Computed tomography of renal infarction: clinical and experimental observations

Journal Article · Fri Apr 01 00:00:00 EST 1983 · AJR, Am. J. Roentgenol.; (United States)

DOI:https://doi.org/10.2214/ajr.140.4.721· OSTI ID:5350276

Glazer, G M ^[1]; Francis, I R; Brady, T M; Teng, S S

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1. Univ. of Michigan Medical Center, Ann Arbor

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.

• OSTI ID: 5350276
• Journal Information: AJR, Am. J. Roentgenol.; (United States), Vol. 140:4
• Country of Publication: United States
• Language: English

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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
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VERTEBRATES
550602* - Medicine- External Radiation in Diagnostics- (1980-)