IMRT QA and IN-VIVO DOSIMETRY

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QA Software
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IMRT QA and IN-VIVO DOSIMETRY
The world’s first commercially available patient
transit dose system.
Dosimetry Check software works with any Amorphous-
Use the dose volume histogram (DVH) display to compare
Silicon Imaging System to provide Pre -Treatment and In-
planned, pre-treatment delivery and measured patient
Vivo Transit Dose QA. Treatment techniques include VMAT,
transit delivery at the same time. Comparisons show
RapidArc, Conventional IMRT and Stereotactic deliveries.
differences between the planned and delivered doses so
Calculate 2D, 3D and multiple point doses and compare
between planned, pre-treatment delivery and measured
transit delivery.
Use Gamma function to compare measured transit
delivery to either planned or pre-treatment delivery.
clinicians can make decisions about adaptive changes
that might need to be made during treatments.
QA Software
Features
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EPID Dosimetry Pre-Treatment QA with nothing to set up
and no phantom required, Just shift the couch out of the
way, extend the EPID and expose treatment plan.
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3D predicted (planned) vs. absolute dose (measured)
analysis with integrated dose verification using patient CT
data set
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EPID Dosimetry Transit QA provides confirmation of dose
delivered and measures absolute in-vivo dose in cGy
viewable in 3D on patient contour.
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Full 3D comparison of dose within the patient, including
effects of inhomogeneities. Any dose, anywhere within
CT Volume.
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Requires no additional linac time for physicist. Therapists run
plans and acquire portal images when convenient, Medical
Physicist does analysis off line during business hours.
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Structure analysis provided in 3D dose volume histograms
(DVHs) and gamma volume histograms (GVHs)
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Exceptional 0.25mm spatial resolution compared to 2D/3D
arrays. No extra detector or array to purchase and maintain.
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Supports conventional IMRT, VMAT, RapidArc, Stereotactic,
and Transit
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Works with any treatment planning system.
Independently measured dose calculations with or without
the patient in the beam. All correction algorithms built in.
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Provides 2D and 3D anatomical dose results analysis of pre-treatment and on-treatment in-vivo measurements
of patients.
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Dosimetry Check utilizes patented methods with algorithms
validated in multiple publications.
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Purchase includes all computer hardware and software,
plus on site set-up, commissioning and training.
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Actual patient plan and dose distribution is verified – not
recalculated dose to a (frequently homogeneous) phantom.
Works with Elekta iView portal imager; Varian’s portal
vision; R and E arm portal imagers and Siemens Optiview
portal imager
D o s i m e t r y c h e c k s o f t wa r e S p e c i f i c at i o n s
REF Number RDC-001, RDC-002, RDC-003,
Memory 8 GB or greater
RDC-004, RDC-005
Hard Drive 500 GB or greater
Computer Included with purchase
Screen Resolution Processor CD-ROM Drive 8X speed or greater
Intel® i7 or greater
1024 x 768 or higher
Specifications subject to change without notice.
p e r f o r m a n c e va l i dat i o n
WD Renner, et. al., “A dose delivery verification method for conventional
and intensity-modulated radiation therapy using measured field fluence
distributions”, Medical Physics, Vol. 30 No. 11, Nov. 2003, pages
2996-3005. www.AAPM.org
WD Renner, K Norton, T. Holmes, “A method for deconvolution of
integrated electronic portal images to obtain incident fluence for dose
reconstruction”, JACMP, Vol. 6, No. 4, Fall 2005, pp. 22-39. www.JACMP.org
WD Renner, “3D Dose Reconstruction to Insure Correct External Beam
Treatment of Patients”, Medical Dosimetry, Fall 2007, Vol. 32, No. 3,
pages 157-165. www.MedDos.org
Warkentin B, Steciw S, Rathee S, Fallone BG. Dosimetric IMRT
verification with a flat panel EPID. Med. Phys. 2003;30(12):3143-3155.
Steciw S, Warkentin B, Rathee S, Fallone BG. Three-Dimensional IMRT
verification with a flat panel EPID. Med. Phys. 2005;32(2):600-612.
3120 Deming Way Middleton WI 53562-1461 USA
800-261-4446 . ph 608-831-0025 . fax 608-831-2202
www.standardimaging.com
© 2012 Standard Imaging, Inc. 1333-20, 4/12
Wouter J.C. van Elmpt, Sebastiaan M.J.J.G. Nijsten, Robert F.H.
Schiffeleers, Andre L.A. Dekker, Ben J. Mijnheer, Philippe Lambin, Andre
W.H. Minken. A Monte Carlo based three-dimensional dose
reconstruction method derived from portal dose images. Med. Phys.
2006;33(7):2426-2434.
Wouter J.C. van Elmpt, Sebastiaan M.J.J.G. Nijsten, Andre L.A.J. Dekker,
Ben J. Mijnheer, and Philippe Lambin. Treatment verification in the
presence of inhomogeneities using EPID-based three-dimensional dose
reconstruction. Medical Physics 2007;34(7):2816-2826.
Wouter van Elmpt, Sebastiaan Nijsten, Ben Mijnheer, Andre Dekker,
Philippe Lambin. The next step in patient-specific QA: 3D dose
verification of conformal and intensity-modulated RT based on EPID
dosimetry and Monte Carlo dose calculations. Radiotherapy and
Oncology, 2008;86:86-92.
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