Computed tomographic analysis of urinary calculi

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Am. J. Roentgenol.; (United States)

DOI:https://doi.org/10.2214/ajr.142.3.545· OSTI ID:6915887

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

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.

• Research Organization: Massachusetts General Hospital and Harvard Medical School, Boston
• OSTI ID: 6915887
• Journal Information: Am. J. Roentgenol.; (United States), Journal Name: Am. J. Roentgenol.; (United States) Vol. 142:3; ISSN AJROA
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
AROMATICS
AZAARENES
BODY
CALCULI
CHEMICAL COMPOSITION
COMPUTERIZED TOMOGRAPHY
DENSITY
DIAGNOSTIC TECHNIQUES
HETEROCYCLIC COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANS
PHYSICAL PROPERTIES
PURINES
TOMOGRAPHY
URIC ACID
URINARY TRACT
XANTHINES