Scan Acquisition |
Native |
Arterial |
Venous |
KV / effective mAs / rotation time |
120 / 200 / 0.5 |
120 / 200 / 0.5 |
120 / 200 / 0.5 |
Detector collimation |
1.5 mm |
1.5 mm |
1.5 mm |
Slice Thickness |
3.0 mm |
3.0 mm |
3.0 mm |
Pitch |
0.75 |
0.75 |
0.75 |
Kernel |
B30f |
B30f |
B30 |
Increment |
1.5 mm |
1.5 mm |
1.5 mm |
Image order |
Cranial to caudad. Image from 11th vertebral body through renal hila. |
Oral Contrast |
INPATIENTS: 250cc’s of water mixed with 7cc of Gastroview = 1 dose. 1 Dose given orally every ½ hour for two hours prior to exam OUTPATIENTS: 1 bottle of Redicat taken orally two hours before exam. ½ bottle of Redicat given 45 minutes prior to exam. Last ½ of 2nd Redicat bottle given on the CT table |
Intravenous Contrast |
150 cc Isovue 300 at 3 cc/sec 18 – 22 ga IV needed preferably in the AC. |
Scan Delay |
Initial / 40 sec arterial / 75 sec venous |