S-Space College of Medicine/School of Medicine (의과대학/대학원) Radiology (영상의학전공) Journal Papers (저널논문_영상의학전공)
Power Doppler imaging in acute renal vein occlusion and recanalization: a canine model
- Issue Date
- Korean Radiological Society
- Korean J Radiol 2008;9(2):128-133
- Acute Disease ; Animals ; Balloon Dilatation ; Blood Flow Velocity ; Disease Models, Animal ; Dogs ; Image Processing, Computer-Assisted ; Kidney/*blood supply/ultrasonography ; Renal Veins/*ultrasonography ; Balloon Occlusion ; Ultrasonography, Doppler
- OBJECTIVE: To evaluate the dynamic changes of the power Doppler (PD) in acute renal vein occlusion and recanalization in a canine model. MATERIALS AND METHODS: We performed a PD of the kidney during graded renal vein occlusion and recanalization induced by balloon inflation and deflation in nine dogs. The PD images were transferred to a personal computer, and the PD signals were quantified. RESULTS: We observed the temporal change of the PD signal during renal vein occlusion and recanalization, with a decrease in the PD signal during occlusion and an increase during recanalization. The mean PD signal decreased gradually as the renal vein was occluded, and conversely increased gradually with sequential relief of occlusion. The sequential change of the mean value of the PD signal was statistically significant. CONCLUSION: The PD can detect a change in renal blood flow during acute renal vein occlusion and recanalization in a canine model. The PD may be used as a helpful tool for the early detection of acute renal vein thrombosis and the monitoring of renal perfusion.
- 1229-6929 (Print)