Image quality and pathology assessment in CT Urography: when is the low-dose series sufficient?

BMC Medical Imaging

Table 1 Acquisition parameters for a clinical CT Urography on a 192-slice dual source scanner in a single source scan mode

Phase	Acquisition data	kV	Qref mAs	Gantry Rotation (s)	Pitch	Slice thickness/increment mm	Scan Delay	Care kV
Native	192 × 0.6	120	45	0.5	0.6	3/2		On
Nephrogram	192 × 0.6	120	140	0.5	0.6	3/2	100 s	Semi
Excretory	192 × 0.6	120	45	0.5	0.6	3/2	10 min	On

The scan length ranged from diaphragm to symphysis pubis. The images were reconstructed with kernel Bf36 and iterative reconstruction ADMIRE strength 3. In the nephrographic phase semi Care kV setting was used resulting in 100 kV and effective tube load of 181mAs

ISSN: 1471-2342