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The Toshiba screen captures in this presentation represent the Aquilion ONE,
software version 4.74 ER004.
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1. Bauhs, J. A., Vrieze, T. J., Primak, A. N., Bruesewitz, M. R., & McCollough, C. H.
(2008). CT Dosimetry: Comparison of Measurement Techniques and Devices1.
Radiographics, 28(1), 245-253. doi:10.1148/rg.281075024
2. McCollough, C. H., Primak, A. N., Braun, N., Kofler, J., Yu, L., & Christner, J. (2009).
Strategies for reducing radiation dose in CT. Radiologic clinics of North America,
47(1), 27-40.
3. International Electrotechnical Commission. Medical Electrical Equipment. Part 2–
44: Particular requirements for the safety of x-ray equipment for computed
tomography. 2.1. International Electrotechnical Commission (IEC) Central Office;
Geneva, Switzerland: 2002. IEC publication No. 60601–2–44.
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http://www.aapm.org/pubs/reports/RPT_204.pdf
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1. McCollough, C. H., Leng, S., Yu, L., Cody, D. D., Boone, J. M., & McNitt-Gray, M. F.
(2011). CT Dose Index and Patient Dose: They are Not the Same Thing, EDITORIAL,
Radiology 259(2), 311-316.
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1. Bauhs, J. A., Vrieze, T. J., Primak, A. N., Bruesewitz, M. R., & Mccollough, C. H.
(2008). CT Dosimetry : Comparison of Measurement Techniques and Devices.
Radiographics, 28(1), 245-254.
2. Zhang, D., Cagnon, C. H., Villablanca, J. P., McCollough, C. H., Cody, D. D., Stevens,
D. M., Zankl, M., et al. (2012). Peak Skin and Eye Lens Radiation Dose From Brain
Perfusion CT Based on Monte Carlo Simulation. American Journal of
Roentgenology, 198(2), 412-417.
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In this example, S&S, S&V, and Volume are Axial modes (Volume mode refers to an
axial scan of a length >=4cm volume with thin acquisition slice thicknesses). Helical,
GG-Hel, and GR-Hel are Helical scan modes. Dy-Volume is a Dynamic scan mode.
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Couch Movement is in the unit of mm/rotation.
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In the highlighted example, 0.5mm is the channel thickness (T) and 80 is the number
of channels (n)
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PF and HP are related to each other by the number of channels. Multiply the PF by
the number of channels to get HP.
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The calibrated FOV is denoted by a letter: LL (50cm), L (40cm), M (32cm), S (24cm), SS
(18cm)
Note: for Large Bore scanners: XL(70cm), LL(55cm), L(40cm), M(32cm), S(24cm)
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Toshiba’s AEC is called SUREExposure3D.
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The target Image Quality setting can be chosen by clicking on the “Sure Exp. 3D” box.
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AIDR3D is integrated with the mA modulation system, SUREExposure3D. Therefore,
when AIDR is selected prior to scanning, the mA and CTDIvol will be affected.
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“Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol.
“Head” would refer to the 16cm phantom.
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“Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol.
“Head” would refer to the 16cm phantom.
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“Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol.
“Head” would refer to the 16cm phantom.
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A special thank you to Dr. Mark Supanich for his considerable efforts in leading the
working group in developing these slides.
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