Preliminary investigation into clinical values of intravascular ultrasound in carotid artery narrowing of transient ischemia attack
- VernacularTitle:血管内超声在短暂性脑缺血发作颈动脉狭窄评估中的初步应用
- Author:
Zhihua HAN
;
Binyao WANG
;
Jianwei GE
- Publication Type:Journal Article
- Keywords:
Endosonography;
Carotid stenosis;
Cerebral ischemia,transient;
Stents
- From:
Chinese Journal of Ultrasonography
1993;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate preliminary applic ation values of intravascular ultrasound(IVUS)in the carotid artery narrowing of transient ischemia attack (TIA) patients. MethodsIVUS has been used to 4 TIA patients with carotid artery narrowing identified by carotid artery echo, following carotid stenting and completion angiogram to detect evidence of inappropriate stent deployment. ResultsIVUS revealed the vessel wall structure, plaque morphology, measured accurately the narrowing degree of carotid artery. The narrowing percent identified by IVUS was larger than angiogram, and IVUS was more sensitive in detecting plaque than digital subtraction angiography(DSA). Four patients accepted stent deployment successfully.ConclusionsDSA underestimated the severity of the lesion. IVUS more accurately evaluates the extent and characteristics of the lesions than DSA, it is an important and useful component of carotid artery stent procedures.
