Cerebral Venogram (CT) PRINT

Last Updated: 3/4/2021.
What changed: Contrast delay to 30-40 sec.

History: Dural venous sinus thrombosis, venous infarction.

HEAD ANGIGORAM
LocalizerFrontal and Lateral
InstructionsDo not swallow
PhaseVenous
Contrast agent350-370
Contrast Volume/ rate100 mL @ 4-5 mL / sec
Contrast Delay30-40 sec
CoverageC2-Vertex
AngulationNone
Scan typeHelical
kVp110-130
Target CTDIvol (mGy)< 15
Max CTDIvol (mGy)20
Max scan time (sec)20
Pitch0.9-1.5:1
DFOV22-24
SEND TO PACS
Ax 0.5-0.625 mm Overlapped Standard
MIP Ax 5 x 1 mm: foramen magnum to vertex, supraorbitomeatal alignment
MIP Cor Head 5 x 1 mm: Basilar artery / clivus alignment
MIP Sag Head 5 x 1 mm: Bone to Bone, midline aligment
3D VRT: COW with top and side of skull cut away