Normal and abnormal features of the lumbar spine observed in dual photon absorptiometry scans

Dual photon absorptiometry (DPA) is an extensively used technique for measuring the density of the lumbar spine. The presence of vertebral and extra-vertebral pathologies can lead to increased scatter of data and artifactual bias when constructing diagnostic reference value curves. The bone density...

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Bibliographic Details
Published in:Clinical nuclear medicine Vol. 14; no. 6; p. 410
Main Authors: Hopkins, A, Zylstra, S, Hreshchyshyn, M M, Anbar, M
Format: Journal Article
Language:English
Published: United States 01.06.1989
Subjects:
Adult
Aged
Densitometry
Female
Humans
Lumbar Vertebrae - analysis
Lumbar Vertebrae - diagnostic imaging
Middle Aged
Minerals - analysis
Radiography
Radionuclide Imaging
Reference Values
ISSN:0363-9762
Online Access:Get more information
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Summary:Dual photon absorptiometry (DPA) is an extensively used technique for measuring the density of the lumbar spine. The presence of vertebral and extra-vertebral pathologies can lead to increased scatter of data and artifactual bias when constructing diagnostic reference value curves. The bone density of patients with such abnormalities cannot be compared with those of normals because it will appear artificially high. Furthermore, little effort has been made to identify and evaluate spinal abnormalities using the pictograms produced in this method. We have analyzed 60 DPA scans for morphologic changes, using x-rays for comparison, and have found practically complete concurrence between these two radiologic methods on features, though only the former is capable of accurately quantifying bone density. Examples of DPA presentation of anatomical morphology are shown to aid the user in interpreting DPA findings.
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ISSN:0363-9762
DOI:10.1097/00003072-198906000-00003