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- W2076469886 abstract "We have developed a technique to measure backscattered ultrasound from lumbar vertebrae using a commercial ultrasound scanner. The spectral centroid shift between the spine and reference phantom data is an index of attenuation within the spine. From measurements from 11 vertebrae, we found a correlation coefficient of r = -0.61 between spectral centroid shift and bone mineral density (BMD). This negative correlation is expected as denser, more highly attenuating bone would be expected to produce greater downshifts in spectral centroid. This is the first technique performing quantitative ultrasound measurements on trabecular bone in the spine. This study shows that (1) acquisition of ultrasonic backscatter data from human spine <i>in vivo</i> is feasible, and (2) spectral centroid shift exhibits a moderate negative correlation with BMD in accordance with expectations." @default.
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- W2076469886 date "2003-05-23" @default.
- W2076469886 modified "2023-09-27" @default.
- W2076469886 title "Measurements of ultrasonic backscattered spectral centroid shift from spine in vivo: methodology and preliminary results" @default.
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- W2076469886 doi "https://doi.org/10.1117/12.479899" @default.
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