Clinical Application Value of Color Doppler Flow Imaging for Evaluating Transplant Renal Artery Stenosis
- VernacularTitle:彩色多普勒超声评价移植肾动脉狭窄的临床应用价值
- Author:
Ping YANG
1
;
Wanyuan HE
;
Sheng ZHOU
;
Zhengbiao JI
;
Wenping WANG
Author Information
1. 复旦大学附属中山医院超声科
- Keywords:
Transplant renal artery stenosis;
Color Doppler flow imaging
- From:
Chinese Journal of Clinical Medicine
2015;(5):684-687
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the clinical value of color Doppler flow imaging (CDFI)for evaluating transplant renal artery stenosis (TRAS) .Methods:Clinical data and ultrasonography results of 19 patients with suspected TRAS ,which were evaluated by CDFI ,were retrospectively analyzed .CDFI indexes included the peak systolic velocity (PSV) in the main renal artery ,a ratio of the PSV in the main renal artery to that in the interlobar arteries (the POST‐ PSV ratio) and the resistant index (RI) in the interlobar arteries .The randomly enrolled 25 patients with stable transplant renal function were set as control group .The examination results were evaluated by “gold standard” digital subtraction angiography (DSA ) or magnetic resonance angiography .Paeients with TRAS diagnosed by DSA or MRA were set as stenosis group .Results:Thirteen casts showed stenosis .There were 2 false positive cases for CDFI diagnosis .And 4 cases did not undergo DSA or MRA examination . Compared with that in the control group ,the PSV of the main renal artery and the POST‐ PSV ratio in the stenosis group increased significantly(P<0 .001) ,however ,the RI in the interlobar arteries decreased significantly(P<0 .001) .CDFI indexes remarkably changed after the TRAS patients had undergone renal artery dilatation or stent implantation .Conclusions:CDFI is a reliable first choice method for screening transplant renal artery stenosis .
