Clinical value of color doppler ultrasonography to extracranial vertebral artery stenosis before and after percutaneous transluminal angioplasty and stent treatment
- VernacularTitle:颅外段椎动脉狭窄经皮血管内成形术及内支架治疗前后彩色多普勒超声检查的临床价值
- Author:
Liang WU
;
Shunshi YANG
;
Linhong ZHANG
- Publication Type:Journal Article
- Keywords:
vertebral artery stenosis;
percutaneous transluminal angioplasty and stent;
color doppler ultrasonography;
digital subtraction angiography
- From:
Journal of Clinical Neurology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the clinical value of color doppler ultrasonography(CDU) to extracranial vertebral artery stenosis before and after percutaneous transluminal angioplasty and stent(PTAS) treatment.Methods 61 patients with extracranial vertebral artery stenosis confirmed by digital subtraction angiography(DSA) were detected by CDU on both sides of extracranial vertebral artery before and 3 d,30 d after PTAS.The flow volume(FV),peak systolic velocity(PSV) and resistance index(RI) at the site of C5-C6 segment and stenosis were as analysis targets.Results Before PTAS,80 stenotic extracranial vertebral arteries were found by CDU(mild degree 17 cases,moderate degree 38 cases,severe degree 25 cases).Compared with DSA,coincidence was 86.9%(77.3%,95.0%,83.3%).Among them,the coincidence of moderate extracranial vertebral artery stenosis detected by CDU was excellent(P0.05).Conclusion CDU has the important value in diagnosing extracranial vertebral artery stenosis,and can be used to follow up the blood hemodynamics in the extracranial vertebral artery of patients treated by PTAS.It provided a method for observing the efficacy of PTAS treatment.
