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. Author manuscript; available in PMC: 2014 Feb 9.
Published in final edited form as: AJR Am J Roentgenol. 2012 Feb;198(2):412–417. doi: 10.2214/AJR.11.7230

TABLE 1.

Posted Protocols From American Association of Physicists in Medicine (AAPM) [19] for the Scanners and Modes in This Study

Scanner and Mode Kilovoltage (kVp) Bowtie Nominal Collimation
(Total) (mm)		 Milliampere Seconds
(mAs)/Rotation		 No. of Rotations Total mAs
Sensation 64 80 General 24 × 1.2 (28) 270 40 10,800
VCT axial mode 80 Head 64 × 0.625 (40) 150 22  3300
VCT cine mode 80 Head 64 × 0.625 (40) 150 45  6750
Brilliance 64 nonjog mode 80 General 32 × 1.25 (40) 125 30  3750

Note—Sensation 64 manufactured by Siemens Healthcare, VCT manufactured by GE Healthcare, and Brilliance 64 manufactured by Philips Healthcare. There is no table movement for all four protocols listed. For Sensation 64 and VCT cine mode, the x-ray beams are on continuously; for VCT axial mode and Brilliance 64 nonjog mode, the x-ray beams alternate between on and off, and the acquisitions are not continuous.