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Title: Computed tomography of renal infarction: clinical and experimental observations

Abstract

Acute renal infarction is rarely diagnosed before death despite fairly characteristics clinical and radiographic features. Definitive radiological diagnosis of renal infarction often requires invasive procedures such as retrograde pyelogrphy and angiography. The characteristic CT findings in three patients with proven renal infarction are reported. In these patients a CT rim sign was seen: a higher-attenuation subcapsular rim surrounded renal parenchyma of lower attenuation on contrast-enhanced scans. The appearance of renal infarction varies with both the extent and age of infarction. To assess these variables, segmental, major, and total renal infarcts were created in a series of six dogs; CT scans were obtaied within 2 hr after infarction, and 1, 2, 4, and 8 weeks later. In all animals the ischemic and subsequently infarcted areas were seen on the initial examination as regions of low attenuation compared to the enhanced kidney. The low-attenuation areas markedly diminished by 2 weeks after infarction. CT should be useful in the prompt and noninvasive diagnosis of renal infarction.

Authors:
 [1]; ; ;
  1. Univ. of Michigan Medical Center, Ann Arbor
Publication Date:
OSTI Identifier:
5350276
Resource Type:
Journal Article
Journal Name:
AJR, Am. J. Roentgenol.; (United States)
Additional Journal Information:
Journal Volume: 140:4
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC USES; KIDNEYS; ATROPHY; BIOLOGICAL MODELS; DIAGNOSIS; DOGS; NEPHROSCLEROSIS; PATIENTS; ANIMALS; BODY; DIAGNOSTIC TECHNIQUES; DISEASES; MAMMALS; ORGANS; PATHOLOGICAL CHANGES; TOMOGRAPHY; UROGENITAL SYSTEM DISEASES; USES; VASCULAR DISEASES; VERTEBRATES; 550602* - Medicine- External Radiation in Diagnostics- (1980-)

Citation Formats

Glazer, G M, Francis, I R, Brady, T M, and Teng, S S. Computed tomography of renal infarction: clinical and experimental observations. United States: N. p., 1983. Web. doi:10.2214/ajr.140.4.721.
Glazer, G M, Francis, I R, Brady, T M, & Teng, S S. Computed tomography of renal infarction: clinical and experimental observations. United States. https://doi.org/10.2214/ajr.140.4.721
Glazer, G M, Francis, I R, Brady, T M, and Teng, S S. 1983. "Computed tomography of renal infarction: clinical and experimental observations". United States. https://doi.org/10.2214/ajr.140.4.721.
@article{osti_5350276,
title = {Computed tomography of renal infarction: clinical and experimental observations},
author = {Glazer, G M and Francis, I R and Brady, T M and Teng, S S},
abstractNote = {Acute renal infarction is rarely diagnosed before death despite fairly characteristics clinical and radiographic features. Definitive radiological diagnosis of renal infarction often requires invasive procedures such as retrograde pyelogrphy and angiography. The characteristic CT findings in three patients with proven renal infarction are reported. In these patients a CT rim sign was seen: a higher-attenuation subcapsular rim surrounded renal parenchyma of lower attenuation on contrast-enhanced scans. The appearance of renal infarction varies with both the extent and age of infarction. To assess these variables, segmental, major, and total renal infarcts were created in a series of six dogs; CT scans were obtaied within 2 hr after infarction, and 1, 2, 4, and 8 weeks later. In all animals the ischemic and subsequently infarcted areas were seen on the initial examination as regions of low attenuation compared to the enhanced kidney. The low-attenuation areas markedly diminished by 2 weeks after infarction. CT should be useful in the prompt and noninvasive diagnosis of renal infarction.},
doi = {10.2214/ajr.140.4.721},
url = {https://www.osti.gov/biblio/5350276}, journal = {AJR, Am. J. Roentgenol.; (United States)},
number = ,
volume = 140:4,
place = {United States},
year = {Fri Apr 01 00:00:00 EST 1983},
month = {Fri Apr 01 00:00:00 EST 1983}
}