History:Vasospasm
Surview:Sternal angle to Vertex
IV Contrast:140 mL / Omni 30040 mL @ 5 mL/sec. Omni ONLY - NO SALINE FLUSH!
80 mlL@ 5 mL/sec. + 50 mL saline flush

 

Note:PERFUSIONS TO BE DONE ON 64/256 SLICE ONLY - 40 SLICE ONLY AS LAST RESORT.
Dry :Inferior to Superior- base. of skull to vertex
Perfusion :If stroke is anterior (MCA/ICA involvement) start first slice at clinoid process.
If stroke is posterior fossa stroke/basilar call radiologist for starting point.
** Start scan and contrast at the same time **
CTA :Start above COW to C4.
*****VIEW IMAGES FOR SCANS ON OPPOSITE PAGE.*****
**For CTA, use your timing from the perfusion.

 

Parameter Type :
DryPerfusionCTA
Thick/Incr.
5 @ 510 @ 0.01 @ 0.5
Kvp
12080100
mAs
300125500
Resolution
Std.Std.Std.
Collimation
64 x 0.625128x0.62564 x 0.625
Pitch
0.391 0.985
Rotation Time
0.50.50.5
Scan FOV
250250250
Display FOV
250250250
FilterUBBB
iDose4
   
Recon
1.4 / B filter

Cycle time = 1.7

40 Cycles - from Perfusion and add 1.5 sec to delay

Recon
 

 Post Processing

MIPS

Axial, coronal and sagittal M sag

Cor

Axial

5 @ 2

5 @ 2

5 @ 2

 Archiving

Dry Head
5 @ 5
Thinset Reconstructions
1.4
Perfusion
10 @ 0.0
CTA
1 @ 0.5
MIPs5 @ 2

 

Courtesy of the University of Maryland