Value of Perfusion CT, Transcranial Doppler Sonography, and Neurological Examination to Detect Delayed Vasospasm after Aneurysmal Subarachnoid Hemorrhage
Perfusion-CT of a 40-year-old female patient with subarachnoid hemorrhage Hunt/Hess 3 caused by rupture of a right posterior communicating artery aneurysm. (a) Basis scan, (b) CBF map, (c) Blood Volume map, and (d) time to peak map. While the CBF map and Blood Volume map do not show signs of a perfusion deficit, the TTP map depicts an asymmetry in the posterior MCA-territory indicating spasm of the right terminal carotid artery and MCA.
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