7. LIVER (r/o hemangioma)

Scan Acquisition  Native  Arterial  Venous
Range  Above diaphragm to iliac crests  Only liver lesion as identified
 by radiologist
 Repeat series every 15 seconds
 through lesion as directed by
 radiologist
Care Dose 4D  on  on  on
Quality Reference  200 mAs  200 mAs  200 mAs
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  2.0 mm
Pitch  0.75  0.75  0.75
Kernel  B30f  B30f  B30f
Increment   3.0 mm  3.0 mm  3.0 mm 
Image order  Cranial to caudal  Cranial to caudal    Cranial to caudal  
Oral Contrast  2 hour oral  2 hour oral  2 hour oral
Intravenous Contrast  None  100 mL Isovue – 300  
Injection Rate  N/A  3.0 cc/sec  
Scan Delay  N/A 45 seconds post injection.
Call the Radiologist to locate liver lesion. Radiologist will then direct which area to scan in the intervals listed in the image order. DO NOT scan entire liver OR abdomen in serial interval scanning.
Repeat serial scanning through liver lesion every 15 seconds for 3:00 minutes total. Lesion area selected by Radiologist. May perform 10 minute delay if requested.
Reconstruction  1. Recon 3x3 B30f mediastinum medium smooth
 3. Recon 3x3 B80s
 4. Recon 1x1 B30f 3D Card for coronal reconstruction
 6. Recon 3 x 3 B30f  1. Recon 2 x 1 B30f