Differences of renal parenchymal attenuation for acutely obstructed and unobstructed kidneys on unenhanced helical CT: A useful secondary sign?

C. S. Georgiades; C. J. Moore; D. P. Smith

doi:10.2214/ajr.176.4.1760965

Differences of renal parenchymal attenuation for acutely obstructed and unobstructed kidneys on unenhanced helical CT: A useful secondary sign?

C. S. Georgiades, C. J. Moore, D. P. Smith

School of Medicine

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

OBJECTIVE. The purpose of this study was to ascertain whether the difference in attenuation frequently noted on unenhanced helical CT scans between a patient's acutely obstructed kidney and the unobstructed kidney is a reliable secondary sign of acute renal obstruction. CONCLUSION. In 95% of patients with acute renal obstruction, the affected kidney was less dense than the unobstructed kidney. When visually detected by radiologists using CT, this difference in density was at least two standard deviations above normal, making it a reliable secondary sign for acute obstruction.

Original language	English (US)
Pages (from-to)	965-968
Number of pages	4
Journal	American Journal of Roentgenology
Volume	176
Issue number	4
DOIs	https://doi.org/10.2214/ajr.176.4.1760965
State	Published - 2001

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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Differences of renal parenchymal attenuation for acutely obstructed and unobstructed kidneys on unenhanced helical CT: A useful secondary sign?

Abstract

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