Assessment of sub-milli-sievert abdominal computed tomography with iterative reconstruction techniques of different vendors

Table 2 Mean computed tomography dose index volume, dose length product, and estimated effective dose for standard of care and reduced dose computed tomography for vendor A, B and C

	Vendor A		Vendor B		Vendor C		P value
	SD	RD	SD	RD	SD	RD
CTDIvol (mGy)	10 ± 3.4	1.2 ± 0.1	10 ± 3.4	1.3 ± 0.1	9 ± 5.3	1.4 ± 0.1	< 0.001
DLP (mGy*cm)	483 ± 187	64 ± 2	426 ± 204	61 ± 3	386 ± 259	61 ± 3	< 0.001
Estimated effective dose (mSv)	7 ± 3	0.9 ± 0.1	6 ± 3	0.9 ± 0.1	6 ± 4	0.9 ± 0.1	< 0.001

DLP: Dose length product; CTDI_vol: Computed tomography dose index volume; SD: Standard of care; RD: Reduced dose.