Renal infarct: contrast-enhanced power Doppler sonographic findings

Journal of Clinical Ultrasound : JCU
C YücelM Araç

Abstract

Power Doppler sonography (PDUS) is a promising technique for the diagnosis of renal infarcts. PDUS's efficacy may be enhanced by using sonographic contrast agents. We evaluated 3 cases of renal infarction using PDUS and the sonographic contrast agent Levovist. The findings were compared with those of other imaging modalities, such as scintigraphy, CT, and angiography. In case 1, PDUS showed a patent interlobar artery only in the lower part of the right kidney and no other perfusion of the right renal parenchyma. Contrast-enhanced PDUS showed patchy areas of preserved perfusion in the lower and middle-upper anterior portions of the kidney. In case 2, PDUS showed diffuse and patchy perfusion defects in the anterolateral portion of the right kidney. On contrast-enhanced PDUS, no signal enhancement was seen in these areas, but the perfusion defects were better delineated. In case 3, PDUS showed no perfusion in the upper pole of the kidney; the nonperfused area extended to the posterior upper portion of the kidney but could not be distinguished from normal tissue. After injection of the contrast agent, there was no enhancement of the posterior extension of the upper pole infarct, but Doppler signals from the surrounding normal paren...Continue Reading

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Citations

Oct 3, 2008·Urology·Shiu-Dong ChungKuo-How Huang
Dec 1, 2007·Journal of Ultrasound·F Fiorini, L Barozzi
Feb 6, 2007·The American Journal of Emergency Medicine·Chien-Cheng HuangChen-Hsen Lee
Aug 27, 2003·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Viktor SzatmáriKároly Vörös
Oct 3, 2003·Radiologic Clinics of North America·Michelle L RobbinRichard G Barr
Jan 26, 2006·The Journal of Emergency Medicine·Chien-Cheng HuangChen-Hsen Lee

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