. Author manuscript; available in PMC: 2020 Aug 31.

Published in final edited form as: J Cardiovasc Comput Tomogr. 2016 Jul 27;10(5):359–363. doi: 10.1016/j.jcct.2016.07.016

Table 1:

Scan Parameters and Radiation Dose

N=200	Standard Dose 1	Standard Dose 2	Reduced Dose 1	Reduced Dose 2
Current ± SD, mA	389.8 ± 202.2	390.6 ± 203.3	120.5 ± 82.1	120.5 ± 85.2
Z-Coverage ± SD, mm	117 ± 7	117 ± 7	117 ± 7	117 ± 7
Scans at 120mm Z-coverage, n (%)	168 (84%)	168 (84%)	168 (84%)	168 (84%)
*DLP, mGy cm Median (5^th, 95^th)**	26.3 (16.8, 84.1)	26.3 (16.8, 84.1)	26.4 (17.1, 38.0)	26.4 (17.1, 38.0)
Effective Dose, mSv Median (5^th, 95^th)	1.4 (0.46, 3.2)	1.4 (0.46, 3.2)	0.37 (0.15, 1.2)	0.37 (0.15, 1.2)
Heart Rate ± SD, beats per minute	58 ± 8	58 ± 8	58 ± 8	58 ± 8

Abbreviations: mA = milliampere; mm = millimeters; DLP = Dose Length Product; mSv = millisievert; SD = Standard Deviation