRS programs have received the phantom from Radiation
Dosimetry Services (RDS).
The RPC has contributed to the quality assurance of four
prostate brachytherapy trials, NCCTG N-0052, RTOG 9805, P-0019, and P-0232. The credentialing mechanism has
been comparable from one trial to the next; institutions must
submit a facility inventory questionnaire, a knowledge
assessment questionnaire, a recent clinical case done
approximately to protocol specifications, calculations
around a single source, and calculations of a geometric
implant
distribution.
The
knowledge
assessment
questionnaire has been shown to be a valuable tool in
assessing the facility’s familiarity with the protocol and
helping to assure that the facility is aware of the
requirements of the protocol. The clinical case is evaluated
by a radiation oncologist collaborating with the RPC, and
deficiencies in the quality of the implant are brought to the
institution’s attention. Approximately 32% of submissions
fail to meet the clinical standards for minimum quality. The
two benchmark treatment plans are evaluated for
consistency with the most current dosimetry data for the
source used by the institution. On occasion, institutions have
been discovered to be using outdated dosimetry data or data
that are inconsistent with the current NIST standards. In at
least one case, a significant error in the algorithm used by
the institution’s treatment planning computer was detected
by the credentialing mechanism and corrected.
The P-0232 trial that opened last year requires electronic
data submission; additional credentialing is required for
institutions wishing to participate in this trial. In addition,
institutions that experience changes in their treatment
planning systems, seed model, or key personnel are
expected to be recredentialed. Presently, 21 institutions are
newly credentialed or have been recredentialed to
participate in P-0232.
D:\106741307.doc
RPC anthropomorphic phantoms
2.
Stereotactic brain phantom
Pelvis Phantom
RTOG recently amended the protocol P-0126 to allow
IMRT. Four institutions have already indicated their interest
in becoming credentialed for IMRT using the RPC Pelvic
Phantom. Therefore, three phantoms have been constructed
(in addition to the prototype). The phantoms have been
irradiated by seven institutions to date.
3.
RPC thorax phantom
In anticipation of one or more advanced technology
protocols for treatment of lung tumors, the RPC is building
three additional chest phantoms. These will be available in
the near future for credentialing institutions to participate in
these protocols. The existing thorax phantom has been
irradiated by six institutions to date.
4.
Head and Neck IMRT phantom
The RPC now has a great deal of experience with Head &
Neck IMRT Phantoms. Ten of these phantoms are now in
use; six more will be built by the MD Anderson machine
shop in the near future. The phantom has been sent to 51
institutions to date, some multiple times, for a total of 60
irradiations. The evaluation criteria proposed by RPC and
recently accepted by the RTOG Medical Physics Committee
require agreement between the TLD and the institution's
stated dose to the TLDs in the PTV to within 7%; agreement
between the institution's stated dose and the RPC's
determination of dose from radiochromic film to within 4
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Page 4 of 15
mm, in the region of high dose gradient between the primary
PTV and organ at risk.
conducted by the RPC to use tools developed by the ATC
for this purpose.
22 of the irradiations of the head and neck phantom
(roughly 1/3) failed to meet the criteria. 12 of the failures
were dose discrepancies measured with TLD, 5 were dose
distribution discrepancies measured with radiochromic film
and 5 were disagreements in both TLD and film
measurements. Failures occurred in irradiations delivered by
a variety of models of linear accelerator and planned with
several treatment planning systems (TPS). Errors detected
included inaccurate output factors in the TPS and imprecise
beam modeling through the MLC leaves. Somewhat
consistent behavior was seen among the TPSs, although no
trends were apparent among the delivery devices.
North Central Cancer Treatment Group
The RPC has implemented a significant improvement to the
H&N phantom. The steep dose gradients commonly
encountered in IMRT have prompted us to reduce the size
of the TLDs. They been replaced with TLDs having a
diameter of 2 mm, and a length of 8 mm. The new TLDs are
positioned so that they are adjacent to the radiochromic
film, on either side of the film. This arrangement will allow
us to take TLD readings closer to the radiochromic film to
improve film normalization, without sacrificing TLD
readings.
Children’s Oncology Group (COG)
The COG will require members to either perform the QARC
IMRT benchmark plan, or irradiate the RPC’s H&N
phantom, to participate in a new protocol investigating
medulloblastoma that allows both IMRT and 3D Conformal
Radiotherapy.
National Surgical Adjuvant Breast and Bowel Project
(NSABP)
The NSABP and RTOG are collaborating in a phase III
protocol that will randomize patients to conventional whole
breast irradiation or partial breast irradiation. PBI will be
delivered by 3D conformal irradiation, interstitial HDR
brachytherapy, or Mammosite®. Institutions must be
credentialed by the RPC to participate, and must submit PBI
treatment plans electronically for review. A rapid review
will be conducted of the first few plans submitted by each
institution.
Gynecological Oncology Group
The RPC reviews many charts from the GOG and
participates extensively in the semi-annual meetings at
which clinical reviews are conducted. The GOG is
investigating advanced technology radiation therapy, and
considering using one or more of our credentialing
procedures in the near future. In addition, the GOG has
expressed interest in electronic data transfer as departments
gradually become filmless, and a preliminary test has been
D:\106741307.doc
The RPC is participating in the rapid review of cases
submitted to N0028, a phase I/II study of escalating doses of
radiotherapy for non-small cell lung cancer. NCCTG is
encouraging their members to develop the capability to
submit treatment-planning information electronically. We
are using tools developed by the ATC and have successfully
demonstrated this capability with an NCCTG institution. In
addition, NCCTG has set a goal of all members completing
the RPC’s 3D Treatment Planning Benchmark (modified
slightly from a benchmark developed by QARC).
Institutions are to meet this goal by October of 2004.
Several institutions have submitted benchmark plans to date.
INTERACTIONS WITH MDACC AND AAPM
In response to recommendations from the NCI and the
AAPM, and in keeping with our own efforts to maintain the
clinical credentials of RPC medical physicists, a program of
rotation through the M. D. Anderson clinic by RPC
physicists was instituted in 2001. Departmental
reorganizations interrupted this program during 2002, but it
has been continued in 2003. The program calls for sixmonth rotations through the clinic of one RPC physicist at a
time. To assure the stability of this arrangement, a medical
physicist position was created in the physics group
associated with the GU, GYN, and breast treatment
services; this position is filled by an RPC physicist on a
rotating basis. As of this writing four RPC physicists have
completed rotations and a fifth physicist is beginning his
rotation. This program is felt to be extraordinarily
successful; each of the physicists to rotate so far reports
having an educational and informative experience, while the
clinical group indicates that the RPC physicists are making
a valuable contribution to the clinic. This program will be
continued.
We continue to participate in the Subcommittee on QA of
Clinical Trials. A Primer on physics QA is in nearly final
form, and a workshop is being planned for the spring of
2005.
NEW PROJECTS
Remote Monitoring
We have just begun to investigate aluminum oxide materials
marketed under the name Luxel® (Landauer, Inc.,
Glenwood, IL). Preliminary measurements have been made
and analysis is presently underway. The device is of interest
because statements by the manufacturer suggest the
reproducibility may be comparable to our experience with
TLD. In addition, the readout process may be faster and
simpler and may enable us to shift technical staff to rapidlyexpanding programs such as the credentialing services.
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Polymer Gel Dosimetry
Recent work performed by the RPC to evaluate polymer gel
dosimetry has been described previously. This work will be
continued and extended in the next grant cycle, to refine this
technique of displaying complex 3-D dose distributions.
Improvements to the sensitivity and stability of the gels are
under way, as are investigations of alternatives to gelatinbased dosimeters. Software has been acquired to facilitate
the comparison of measured and calculated dose
distributions specific to the RPC phantoms; this software is
presently being evaluated.
Phantoms
Several changes to existing RPC phantoms are envisioned,
to enable study groups to evaluate participating institutions
for new protocols. In preparation for GYN trials
incorporating IMRT, a new imaging insert will be
constructed for the RPC’s pelvis phantom. The existing
imaging insert simulates male anatomy while the proposed
insert will mimic female anatomical structures, including
clinical target volumes.
A variation of the RPC’s thorax phantom will contain a
liver-shaped structure, several CTVs, and structures
mimicking OARs such as kidneys, spinal cord and stomach.
The liver phantom is expected to support RTOG 0245, a
study of extra cranial stereotactic radiosurgery to liver
primary tumors and metastases. The liver phantom and the
existing thorax phantom are being equipped with a
translating table to create motion in one or two dimensions.
This mechanism will simulate respiratory motion to enable
evaluation of gating and tracking systems. The proposed
dynamic liver phantom is shown schematically in Figure 4.
19
Anterior
H2O
17
7 cm
Monte Carlo
The RPC is investigating the use of Monte Carlo
calculations to enhance the value and range of our database
of standard beam data. Several presentations have shown
that Monte Carlo can predict accurately many of they
dosimetry parameters measured by RPC physicists. We
expect that Monte Carlo calculations will supplement our
measured data or allow us to reduce the number of
measurements we make.
Proton Therapy
As more institutions install proton accelerators, we
anticipate the development of NCI-sponsored multiinstitutional clinical trials. The RPC has started an
investigation of dosimetry systems that may be suitable for
monitoring participating institutions.
Respiratory Motion
NCI has published recommendations discouraging the use
of IMRT in clinical trials for sites that are affected by
cardiac or respiratory motion. A number of institutions and
manufacturers are investigating gating and tracking
techniques to accommodate such motion. As mentioned
above, the RPC is developing a reciprocating table to
introduce motion into the imaging and treatment of one of
the existing phantoms. The RPC is also investigating the
design of a phantom to simulate respiratory motion.
Preliminary discussions have been held with a manufacturer
and with representatives of MDACC who are interested in
these issues.
PARTICIPANT FEE:
Institutions invoiced FY04
No XRT/Canceled/Inactive
Invoiced by RDS
Institutions paid
1337
84
11
816
PUBLICATIONS AND ABSTRACTS
Publications Accepted/Published (2001-2003):
9 cm
7 cm
24
Page 5 of 15
6 cm
kidney
11 cm
cord
4
Posterior
1.
Melia, Sc.M., Michele; Abramson, M.D., David;
Albert, M.D., Daniel; Boldt, M.D. Culver; Earle, M.D.,
John; Hanson, Ph.D., William; Montague, Paul; Moy,
Ph.D., Claudia; Schachat, M.D., Andrew; Simpson,
M.D., Rand; Straatsma, M.D., Bradley; Vine, M.D.,
Andrew; and Weingeist, M.D., Ph.D., Thomas:
Collaborative Ocular Melanoma Study (COMS)
Randomized Trial of I-125 Brachytherapy for Medium
Choroidal Melanoma I. Visual Acuity after 3 Years,
COMS Report No. 16”, Opthalmology, 108(2): 348366, 2001.
2.
Kim, C. -H., Reece, W. D., and Cho, S. H. Computer
simulation of radiation exposure in a S/G channel head.
Trans. Am. Nucl. Soc., 84:325-326, 2001.
3.
Kirsner, S.M., Prado, K.L., Tailor, R.C., and Bencomo,
J.A.: Verification of the accuracy of 3D calculations of
35
A. Anterior View
Superior
4 cm
OAR
28
1 cm
Inferior
B. Transverse view
Figure 4. A proposal for a phantom to mimic abdominal
structures including the liver. The liver structure is shown
by bold lines.
D:\106741307.doc
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
breast dose during tangential irradiation: measurements
in a breast phantom. Journal of Applied Clinical
Medical Physics, Volume 2, Number 3, pp. 149-156,
summer, 2001.
4.
Tailor R, Hanson W., Calculated absorbed-dose ratios,
TG-51/TG-21, for most widely used cylindrical and
parallel-plate ion chambers over a range of photon and
electron energies, Medical Physics 29:1464-1472, 2002.
5.
Gifford, K.A., Followill, D.S., Liu, H.H., and
Starkschall, G. Verification of the accuracy of a photon
dose-calculation algorithm. J. Applied Clin. Med.
Phys. 3:26-45, 2002.
6.
Villarruel, S., Ibbott, G.S., and Lai-Fook, S.J.: Effect of
concentration and hydration on restriction of albumin
by lung interstitium. Microvascular Research 63, 2740, 2002.
7.
Cadman, P., Bassalow, R., Sidhu, N.P.S., Ibbott, G.,
Nelson, A.: Dosimetric considerations for validation of
a sequential IMRT process with a commercial treatment
planning system. Physics in Medicine and Biology
Vol. 47, 3001-3010, 2002.
8.
Aguirre, J.F., Tailor, R., Ibbott, G., Stovall, M. Hanson,
W. TLD as a tool for remote verification of output for
radiotherapy beams: 25 years of experience. Accepted
by International Atomic Energy Agency, November
2002.
9.
Ibbott, G., Beach, M., Maryanski, M.
An
anthropomorphic head phantom with a BANG®
polymer gel insert for dosimetric evaluation of IMRT
treatment delivery. Accepted by International Atomic
Energy Agency, November 2002.
10. Ibbott, G., Nelson, A., Followill, D., Balter, P., Hanson,
W. An anthropomorphic head and neck phantom for
evaluation of intensity modulated radiation therapy.
Accepted by International Atomic Energy Agency,
November 2002.
11. Izewska, J., Svensson, H., Ibbott, G. Worldwide QA
networks for radiotherapy dosimetry. Accepted by
International Atomic Energy Agency, November 2002.
12. Tailor R, Hanson W, and Ibbott G, TG-51 Experience
from 150 institutions, common errors, and helpful hints,
Journal of Applied Clinical Medical Physics, 4:102111, 2003.
13. Urie, M., FitzGerald, T.J., Followill, D., Laurie, F.,
Marcus, R., Michalski, J.
Current calibration,
treatment, and treatment planning techniques among
institutions participating in the Children’s Oncology
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Page 6 of 15
Group. Int. J. of Radiat. Oncol. Biol. Phys. 1:245-260,
2003.
14. Followill D.S., Hanson, W.F., Ibbott, G.S.,
Eglezopoulos, L.R., and Chui, C.S. Differences in
electron beam dosimetry using two commercial
ionization chambers and the TG-21 protocol: another
reason to switch to TG-51. J. Applied Clin. Med. Phys.
4: 124-131, 2003.
15. Nag, S., Quivey, J.M., Earle, J.D., Followill, D.S.,
Fontanesi, J., and Finger, P. The American
Brachytherapy
Society
Recommendations
for
Brachytherapy of Uveal Melanomas, Int. J. of Radiat.
Oncol. Biol. Phys. 56:544-555, 2003.
16. Krintz, A.L., Hanson, W.F., Ibbott, G.I. and Followill,
D.S., A Reanalysis of the Collaborative Ocular
Melanoma Study Medium Tumor Trial Eye Plaque
Dosimetry, Int. J. of Radiat. Oncol. Biol. Phys. 56:889898, 2003.
17. Diener-West, M., Albert, D. M., Frazier Byrne, Sl,
Davidorf, F. H. Followill, D. S., Green, R.L., Hawkins,
B.S., Kaiser, P.K., Robertson, D.M., and Straatsma,
B.R., Comparison of Clinical, Echographic and
Histopathologic Measurements from Eyes with
Medium-Sized
Choroidal
Melanoma:
in the
Collaborative Ocular Melanoma Study. COMS Report
No. 21, The Collaborative Ocular Melanoma Study
Group, Archives of Ophthalmology 121: 2003.
18. Tailor, R.C., Followill, D.S., Hernandez, N., Ibbott,
G.S., and Hanson, W.F., “Predictability of electron
cone ratios with respect to linac make and model,”
Journal of Applied Clinical Medical Physics, Vol. 4 (2),
pp. 172-178, February 2003.
19. Followill, D.S., Stovall, M.S., Kry, S.F., and Ibbott,
G.S., Neutron source strength measurements for Varian,
Siemens, Elekta, and General Electric linear
accelerators. Accepted by the J. Applied Clin. Med.
Phys., 2003.
20. Bencomo, J.A., Tello, V.M., Chu, C., Cho, S.H., and
Ibbott, G.S.: Anthropomorphic Breast Phantoms for
Quality
Assurance
and
Dose
Verification.
J. Applied Clin. Med. Phys., Vol. 5 No. 1, Spring
2004..
21. Cho. S.H. and Ibbott, G.S., “Reference photon
dosimetry data: A preliminary study of in-air off-axis
factor, percentage depth dose, and output factor of the
Siemens Primus linear accelerator”, J. Appl. Clin. Med.
Phy. 4 (4): 300-306, 2003.
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
22. Cho, S.H., Reece, W.D., and Kim, C.H., Validity of
two simple rescaling methods for electron/beta dose
point kernels in heterogeneous source-target geometry,
in press Radiation Physics and Chemistry, December
2003.
23. DeWerd, L.A., Huq, M.S., Das, I.J., Ibbott, G.S.,
Hanson, W.F., Slowey, T.W., Williamson, J.F.,
Coursey, B.M., Procedures for establishing and
maintaining consistent air-kerma strength standards for
low-energy, photon-emitting brachytherapy sources:
Recommendations of the Calibration Laboratory
Accreditation Subcommittee of the American
Association of Physicists in Medicine, Med. Phys. 31
(3), March 2004.
24. Nelson, A., Followill, D.S., Balter, P.A., Hanson, W.F.,
Gillin, M.T., Ibbott, G.S., Design and Implementation
of an Anthropomorphic Quality Assurance Phantom for
Intensity Modulated Radiation Therapy for the
Radiation Therapy Oncology Group, Submitted to the
Int. J. of Radiat. Oncol. Biol. Phys. 2003.
25. Cho, S.H., Vassiliev, O.N., Lee, S., Liu, H., Ibbott,
G.S., and Mohan, R. Reference photon dosimetry data
and reference phase space data for the 6 MV photon
beam from Varian Clinac 2100 series linear
accelerators, Submitted for publication in Medical
Physics, January 2004.
26. Beddar, A.S. and Tailor, R.C., Calibration of low
energy electron beams from a linear accelerator with
plane-parallel chambers using both TG-51 and TG-21
protocols, Accepted for publication by Physics in
Medicine and Biology, February 2004.
27. Rivard, M.J., Coursey, B.M., DeWerd, L.A., Hanson,
W.F., Huq, M.S., Ibbott, G.S., Mitch, M.G., Nath, R.,
and Williamson, J.F., Update of AAPM Task Group
No. 43 Report: A revised AAPM protocol for
brachytherapy dose calculations, in press Medical
Physics 2003.
28. Followill, D.S., Davis, D.S., Ibbott, G.S., Comparison
of Electron Beam Characteristics from Multiple
Accelerators, in press Int. J. of Radiat. Oncol. Biol.
Phys 2004..
Abstracts
1.
2.
Balter P, Lowenstein J, and Hanson W: Electron
Calibrations: Parallel Plate Chambers vs. Cylindrical
Chambers Using TG-51. Medical Physics, Vol. 28:
1214, 2001.
Radford, D.A., Followill, D.S., and Hanson, W.F.: A
Standard Method of Quality Assurance for Intensity
Modulated Radiation Therapy of the Prostate. Medical
Physics 28 (6): 1211, 2001.
D:\106741307.doc
Page 7 of 15
3.
Followill, D.S., Hernandez, N., and Hanson, W.F.:
Standard Wedge and Tray Transmission Values for
Varian, Seimens, Elekta/Philips Accelerators; A
Quality Assurance Tool. Medical Physics 28 (6): 1211,
2001.
4.
Krintz, A., Followill, D., Melia, M., and Hanson W.F.:
A Reanalysis of the Collaborative Ocular Melanoma
Study Medium Tumor Trial Eye Plaque Dosimetry.
Medical Physics 28 (6): 1192, 2001.
5.
Tailor, R.C. and Hanson, W.F.: Estimated Absorbed Dose Ratios "TG51/TG21" for Most Commonly Used
Cylindrical and Parallel-Plate Ion Chambers over a
Range of Photon and Electron Energies. Medical
Physics 28 (6): 1192, 2001.
6.
BenComo, J.A., Hernandez, N., and Hanson, W.F.:
Problems and Shortcomings of the RPC Remote
Monitoring Program of Institutions Dosimetry Data.
Medical Physics 28 (6): 1212, 2001
7.
Hanson, W.F., Martin, B., Kuske, R., Arthur, D.,
Rabinovitch, R., White, J., Wilenzick, R. Harris, I.,
Tailor, R., and Davis, D.: Dose Specification and
Quality Assurance of RTOG Protocol 95-17, A
192
Cooperative Group Study of Ir Breast Implants as
Sole Therapy. Medical Physics 28 (6): 1297, 2001.
8.
Lowenstein J, Roll J, Hanson W, Davis D, Lanciano R,
Calkins A, Petereit, D, Varia M, and Ibbott, G,
Radiotherapy Quality Assurance of Gynecologic
Oncology Group (GOG) Protocol 165, A Cooperative
Group Study of Carcinoma of the Cervix, Int. J. Rad.
Onc., Bio., Phys., 54:2, 283, 2002.
9.
Cho, S. H. and Ibbott, G.S. Reference Dosimetry Data
for the Siemens Primus Linear Accelerator: Preliminary
Results for Depth Dose and Output Factor, Medical
Physics 29:1944, 2002.
10. Krintz, A., Hanson, W., Ibbott, G., and Followill, D.,
Verification of PLAQUE SIMULATOR dose
distributions using radiochromic film. Medical Physics
29: 1220-1221, 2002.
11. Kry, S., Salehpour, M., Followill, D., Stovall, M., and
Rosen, I., Secondary Dose from IMRT treatments.
Medical Physics 29:1348, 2002.
12. Krintz, A., Hanson, W., Ibbott, G., and Followill, D., A
reanalysis of the Collaborative Ocular Melanoma Study
medium tumor trial eye plaque dosimetry. Int. J. Radiat.
Oncol. Biol. Phys. 54: 329-330, 2002.
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
13. Duzenli, C., Baldock, C., Ibbott, G., Schreiner, L.J.,
Jordan, K., Oldham, M., Short, K., CCPM/COMP
Symposium on Gel Dosimetry, AAPM 44th Annual
Meeting, Montreal, Quebec, Canada, 2002.
14. Nath, R., Rivard, M., Coursey, B., DeWerd, Hanson,
W., Huq, M., Ibbott, G., Williamson, J., Status of the
American Association of Physicists in Medicine
Radiation Therapy Committee’s Subcommittee on
Low-Energy
Interstitial
Brachytherapy
Source
Dosimetry: Procedure for the Development of
Consensus Single-Source Dose-Distribution. AAPM
44th Annual Meeting, Montreal, Quebec, Canada, 2002.
15. Beach, M.L., Ibbott, G.S., and Maryanski, M.,
Implementation of a Polymer Gel Dosimetry Insert for
an Anthropomorphic Head Phantom used to Evaluate
Head and Neck Intensity-Modulated Radiation
Therapy, AAPM 2002.
16. Cho, S.H. and Ibbott, G.S., Reference Photon
Dosimetry Data for the Siemens Primus Linear
Accelerator: Preliminary Results for Depth Dose and
Output Factor, AAPM 2002.
17. Aguirre, J.F., Tailor, R., Ibbott, G., Stovall, M. Hanson,
W. TLD as a tool for remote verification of output for
radiotherapy beams: 25 years of experience. Accepted
by International Atomic Energy Agency, November,
2002.
18. Ibbott, G., Beach, M., Maryanski, M.
An
anthropomorphic head phantom with a BANG®
polymer gel insert for dosimetric evaluation of IMRT
treatment delivery. Accepted by International Atomic
Energy Agency, November, 2002.
19. Ibbott, G., Nelson, A., Followill, D., Balter, P., Hanson,
W. An anthropomorphic head and neck phantom for
evaluation of intensity modulated radiation therapy.
Accepted by International Atomic Energy Agency,
November 2002.
20. Izewska, J., Svensson, H., Ibbott, G. Worldwide QA
networks for radiotherapy dosimetry. Accepted by
International Atomic Energy Agency, November 2002.
21. Nelson, A., Balter, P., Hanson, W., Ibbott, G.,
Experience with an IMRT Head and Neck QA
Phantom. Medical Physics, 29:1366, 2002.
22. Bencomo, Jose A., and Ibbott, Geoffrey S., Quality
Assurance Measurements of Beam parameters of a
Linear Accelerator using MOSFET Dosimeters: A
feasibility Study. Medical Physics, 29, (6): 1201, 2002.
D:\106741307.doc
Page 8 of 15
23. Lowenstein J, Roll J, Ibbott G: To Plan or Not to Plan:
Multiple High Dose Rate (HDR) Brachytherapy
Insertations, Medical Physics, 30:1464, 2003.
24. Bayouth, J., Followill, D., Nelson, A., Ibbott, G., and
Morrill, S., Dosimetric Effect of a Hip Prosthesis when
Delivering Intensity Modulated Radation Therapy
(IMRT): A Phantom Study, poster at ESTRO Annual
meeting September 2003.
25. Kry, S., Salehpour, M., Followill, D., Stovall, M.,
Rosen, I. Risk Assessment of Secondary Malignancies
from IMRT Treatments, Medical Physics, 30 (6): 1130,
2003.
26. Heard, M., Ibbott, G., Followill, D. Characterizing
Dose Distributions of Brachytherapy Sources Using
Normoxic Gel (WIP), Medical Physics, 30 (6): 1333,
2003.
27. Esteban, J., Ibbott, G., Hanson, W., Horton, J., White,
A., Cho, S. Energy Dependence of a TLD System for
Characterizing Low Energy Brachytherapy Sources
(WIP), Medical Physics, 30 (6): 1349, 2003.
28. Bencomo, J., Ibbott, G., Lee, S., Lii, M., Borges, J.
Evaluation of Two Linear Ionization-Chamber-Arrays
as Data Acquisition Systems for Quality Assurance of
Photon and Electron Beams, Medical Physics, 30 (6):
1350, 2003.
29. Beach, M., Ibbott, G., Followill, D., Hanson, W.,
Bloch, C., Jackson, E., Tucker, S. Implementation of a
Polymer Gel Dosimetry Insert for An Anthropomorphic
Phantom Used to Evaluate Head and Neck IntensityModulated Radiation Therapy, Medical Physics, 30 (6):
1396, 2003.
30. Rivard, M.J., Coursey, B.M., DeWerd, L.A., Hanson,
W.F., Huq, M.S., Ibbott, G.S., Nath, R., Williamson,
J.F. Update of AAPM Task Group No. 43 Report - A
Revised Protocol for Brachytherapy Dose Calculations,
Medical Physics, 30 (6): 1431, 2003.
31. Rogers, D., DeWerd, L., Ibbott, G., Huq, M. Changes
in Co-60 Air-Kerma Standards: The Rationale for
Change and the Impact On Clinical Practice, Medical
Physics, 30 (6): 1442, 2003.
32. Vassiliev, O., Liu, H.H., Dong, L, Antolak, J., Cho, S.,
Mohan, R. A Monte-Carlo-Based System for Dose
Calculation and Dosimetry QA of Photon IMRT (WIP),
Medical Physics, 30 (6): 1453, 2003.
33. Cho, S.H., Kim, C.H., Ibbott, G.S. Differences in the
Results of MCNP Simulation for Low Energy Photon
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Sources May Be Due to the Choice of Photon Cross
Section Libraries, Medical Physics, 30 (6): 1464, 2003.
Page 9 of 15
Letters to the Editor/Newsletters
1.
Ibbott, G.S. and Nath, R.: “Dose-rate constant for
Imagyn 125I brachytherapy source. Medical Physics
28(4), April 2001.
2.
Ibbott, G.S., Meigooni, A.S., and Gearheart, D.M.:
Monte Carlo determination of dose rate
constant,” Medical Physics 29, 1637-1638, 2002.
3.
Rivard, M.J., Coursey, B.M., DeWerd, L.A., Hanson,
W.F., Huq, M.S., Ibbott, G.S., Nath, R.,
Williamson, J.F.: Comment on “Let’s abandon
geometry factors other than that of a point source in
brachytherapy dosimetry,” Medical Physics 29, 19171918, 2002.
4.
Followill, D.S., Lowenstein, J.R., and Ibbott, G, Quality
Assurance: It’s Here to Stay, Newsletter American
Association of Physicists in Medicine, Vol. 28, No. 1,
January/February 2003.
5.
Tailor R, Hanson W, Ibbott G. Response to Comment
on Calculated absorbed-dose ratios, TG51/TG21, for
most widely used cylindrical and parallel-plate ion
chambers over a range of photon and electron energies.
Letter to Editor, Medical Physics, 30:478-480,2003.
6.
Olch, A., Followill, D., Thomadsen, B., Wichman, B.,
Rosemark, P., and Hunt, M., In regard to Urie et al.:
Current calibration, treatment, and treatment planning
techniques among institutions participating in the
children'’ oncology group. Int. J., Radiation Oncology
Biol. Phys, Vol. 56 No. 4:1209-1210, 2003.
7.
Palta, J.R., Deye, J.A., Ibbott, G.S., Purdy, J.A., Urie,
M.M. Credentialing of Institutions for Use of IMRT in
Clinical Trials. In regard to Engler and Rivard:
Evaluation of the NCI IMRT Benchmark for clinical
trials. IJROBP 2003; 57:S260
34. Tailor, R., Esteban, J., Ibbott, G.S. TLD Measurements
in Liquid Water of Dosimetry Characteristics of a New
125
I Seed, Medical Physics, 30 (6): 1470, 2003.
35. Borges, J.A., Bencomo, J., Ibbott, G.S.
A 3
Dimensional Gel Dosimetry Lung Equivalent (WIP),
Medical Physics, 30 (6): 1478, 2003.
36. Tailor, R., Followill, D.S., Hernandez, N., Zhu, T.S.,
Ibbott, G.S. Quality-Assurance Check of Collimator
and Phantom-Scatter Factors, Medical Physics, 30 (6):
1483, 2003.
37. Fisher, G., Followill, D., Tolani, N., Ibbott, G. The
Accuracy of 3-D Inhomogeneity Photon Algorithms in
Commercial Treatment Planning Systems Using a
Heterogeneous Lung Phantom (WIP), Medical Physics,
30 (6): 1507, 2003.
38. Tailor, R., Hanson, W., Wells, N., Ibbott, G. Are
Photon and Electron Beam Calibrations More
Consistent with TG-51 Than with TG-21?, Medical
Physics, 30 (6): 1350, 2003.
Invited Articles
1.
Cho, S. H. Dosimetry of brachytherapy sources:
Review of the AAPM TG-43 formalism, Proceedings of
the 3rd Korea-Japan Joint Meeting on Medical Physics
and the 2nd Asia Oceania Congress of Medical Physics
2002, ISSN 1589-6691, September 2002.
2.
Greven, K.M., Levenback, C., Chao, C.K.S., Delaney,
T, Del Priore, G., Eifel, P., Erickson, B.A., Followill,
D., Gaffney, D., Garcia, M., Gerszten, K., Grigsby, P.,
Henderson, R., Hricak, H., Hsu, J., Jhingrin, A., Kaye,
A., Kudelka, A., Lukka, H., Mutch, D., Nag, S.,
Rotman, M., Shefter, T., Smith, W., Stehman, F.,
Souhami, L., Wenzel, L., Winter, K.A., and Wolfson,
A. “Gynecologic Cancer Working Group,” Int. J.,
Radiation Oncology Biol. Phys, Vol. 51 No. 3
Supplement 2, 58-59, 2001.
3.
Michalski, J., Purdy, J.A., Gaspar, L., Souhami, L.,
Ballow, M., Bradley, J., Chao, C.K.S., Crane,
C., Eisbruch, A., Followill, D., Forster, K., Fowler, J.,
Gillin, M.T., Graham, M.L. Harms, W.B., Huq, S.,
Kline, R.W., Langer, M., Mackie, T.R., Mukherji, S.,
Podgorsak, E.B., Roach, M., Ryu, J., Sandler, H.,
Schultz, C.J., Schell, M., Verhey, L.J. Vicini, F., and
Winter, K.A., “Image-Guided radiation Therapy
Committee”, Int. J., Radiation Oncology Biol. Phys,
Vol. 51 No. 3 Supplement 2, 60-65, 2001.
D:\106741307.doc
Manuals, Teaching Aids, Other Publications
1.
Digital Imaging Technology Applications in
Mammography in CD of proceedings of the 2nd meeting
of ALFIM in Caracas Venezuela, October 2001.
2.
Bencomo, J.A., Hernandez, N., and Hanson, W.F.
Problems and Shortcomings of the RPC Remote
Monitoring Program of Institutions Dosimetry Data.
AAPM 43rd Annual Meeting, Salt Lake City, Utah, July
22-26, 2001.
3.
Bencomo, Jose A., and Ibbott, Geoffrey S., Quality
Assurance Measurements of Beam parameters of a
Linear Accelerator using MOSFET Dosimeters: A
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
feasibility Study. AAPM 44th Annual
Montreal, Ontario, Ca, June, 13-18, 2002.
Meeting,
4.
Lowenstein, J., Educational video on how to utilize the
TG-51 Calibration Protocol, 2001.
5.
Ibbott, G., Manual on Radiation Protection in Hospitals
and General Practice, ed. by Gerald P. Hanson, to be
published by WHO, 2001.
6.
Aguirre, F., Physical aspects of quality assurance in
radiotherapy recommendation from a panel of experts
from the IAEA within the activation of the Regional
Program ARCAL XXX (to be published).
7.
Aguirre, F. and Ibbott, G., Lecture materials for
"Prevention of Accidental Exposure", IAEA Division
of Radiation and Waste Safety, 2003.
Book Chapters
1.
2.
Ibbott, G., What every medical physicist should know
about the JCAHO standard. In Accreditation Programs
and the Medical Physicist. ed. by R.L. Dixon, P.B.
Butler, and W.T. Sobol, AAPM Monograph Series,
Medical Physics Publishing, 2001.
Ibbott, G., Professional roles in VBT. In Intravascular
Brachytherapy/Fluoroscopically Guided Interventions.
ed. by Stephen Balter, Rosanna C. Chan, and Thomas
B. Shope, Jr., AAPM Medical Physics Monograph No.
28, 2002.
3.
BenComo, José A., Introduction to Radiation Protection
for Medical Physicists, Text Book CD-ROM (under
development).
4.
J.Galvin and G. Ibbott, Commissioning and
Accreditation of a SBRT Program. Stereotactic Body
Irradiation, ed. By R. Timmerman and B. Kavanagh.
Page 10 of 15
Francisco Aguirre attended a consultant’s meeting in Vienna
to review and complete a document to establish procedures
to be followed an Audit Visits, January 30 – February 7,
2004.
William Hanson was asked to serve as a participant of the
“Peer Review Meeting on the Quality System of the
Agencies Dosimetry Laboratories”. They evaluated the
traceability of the Agencies Radiation Standards to the
International Radiation Standards, January 30 – February 7,
2004.
Geoffrey Ibbott was invited to attend as an observer and
repporteur for the Advisory Group Meeting of the IAEA,
SSC-11, concerning the Evaulation of and the
Recommendations on the Dosimetry Program (11 th Meeting
of the Scientific Committee, SSC-11). February 29 – March
4, 2004.
VISITS TO INSTITUTIONS
1. Ramesh Tailor performed radiological physics
measurements and reviewed patient dosimetry at Sutter
Cancer Center, Sacramento, CA, October 3-9, 2003.
2.
Sang
Cho
performed
radiological
physics
measurements and reviewed patient dosimetry at
CHEM Center for Radiation Oncology, Stoneham, MA,
October 6-9, 2003.
3.
Paola Alvarez performed radiological physics
measurements and reviewed patient dosimetry at the
University of Michigan Cancer Center, Ann Arbor, MI,
October 13-15, 2003.
4.
Geoffrey Ibbott performed radiological physics
measurements and reviewed patient dosimetry at the
University of Michigan Cancer Center, Ann Arbor, MI,
October 13-15, 2003.
5.
David Followill performed radiological physics
measurements and reviewed patient dosimetry at Apple
Hill Medical Center/Cherry Tree Cancer Center, York,
PA, October 13-16, 2003.
Gary Fisher
performed
radiological
physics
measurements and reviewed patient dosimetry at Emory
School of Medicine/Department of Radiation
Oncology, Atlanta, GA, November 18-21, 2003.
Books (edited and written)
1.
Radiation Therapy Physics, 2nd edition, W.R. Hendee
and G.S. Ibbott, Mosby Year-Book Publishers,
Philadelphia, 1996. (under contract to prepare 3rd
edition to be published by John Wiley, Inc.)
6.
2.
Principles of Digital Mammography 1st Ed. (University
Autonomous of Mexico City, Mex. (under
Development), 2002.
7.
Gary Fisher
performed
radiological
physics
measurements and reviewed patient dosimetry at
Memorial Hospital, Colorado Springs, CO, December
2-5, 2003.
3.
Radiation Therapy Physics, 3rd edition, W.R. Hendee
and G.S. Ibbott, Mosby Year-Book Publishers, to be
published by John Wiley, Inc. 2004.s
8.
Ramesh Tailor performed radiological physics
measurements and reviewed patient dosimetry at the
University of Rochester, Rochester, NY, December 1218, 2003.
9.
Geoffrey
PRESENTATIONS
INTERNATIONAL ACTIVITIES
D:\106741307.doc
Ibbott
performed
radiological
physics
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
measurements and reviewed patient dosimetry at the
University of Wisconsin, Madison, WI, December 2930, 2003.
10. Andrea Molineu performed radiological physics
measurements and reviewed patient dosimetry at St.
Joseph's Medical Center/University of New Mexico,
Albuquerque, NM, January 5-8, 2004.
11. Jessica Lowenstein Leif performed radiological physics
measurements and reviewed patient dosimetry at St.
Joseph's Medical Center/University of New Mexico,
Albuquerque, NM, January 5-8, 2004.
12. Andrea Molineu performed radiological physics
measurements and reviewed patient dosimetry at St.
John Hospital, Grosse Pointe Woods, MI, February 2327, 2004.
MEETINGS ATTENDED
(October 1, 2003 - February 29, 2004)
1. Geoffrey Ibbott and Irene Harris attended the
SWOG Meeting in Seattle, WA, October 1-4, 2003.
Page 11 of 15
7.
Geoffrey Ibbott attended the CIRMS Meeting in
Gaithersburg, MD, October 27-29, 2003.
8.
David Followill attended the COG Meeting in Dallas,
TX, November 4-9, 2003.
9.
Geoffrey Ibbott attended an NCI
Washington, DC, November 5, 2003.
Meeting
in
10. Geoffrey Ibbott attended the ATC Meeting in Dallas,
TX, November 6-7, 2003.
11. Geoffrey Ibbott attended the ACOSOG Meeting in
Miami, FL, November 8-10, 2003.
12. Sang Cho attended the ECOG Meeting in Miami
Beach, FL, November 11-16, 2003.
13. J. Francisco Aguirre attended the CALGB Meeting in
Scottsdale, AZ, November 21-23, 2003.
14. Geoffrey Ibbott attended the RSNA/AAPM Meeting in
Chicago, IL, November 29 - December 2, 2003.
2.
Geoffrey Ibbott, Jose Bencomo, and Andrea Molineu
attended the NCCTG Meeting in Rochester, MN,
October 8-10, 2003.
15. Jessica Lowenstein Leif and Joye Roll attended the
GOG Meeting in Atlanta, GA, January 13-18, 2004.
3.
Geoffrey Ibbott attended the ASTRO Meeting in
Salt Lake City, UT, October 17-23, 2003.
16. Geoffrey Ibbott and David Followill attended the
RTOG Meeting in New Orleans, LA, January 14-17,
2004.
5.
Jose Bencomo attended the DICOM Meeting in Salt
Lake City, UT, October 23-24, 2003.
17. Jose Bencomo attended the ACRIN Meeting in New
Orleans, LA, February 26-28, 2004.
6.
David Followill attended the PTCOG Meeting in San
Francisco, CA, October 26-29, 2003.
18. Geoffrey Ibbott attended the SWAAPM Meeting in
Brownsville, TX, February 27-28, 2004.
STATUS SUMMARY
Dosimetry review visits were made to 9 institutions, at which 80 beams† were reviewed, 3,197 TLD reports were
evaluated, and 644 patients' charts were reviewed. There are five institutions that are a special high priority for a dosimetry
review visit (based on TLD, chart check, etc).
A summary of cooperative groups and institutions’ participation in them are included in the attached table.
†The review of one photon energy is considered a "beam"; however, review of a cadre of electrons on one machine is
considered only one "beam". Measurement of TBI and other special procedures are also considered one "beam".
Respectfully submitted,
Geoffrey S. Ibbott, Ph.D.
Director, Radiological Physics Center
D:\106741307.doc
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Page 12 of 15
EXPENDITURES OF THE RADIOLOGICAL PHYSICS CENTER
(RPC Grant, the COMS Subcontract, and the High Technology Subcontract)
October 1, 2003 - February 29, 2004
____________________________________________________________________________
PERSONNEL (salaries, fringe benefits):
$1,013,854.04
10 Physicists, 1 Supervisor of Quality Assurance Dosimetry Services, 4 Dosimetrists, 1 Information Manager, 1 Database
Administrator, 1 Programmer Analyst I, 1 Radiological Physics Supervisor, 6 Radiological Physics Technicians, 1
Department Administrator, 1 Sr. Administrative Assistant, 1 Departmental Buyer, 1 Sr. Secretary, 2 Secretaries, and 4
Graduate Research Assistants.
______________________________________________________________________________
TRAVEL
Visits
Sang Cho – CHEM Center for Radiation Oncology
Ramesh Tailor – Sutter Cancer Center
David Followill – Apple Hill Medical Center / Cherry Tree Cancer Center
Paola Alvarez – University of Michigan Cancer Center
Geoffrey Ibbott – University of Michigan Cancer Center
Gary Fisher - Emory School of Medicine Department of Radiation Oncology
Gary Fisher - Memorial Hospital
Ramesh Tailor – University of Rochester
Geoffrey Ibbott – University of Wisconsin - Madison
Andrea Molineu - St. Joseph's Medical Center / University of New Mexico
Jessica Lowenstein Leif - St. Joseph's Medical Center/University of New Mexico
Andrea Molineu - St. John Hospital
Meetings:
Sang Cho - ECOG
J. Francisco Aguirre - CALGB
Irene Harris - SWOG
Geoffrey Ibbott - NCCTG
Jose Bencomo - NCCTG
Andrea Molineu - NCCTG
Geoffrey Ibbott - ASTRO
Jose Bencomo - DICOM
David Followill - PTCOG
Geoffrey Ibbott - NCI
Geoffrey Ibbott - ATC
David Followill - COG
Geoffrey Ibbott - RSNA / AAPM
Jessica Lowenstein - GOG
Joye Roll - GOG
Geoffrey Ibbott - ACOSOG
David Followill - RTOG
Geoffrey Ibbott - RTOG
Geoffrey Ibbott - SWAAPM
Geoffrey Ibbott - SWOG
Jose Bencomo - ACRIN
D:\106741307.doc
$
$
$
$
$
$
$
$
$
$
$
$
1,457.00
1,603.21
821.91
616.09
917.65
823.47
922.00
1,358.67
678.26
765.18
1093.63
1,296.71
$
14,282.78
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
672.23
690.57
1,071.81
938.82
741.27
715.79
1,021.32
735.37
1,535.95
488.03
326.16
481.31
1,002.77
724.14
775.56
588.11
885.25
633.70
720.00
1143.21
703.95
16,595.32
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
CONSULTANTS
Fiscal Year 2004 this fund contains $9,840
Page 13 of 15
$366.00
SUPPLIES:
Office supplies, laboratory and record keeping, TLD,
TLD supplies, software, etc.
$54,691.72
OTHER EXPENSE:
Postage, telephone, reprints, copying, computer fees,
equipment repair, etc.
$29,943.38
SPACE RENTAL:
$88,115.91
Total Expenditures October 1, 2003 - February 29, 2004
Indirect costs @ 26%
TOTAL
D:\106741307.doc
$203,995.11
$53,038.73
$257,033.84
RPC Report to the AAPM Radiation Therapy Committee
Report No. 117
Page 14 of 15
RPC Report to RTC March 2004
Clinical Study Groups
Office Reviewing
Patient Records
Special Projects
American College of Radiology Imaging Network
ACRIN
N/A
Participate in the development of
guidelines for quality assurance of
institution participating in ACRIN
CT Dose Measurements
American College of Surgeons Oncology Group
ACOSOG
QARC/RPC
TRUS Prostate Approval Collaboration
RPC Institution List
Stereotactic Phantom
Cancer and Acute Leukemia Group B
CALGB
QARC
TRUS Prostate Approval Collaboration
Children’s Oncology Group COG
(POG, CCG, WILMS, RHABDO)
QARC
3D Benchmark Case
IMRT Benchmark Case
Eastern Cooperative Oncology Group
ECOG
QARC
Gynecologic Oncology Group
GOG
RPC
Radiotherapy manual
HDR Pre-approval
Electronic Transfer of
Patient Records
Image Based Treatment Planning
IMRT Guidelines
National Surgical Adjuvant Breast
and Bowel Project
NSABP
RPC
IMRT Guidelines
Breast phantom
Pre-approval discussion
North Central Cancer Treatment Group
NCCTG
Radiation Therapy Oncology Group
RTOG
RPC
RTOG/RPC
Southwest Oncology Group
SWOG
QARC
Clinical Trial Support Unit
CTSU
QARC, RPC, RTOG
Collaborative Ocular Melanoma Study
COMS
RPC
D:\106741307.doc
Rapid Review of Lung Study
TRUS guided Prostate
Pre-approval
3D CRT credentialing
IMRT Phantom /pre-approval
Prostate Phantom
Prostate Implant
Pre-approval LDR/HDR
Stereotactic Phantom
Lung Phantom
Cervix HDR Pre-approval
Patient Calculation Program
RPC Institution List
RTF Numbers
TLD Monitoring
Cataracts follow-up
Visual acuity dose response