AAA Protocol - Philips 256 iCT

History:Primary concern for aortic aneurysm. Check with radiologist to make sure entire CAP is necessary. May only need to be abdomen/pelvis.
Surview:Sternal notch to lesser trochanters.
IV Contrast:100 mL / Omni 350
4mL/sec + 50 mL saline flush

 

Tracker Scan:At top of the liver
ROI :Descending aorta
HU :HU 150 with minimum scan delay

 

BREATHING INSTRUCTIONS:Expiration

 

Without IV Contrast :Scan dry chest from apices to below diaphragm.
Arterial :Scan chest, abdomen, and pelvis, from apices to lesser trochanters.
Delays :Scan from above diaphragm to iliac crest.

 

Parameter Type :
DRYARTERIALDELAYS
Thick/Incr.
4 @ 32 @ 24 @ 3
Kvp
120120120
mAs
200300300
Resolution
Std.Std.Std.
Collimation
128 x 0.625128 x 0.625128 x 0.625
Pitch
0.9930.9930.993
Rotation Time
0.50.50.5
Scan FOV
400400400
Filter
BBB
HU 150 
iDose4
iD-3iD-3iD-3
Scan Delay
 Min.180 sec.
Recon
0.9 @ 0.450.9 @ 0.450.9 @ 0.45

Post Processing

MIPS from arterial

Recon
Sagittal and coronal MIPs using 0.9 @ 0.45 dataRecon
  5 @ 2
Delays
Coronal MPR using 0.9@0.45 data4 @ 3

Archiving

Non-Contrast
4 @ 3
0.9 @ 0.45
Arterial
2 @ 2
0.9 @ 0.45
Delays
4 @ 3
0.9 @ 0.45
MIPS/MPRs
5 @ 2

Courtesy of the University of Maryland