[Native radiologic staging of osteoporosis--CT densitometry of lumbar vertebral spongiosa. A correlation study].
Lumbar spine radiographs in 47 patients with manifest or clinically suspected osteoporosis were evaluated, using a staging system, and correlated to quantitative computed tomography (QCT) of lumbar vertebrae. The accuracy of osteoporosis assessment, obtained with plain film analysis, was 60%, the sensitivity 67%, the specificity 56%. Statistical correlation showed high standard deviation of each of the QCT-mean values according to the respective stage groups, and altogether poor linear correlation between increasing morphological stages of osteoporosis and decreasing QCT-values. As our results show plain film differentiation of normal from reduced trabecular bone mineral content is unreliable, even by use of a staging system. The diagnostic value of spine radiographs therefore remains limited to demonstration of advanced osteoporotic changes.
Schratter
M
M
Zentralröntgeninstitut des Kaiserin-Elisabeth-Spitals der Stadt Wien.
Schratter-Sehn
A U
AU
Ackermann
C
C
Binder
A
A
Knittel
M
M
Pacher
B
B
Richter
R
R
D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed
Nativradiologisches Osteoporosestaging--CT-Densitometrie der Wirbelkörperspongiosa. Eine Korrelationsstudie.