Yigang Pei1, Daoyu Hu2
1Department of Radiology, Tongji Hospital,Tongji Medical College,Huazhong University of Science & Technology, Wuhan, Hubei, China, People's Republic of; 2Department of Radiology, Ongji Hospital,Tongji Medical College,Huazhong University of Science & Technology, Wuhan, Hubei, China, People's Republic of
Doppler sonography, MDCTV and CE-MRV scan are often used to diagnose renal vein thrombosis for renal cell carcinoma patients or evaluate renal venous system for kidney transplant patients and donors. Doppler sonography is a non-invasive and easy method, but the results are operator dependant. CE-MRV and MDCTV can show clearly the presence of tumor thrombus in inferior vena cava with renal cell carcinoma, but they are depending on Gd or iodine contrast mediums. The contrast enhanced technique has its limitations: 1: may cause nephrogenic systemic fibrosis (NSF) or contrast-Induced Nephropathy; 2: a relatively expensive examination; 3: the arterial contamination. So, in our study, a new non-contrast-enhanced MR venography (a SLEEK technique) was developed to delineate the venous spread of RCC.