CT Brain Perfusion

When performing a CT brain perfusion exam, it is common to first do a non-contrast head, a CTA of the head, and then perfusion imaging.

Patient

Patient Position
-Supine
Patient Prep
-IV placement
-Contrast-50mL
-Xenon (Xe) gas (per department protocol)
Clinical Indicators
-Stroke, vasospasm, cerebrovascular reserve detection, can be used with temporary balloon occlusion.

Technical

Scan Range
-The area of brain tissue of interest
Algorithm
– Soft tissue
Slice Thickness
-3mm-5 mm
Reformats
-Coronal
-Sagittal
-3D
-Flow Mapping

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