1 2 3 The Toshiba screen captures in this presentation represent the Aquilion ONE, software version 4.74 ER004. 4 5 6 7 8 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. 9 http://www.aapm.org/pubs/reports/RPT_204.pdf 10 11 12 13 14 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. 15 16 17 18 19 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. 20 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. Slide provided by Toshiba Medical Systems 21 22 Couch Movement is in the unit of mm/rotation. Slide provided by Toshiba Medical Systems 23 24 Slide provided by Toshiba Medical Systems 25 In the highlighted example, 0.5mm is the channel thickness (T) and 80 is the number of channels (n) Slide provided by Toshiba Medical Systems 26 27 28 29 PF and HP are related to each other by the number of channels. Multiply the PF by the number of channels to get HP. Slide provided by Toshiba Medical Systems 30 31 32 Slide provided by Toshiba Medical Systems 33 34 Slide provided by Toshiba Medical Systems 35 36 Slide provided by Toshiba Medical Systems 37 38 Slide provided by Toshiba Medical Systems 39 40 Slide provided by Toshiba Medical Systems 41 42 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) Slide provided by Toshiba Medical Systems 43 44 45 46 47 Toshiba’s AEC is called SUREExposure3D. Slide provided by Toshiba Medical Systems 48 49 The target Image Quality setting can be chosen by clicking on the “Sure Exp. 3D” box. Slide provided by Toshiba Medical Systems 50 51 52 53 Slide provided by Toshiba Medical Systems 54 55 56 Slide provided by Toshiba Medical Systems 57 58 Slide provided by Toshiba Medical Systems 60 61 62 Slide provided by Toshiba Medical Systems 63 64 Slide provided by Toshiba Medical Systems 65 AIDR3D is integrated with the mA modulation system, SUREExposure3D. Therefore, when AIDR is selected prior to scanning, the mA and CTDIvol will be affected. Slide provided by Toshiba Medical Systems 66 67 68 Slide provided by Toshiba Medical Systems 69 70 71 “Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol. “Head” would refer to the 16cm phantom. Slide provided by Toshiba Medical Systems 72 73 “Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol. “Head” would refer to the 16cm phantom. Slide provided by Toshiba Medical Systems 74 75 “Body” in parentheses refers to use of the 32cm CTDI phantom to determine CTDIvol. “Head” would refer to the 16cm phantom. Slide provided by Toshiba Medical Systems 76 77 78 Slide provided by Toshiba Medical Systems 79 80 Slide provided by Toshiba Medical Systems 81 82 83 A special thank you to Dr. Mark Supanich for his considerable efforts in leading the working group in developing these slides. 84 85