[Imaging diagnosis and interventional therapy of transplant renal artery stenosis].
OBJECTIVE
To discuss the diagnostic methods of transplant renal artery stenosis (TRAS) and clinical outcome following percutaneous transluminal angioplasty.


METHODS
Of 24 patients with TRAS screened by color Doppler ultrasound and confirmed with digital subtraction angiography, balloon angioplasty was performed in 19 patients, and 5 patients received stent implantation, including 2 cases of recurrent stenosis.


RESULTS
Technical success was achieved in all procedures with no serious complications. The blood pressure and serum creatinine levels of all patients were remarkably decreased (P < 0.01). Renal functions of the two patients with restenosis were significantly improved after intra-arterial stenting.


CONCLUSIONS
Doppler ultrasonography is useful in the screening and follow-up of TRAS and arteriography is still the definite diagnostic method. Percutaneous transluminal angioplasty and stenting are safe and effective procedures to treat TRAS.
Li
Xiao-guang
XG
Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China. xglee88@yahoo.com.cn
Jin
Zheng-yu
ZY
Yang
Ning
N
Liu
Wei
W
Pan
Jie
J
D000328:Adult; D015901:Angiography, Digital Subtraction; D000800:Angioplasty, Balloon; D005260:Female; D006801:Humans; D016030:Kidney Transplantation / Q000009:adverse effects*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012078:Renal Artery Obstruction / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D015607:Stents; D016896:Treatment Outcome; D018615:Ultrasonography, Doppler, Color