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Case Reports
. 2010 Nov;28(9):680-3.
doi: 10.1007/s11604-010-0469-2. Epub 2010 Nov 27.

Diagnosing a large slowly enhanced cerebral aneurysm using four-dimensional multiphase dynamic contrast-enhanced computed tomography angiography

Kazufumi Suzuki  1 , Satoru Morita, Ai Masukawa, Haruhiko Machida, Eiko Ueno
Affiliations
Case Reports

Diagnosing a large slowly enhanced cerebral aneurysm using four-dimensional multiphase dynamic contrast-enhanced computed tomography angiography

Kazufumi Suzuki et al. Jpn J Radiol. 2010 Nov.

Abstract

Our patient was diagnosed with acute subarachnoid hemorrhage on plain head computed tomography (CT). Multiphase dynamic contrast-enhanced CT angiography on a 64-row multidetector scanner revealed a large aneurysm in the left middle cerebral artery that was not detected on conventional helical CT angiography. We believed that increased intracranial pressure and rough thrombus within the aneurysm delayed its peak enhancement. Our case demonstrates the diagnostic utility of four-dimensional CT with multiphase volume data in cases of lesions with delayed enhancement.

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