[Osteoporosis diagnosis by broad-band ultrasound attenuation (BUA): its correlation with established measurement procedures of bone densitometry].
Broadband ultrasound attenuation (BUA) measurements of the os calcis of 54 women were correlated to single-energy x-ray absorptiometry (SXA) of the os calcis, dual-energy x-ray absorptiometry (DXA) of the lumbar spine, age and weight. The reproducibility of the BUA measurements was 2.1%. BUA was significantly correlated with SXA (r = 0.7), DXA (r = 0.5) and age (r = 0.6). BUA values ranged from 42 to 117 dB/MHz. Our results confirm BUA's potential as a simple, inexpensive, radiation free, and precise alternative technique for osteoporosis diagnostics of the os calcis. However, the correlation observed with bone mineral density of the spine is too weak to use BUA for predicting the lumbar density status. The ability of BUA to predict the risk of osteoporotic fractures has to be determined directly by assessing the association of BUA and the prevalence or preferably the incidence of fractures.
Vahlensieck
M
M
Department of Radiology, University of California, San Francisco.
Glüer
C C
CC
Engelke
K
K
Faulkner
K G
KG
Genant
H K
HK
D015502:Absorptiometry, Photon / Q000295:instrumentation / Q000379:methods; D000328:Adult; D000368:Aged; D015519:Bone Density; D002111:Calcaneus / Q000000981:diagnostic imaging; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008875:Middle Aged; D010024:Osteoporosis / Q000000981:diagnostic imaging*; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods
Osteoporosediagnostik mittels Breitband-Ultraschallabschwächung (BUA): Korrelation zu etablierten Messverfahren der Knochendensitometrie.