Contrast protocol | Parameters |
Oral contrast | Positive, if possible/tolerable |
Rectal contrast | Usually not necessary |
IV contrast-iodine conc. (mgl/mL) | 300 |
Volume (mL) | 100 - 115 |
Iodine dose (gI) | 46 |
Flow rate (mL/s) | 2.8 - 3.0 |
Iodine dose rate (gI/s) | 1.2 |
Saline flush-volume (mL) | 50 |
Saline flush-flow rate (mL/s) | 3 |
Scan delay (s) | 70 or care bolus |
Delayed scans | Not necessary |
Scanning Protocol | Parameters |
Scout (to program) | Anterior-posterior |
Patient position | Supine |
Scan range | Diaphragm to symphysis |
Scan direction | Cephalocaudal |
Tube voltage (KVp) | 120 |
Effective mAs | 170 to 200; use CARE Dose 4D |
Gantry rotation time (s) | 0.5 |
Slice collimation (mm) | 64 ´ 0.6 |
Pitch | 0.9 |
Table feed (mm/rotation) | 17.28 |
Reconstruction parameters | |
Slice width (mm) | 5 |
Axial slice width for 3D/MPR (mm) | 2 |
Recon. increment (mm) | 5 |
Axial recon. increment for 3D/MPR (mm) | 1 |
Special views | Coronal |
Recon. kernel | B20f/B30f |
Recon. field of view | Fit to patient |