Characteristics of CT imaging of adult ischemic moyamoya disease
10.3969/J.ISSN.1672-8270.2015.10.004
- VernacularTitle:成年人缺血型烟雾病的CT成像特点
- Author:
Anming XIE
;
Yaojun DING
;
Gongjie LI
- Publication Type:Journal Article
- Keywords:
Adult;
Ischemic type;
Moyamoya disease;
CT imaging
- From:
China Medical Equipment
2015;(10):12-15
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the characteristics of CT imaging of adult ischemic type moyamoya disease, involving CT plain scan, CT perfusion imaging (CTP) and CT angiography (CTA). Methods:A retrospective analysis was made of the imaging data of 20 adult ischemic type moyamoya patients, including CT plain scan, CT perfusion imaging and CT angiography. CT vascular imaging features were graded I-VI with reference to Suzuki vascular grading. Results:Among the 20 patients with adult ischemic type moyamoya , ①CT plain scan: Old infarct lesions occurred in 13 cases(65%), 1 case suffered from acute cerebral infarction(5%), and negative patients totalled 6 (30%);②CT perfusion:5 cases(25%) were normal perfusion, 15 cases(75%) showed obviously low perfusion and local high perfusion;③CT angiography:patients of grade I to VI were respectively 1, 2, 5, 6, 4 and 2. Conclusion:Cerebral infarction lesions associated with adult ischemic type moyamoya disease are distributed mainly in the frontal and parietal cortex, or in watershed regions. Cerebral perfusion is characterized by normal or uneven blood perfusion, especially low perfusion. Vascular imaging manifests mostly degree III and IV, which belong to the middle phase of moyamoya disease.
