Head and Neck Imaging
Value of Brain CTP Combined with Head and Neck CTA on Diagnosis of Collateral Circulation of Cerebral Apoplexy
Author:CHEN Zhi-jun, LIANG Li-hua, LIN Jing-xing, et al
affiliation:Futian District People's Hospital of Shenzhen City, Guangdong China 518033
PDFAbstract
Objective To evaluate the methods and value in diagnosing collateral circulation of Acute ischemic stroke with CT perfusion and CT angiography. Methods A total of 50 patients suspected with acute cerebral infarction were collected, After underwent CTA and CTP, timely clinical treatment were took. The head CT or MRI scan was took 30 days after onset. Attempt to defind the penumbra with "CBV-TTP mismatch, and delay TTP>6s", compared with review ; and determine the collateral circulation with CBV unchanged or slightly elevated, TTP significantly delayed, compare with CTA, evaluated the diagnostic value of CTP. Results As CTP diagnosing penumbra , compared with the results of the review, the difference was not statistically significant (P>0.05), with a sensitivity of 95% and a specificity of 69%; As CTP diagnosing the collateral circulation , compared with CTA, the difference was not statistically significant (P>0.05), sensitivity 76% , specificity of 81%. Conclusion Higher accuracy was found with method "CBVTTP does not match, and delay TTP>6s" to diagnose penumbra, as well as CTP to assess collateral circulation . CTP combined CTA for acute stroke has a high value
【Keyword】64-slice CT; CT Perfusion Imaging; CT Angiography; Acute Cerebral Infarction
【Chart number】R445.3;R743.3
【Document Identification Number】A
【DOI】 10.3969/j.issn.1672- 5131.2016.03.014
Chinese journal of CT and MRI
th14Volume, th 3 Issue
2016Year03Month
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