Application value of contrast-enhanced ultrasound in vascular complications of transplanted kidney
10.3969/j.issn.1674-7445.2015.01.009
- VernacularTitle:超声造影在移植肾血管并发症中的应用价值
- Author:
Chuan PENG
1
;
Manxia LIN
;
Yan WANG
;
Changxi WANG
;
Xiaoyan XIE
;
Zuofeng XU
Author Information
1. 中山大学附属第一医院超声科
- Keywords:
Ultrasound;
Contrast-enhanced ultrasound;
Transplanted kidney;
Vascular complication;
Artery stenosis
- From:
Organ Transplantation
2015;(1):41-45
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the application value of contrast-enhanced ultrasound (CEUS) in the diagnosis of vascular complication (VC) of transplanted kidney. Methods Imaging data of conventional ultrasound and CEUS in 28 patients suspected with VC of transplanted kidney were analyzed retrospectively.The results of computed tomography angiography (CTA)or digital subtraction angiography (DSA)were served as the diagnostic standard. The value of CEUS in diagnosing VC of transplanted kidney was analyzed. Results No adverse reaction related to contrast agent was observed in 28 patients during the CEUS examination. And 22 cases with VC were confirmed. VCs were detected correctly by CEUS in 17 cases,but 5 cases with transplant renal artery stenosis (TRAS ) were missed and 1 case with focal infarction in transplanted kidney was misdiagnosed. The diagnostic sensitivity,specificity,positive predictive value (PPV),negative predictive value (NPV)and accuracy of CEUS for VC of transplanted kidney were 0.77,1.00,1.00,0.55 and 0.82, respectively. The diagnostic sensitivity,specificity,PPV,NPV and accuracy of conventional ultrasound and CEUS for TRAS were 0.37 and 0.74,0.89 and 1.00,0.88 and 1.00,0.40 and 0.64,0.54 and 0.82, respectively. There were significant differences in the sensitivity and accuracy between conventional ultrasound and CEUS (both in P<0.05 ). Conclusions CEUS is an effective method for detecting VC of transplanted kidney.
