Specific Anatomic Region | Liver | ||
Application | R/O liver mass, stage liver mass, evaluate cirrhosis or Hep B/C. | ||
Author | Elliot K. Fishman, MD | ||
Reference Source | JHU protocol | ||
Scanner Used | Siemens Somatom Sensation 16 | ||
KV / Effective mAs / Rotation time (sec) | ARTERIAL 120 / 200/ 0.5 | VENOUS 120 / 200 / 0.5 | |
Detector Collimation (mm) | 0.75 | 0.75 | |
Slice Thickness (mm) | 0.75 | 0.75 | |
Feed / Rotation (mm) | 12.0 | 12.0 | |
Kernel | B30f | B30 | |
Increment (mm) | 0.5-0.75 | 0.5-0.75 | |
Image Order | cr-ca | ||
Oral Contrast | 1000 cc water over 20 minutes | ||
IV Contrast Volume and Type | 100-120 cc of Omnipaque 350 | ||
Injection Rate | 3-4 cc/sec | ||
Scan Delay (sec) | 25 sec arterial / 50-60 sec venous | ||
3D Technique Used | VRT / MIP using InSpace only | ||
Comment: Key is optimal detection and staging of disease in liver. This protocol provides excellent 3D imaging or volume visualization. Delayed scans at 3-4 minutes will be useful if cholangiocarcinoma is suspected. We then can use a similar scan protocol or use 1.5 mm detector, 2mm slice thickness and 1-2 min scan interval. Filming: Recon- Both phases 5x5 for filming. Recon lung and liver 5x5 for filming. |