Color Doppler ultrasonography appearances of renal vein thrombosis and its diagnostic value.
- Author:
Sheng CAI
1
;
Guang-Xi ZHONG
;
Jian-Chu LI
;
Yu XIA
;
Hui-Jun LI
;
Yu-Xin JIANG
Author Information
- Publication Type:Journal Article
- MeSH: Humans; Renal Circulation; Renal Veins; diagnostic imaging; Retrospective Studies; Thrombolytic Therapy; Ultrasonography, Doppler, Color; methods; Venous Thrombosis; diagnostic imaging; drug therapy
- From: Chinese Medical Sciences Journal 2007;22(1):17-21
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo evaluate color Doppler ultrasonography (CDU) appearances of renal vein thrombosis (RVT) and its diagnostic value.
METHODSTen patients with RVT were analyzed retrospectively. Renal structure, distributions of intrarenal flow signals, echogenicity, and flow fullness in main renal veins were observed with CDU. Resistance index (RI) was recorded from the waveforms of segmental or interlobar renal artery.
RESULTSTen kidneys in nine patients were confirmed to have thrombus within the main renal veins, and one patient was confirmed to have thrombus within the small intrarenal veins. The appearances of the main renal vein thrombosis included full of solid echogenicity or strip echogenicity and complete or partial filling defect within the main renal veins, and absent or a few intrarenal venous flow signals in 70% of kidneys involved. The appearances of intrarenal vein thrombosis included obscure renal structure and no venous flow signal within the involved part of the kidneys. Reverse diastolic flow in the intrarenal artery had only a sensitivity of 36% (4/11); in other 7 kidneys without intrarenal arterial reverse diastolic flow, increased RI (mean, 0.84; range, 0.74-0.96) was found.
CONCLUSIONCDU is helpful for rapid clinical diagnosis and follow-up of RVT, and therefore can be the first imaging modality of choice for RVT.
