Computed tomographic analysis of urinary calculi

J. H. Newhouse, E. L. Prien, E. S. Amis, S. P. Dretler, R. C. Pfister

Research output: Contribution to journalArticlepeer-review

94 Scopus citations


Excised urinary calculi were subjected to computed tomographic (CT) scanning in an attempt to determine whether CT attenuation values would allow accurate analysis of stone composition. The mean, maximum, and modal pixel densities of the calculi were recorded and compared; the resulting values reflected considerable heterogeneity in stone density. Although uric acid and cystine calculi could be identified by their discrete ranges on one or more of these criteria, calcium containing stones of various compositions, including struvite, could not be distinguished reliably. CT analysis of stone density is not likely to be more accurate than standard radiography in characterizing stone composition in vivo.

Original languageEnglish (US)
Pages (from-to)545-548
Number of pages4
JournalAmerican Journal of Roentgenology
Issue number3
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Computed tomographic analysis of urinary calculi'. Together they form a unique fingerprint.

Cite this