Relationship between the enhanced intensity of carotid plaques in contrast-enhanced ultrasonography and the risk of cerebral infarction
10.3760/cma.j.issn.1004-4477.2010.05.008
- VernacularTitle:超声造影对颈动脉斑块增强类型与脑梗死关系的研究
- Author:
Huiliao HE
;
Pintong HUANG
;
Xiaotong WANG
;
Nianyu XIE
;
Hongxia LUO
;
Xinqiao TIAN
;
Haiyan SUN
;
Chunpeng ZOU
;
Fuguang HUANG
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Microbubbles;
Brain infarction;
Carotid stenosis
- From:Chinese Journal of Ultrasonography
2010;19(5):389-392
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the relationship between the enhanced intensity of carotid plaque and risk of cerebral infarction using contrast-enhanced ultrasonography(CEUS). Methods Eighty one patients with cerebral infarction and 95 patients without cerebral infarction were enrolled in this study. All the patients were performed using CEUS. The characteristics of plaque enhancement was categorized: grade Ⅰ , non-enhancement;grade Ⅱ , the arterial wall vasa vasorum enhancement; grade Ⅲ. the arterial wall vasa vasorum and plaque shoulder enhancement; grade Ⅳ , extensive and internal plaque enhancement. The data between the two groups was compared and analysed. Results Plaque enhancement presented with grade Ⅰ in 7 cases of 81 patients and 26 cases of 95 controls,grade Ⅱ in 14 and 37,grade Ⅲ in 26 and 17,grade Ⅳ in 34 and 15. The percentage of stroke in grade Ⅰ was 21.2% (7/33),grade Ⅱ was 27.5%(14/51), grade Ⅲ was 60.5% (26/43) and gradeⅣ was 69.4% (34/49). The percentage of stroke in grade Ⅲ was significantly higher than that in grade Ⅰ and Ⅱ ( P = 0. 001, P = 0. 001 ), and there was no significant difference between grade Ⅲ and Ⅳ ( P = 0.370). The sensitivity and specificity for grade of plaque enhancement (AUC = 0. 721, cutoff value > grade Ⅱ ) were 74. 1 % and 66. 3% respectively. Conclusions The grade of enhancement of carotid plaques in CEUS is a valid indicator to anticipate cerebral infarction. The higher the grade of enhancement of carotid plaques,the higher the risk of cerebral infarction.
