Head and Neck Imaging

Clinical Study of Cerebral Vascular Spasm after Subarachnoid Hemorrhage and Analysis of CT Findings

Author:LI Wei-qin, ZHENG Hua -ying, ZHU Yu-li, et al

affiliation:Central of Imaging, People's Hospital of Yingde, Yingde 513000, Guangdong Province China

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Abstract

Objective To analyze the clinical characteristics and CT findings of cerebral vascular spasm (CVS) after subarachnoid hemorrhage (SAH). Methods The clinical data of 54 patients with SAH who were treated in our hospital between February 2010 and May 2015 were collected. All patients were examined by CT and digital subtraction angiography (DSA) after admission, and the clinical data were complete. With DSA as the golden standard, the accuracy of CT in the diagnosis of CVS after SAH was statistically analyzed. The CT imaging findings were summarized. Results There was 1 cases with ACA, MCA distal segment CVS missed diagnosed by CTA, and the accuracy rate in the diagnosis of CVS was 88.24%, slightly lower than that of DSA (P>0.05); CBV and CBF in patients with SAH and CVS were lower than those in patients with SAH and without CVS (P<0.05). The MTT and TTP were significantly longer than those of patients with SAH and without CVS (P<0.05). Conclusion The cerebral perfusion of patients with CVS after SAH decreases. MTT and TTP are prolonged. Vascular spasm shows homogeneous stenosis. The coincidence rate of CT and CTP diagnosis with DSA is high, which can provide imaging basis for clinical diagnosis and treatment.

【Keyword】Subarachnoid Hemorrhage; Cerebral Vascular Spasm; Characteristics; CT

【Chart number】R743.35;R445.3

【Document Identification Number】A

【DOI】 10.3969/j.issn.1672- 5131.2016.07.005