COLOR FLOW IMAGING IN THE DETECTION OF FEMORODISTAL GRAFT AND NATIVE ARTERY-STENOSIS - IMPROVED CRITERIA

被引：31

作者：

TAYLOR, PR ^{[1
]}

TYRRELL, MR ^{[1
]}

CROFTON, M ^{[1
]}

BASSAN, B ^{[1
]}

GRIGG, M ^{[1
]}

WOLFE, JHN ^{[1
]}

MANSFIELD, AO ^{[1
]}

NICOLAIDES, AN ^{[1
]}

机构：

[1] ST MARYS HOSP,SCH MED,DEPT RADIOL,ACAD SURG UNIT,IRVINE LAB CARDIOVASC INVEST & RES,PRAED ST,LONDON W2 1PG,ENGLAND

来源：

EUROPEAN JOURNAL OF VASCULAR SURGERY | 1992年 / 6卷 / 03期

关键词：

COLOR FLOW IMAGING; FEMORODISTAL GRAFTS; GRAFT STENOSIS; NATIVE ARTERY STENOSIS;

D O I：

10.1016/S0950-821X(05)80310-X

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Vein graft or native artery stenosis after femoro-distal revascularisation is a common cause of graft occlusion. The early detection and treatment of such stenoses offers the potential for better graft patency than salvage procedures undertaken for graft thrombosis. In the past, two criteria using duplex scanning have been used to detect grafts at risk: (a) a localised increase in the peak velocity (V2) by 100% or more in comparison to the peak velocity (V1) 2 cm upstream (i.e. V2/V1 ratio > 2.0), and (b) a decrease in average peak velocity to less than 45 cm s-1. Seventy-four consecutive patients with femoro-distal vein grafts have been studied with intravenous digital subtraction angiography to detect stenosis (> 50% diameter) and colour flow imaging using both duplex scanning criteria (a) and (b) at 1.5, 3, 6, 9 and 12 months after operation. The results show that the V2:V1 ratio > criterion had a sensitivity of 100% and a specificity of 83%. Stenoses in the native distal arteries were not detected. Low average peak velocity < 45 cm s-1 had a sensitivity of 61% and a specificity of 98%. By combining both criteria the sensitivity for detecting stenoses in both the vein graft and native distal artery, became 100% and the specificity 98%.

引用

页码：232 / 236

页数：5

共 10 条

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