Accuracy of dual photon absorptiometry in excised femurs

Journal Article · Tue Nov 01 04:00:00 EST 1988 · J. Nucl. Med.; (United States)

OSTI ID:6601767

Erman, J; Ott, S M

We investigated the accuracy of assessment of bone mineral content (BMC) by dual photon absorptiometry (DPA). Measurements were compared between BMC and ashed weight using two related scanners. The BMC in different locations of the femur was determined. Twelve cadaver femurs were cleaned of all soft tissue, divided into four parts (head, neck, trochanteric region, and shaft), and measured for BMC in an ethanol/water solution. The bones were then ashed and weighed. Volumetric density was also determined. The correlation coefficient between ash weight and BMC was 0.99 with an s.e.e. of 0.51 g and relative error of 4.8%. Similar correlations were seen within each region. The correlation between the machines was 0.99. Differences in volumetric density were found, with the density of the shaft greater than other regions, and the neck greater than the head or trochanteric regions.

• Research Organization: Univ. of Washington, Seattle (USA)
• OSTI ID: 6601767
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 29:11; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ACCURACY
BODY
CHEMICAL COMPOSITION
COMPUTERIZED TOMOGRAPHY
DENSITY
DIAGNOSTIC TECHNIQUES
EMISSION COMPUTED TOMOGRAPHY
FEMUR
IN VITRO
MINERALS
ORGANS
PHYSICAL PROPERTIES
SKELETON
TOMOGRAPHY