|KV / effective mAs / rotation time||120 / 200 / 0.5 seconds|
|Detector collimation||0.75 mm|
|Slice Thickness||1.0 mm|
|Kernel (for initial reconstruction)||B30f|
|Image order||Cranial to caudal|
|Oral Contrast|| Water 250 cc every 30 min for total of 750 cc + 250 on table.
(If emergent can give 750 cc H20 30 minutes prior + 250 on table)
|Intravenous Contrast|| Isovue 300 - 120 cc.
18 - 22 ga IV needed preferably in the AC.
|Injection Rate||3.5 - 4 cc second|
|Scan Delay|| FIRST acquisition 30 - 35 seconds approximately. MUST USE CARE BOLUS.
Place ROI on descending Aorta at level of the diaphragm.
SECOND acquisition 70 second delay.
|Reconstruction|| First acquisition reconstruction 1 x 1.
First acquisition 2nd Recon and second acquisition B30f 3 x 3.
|Additional Instructions|| Scan abdomen and pelvis.
Perform thin MIP reformatting using 3D card:
Image thickness 3, Distance between images 1,
Number of slices 80 or whatever is needed to cover from anterior
vertebral body to abdominal wall at L-2 level.