Clinical application of color doppler flow imaging for diagnosis of transplant renal artery stenosis
10.3760/cma.j.issn.0254-1785.2016.09.006
- VernacularTitle:彩色多普勒超声诊断移植肾动脉狭窄的临床应用价值
- Author:
Xuzhen WANG
;
Wujun XUE
;
Xiaoming DING
;
Heli XIANG
;
Yang LI
;
Chenguang DING
;
Lizi JIAO
- Keywords:
Ultrasonography,doppler,color;
Kidney transplantation;
Renal artery;
Stenosis;
Postoperative complications
- From:
Chinese Journal of Organ Transplantation
2016;37(9):537-540
- 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 and ultrasonographic data of 216 kidney transplant recipients were collected by follow-up monitoring from September 2015 to July 2016.CDFI indexes included the peak systolic velocity (PSV) in the renal artery and resistant index (RI).Renal artery PSV and RI were measured.All suspected TRAS patients accepted transplant renal artery angiography (DSA).Results Fourteen patients with suspected TRAS accepted DSA,of which 12 patients were confirmed.The diagnostic accuracy of CDFI was 85.7％.When the POST-PSV ratio＞ 1 0,the sensitivity and specificity of diagnosis of TRAS were 91 ％ and 95 ％,respectively.CDFI indexes remarkably changed after the TRAS patients had undergone renal artery dilatation or stent implantation.PSV of the main renal artery and the POST-PSV ratio decreased significantly,and the PSV of interlobar arteries increased.Conclusions CDFI is a reliable first choice for screening transplant renal artery stenosis.The POST-PSV ratio has relatively higher sensitivity and specificity in the diagnosis of TRAS.
