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D R Taves

Publications and source records attributed to D R Taves.

42 records · Page 3Linked to original sources
PubMedDate not supplied

Comparisons between X-ray photodensitometric and gamma-ray absorptiometric findings of bone mineral measurements, and the evidence of their convertibility.

Fifty-two bone mineral measurements were made in chronic renal failure patients using two different radiologic techniques concurrently: gamma-ray absorptiometry; and x-ray photodensitometry. Although the sites of measurements of the cortical bone mineral mass in radius were different (distal vs. proximal) and different parameters were determined (in units of gm/cm vs. gm/cm2), a moderately good correlation was found between measurements by the two techniques (r = 0.61, p less than 0.001). Using external bone width, it was possible to calculate from photodensitometric measurements the bone mass per unit length (gm/cm). This conversion improved the correlation with absorptiometry values considerably (r = 0.78, p less than 0.001). A similar correlation was found between the trabecular bone mass in the distal radius, measured by absorptiometry, and the cortical bone mass in the proximal radius, determined by photodensitometry (r = 0.79, p less than 0.001), the correlation between the cortical and trabecular bone masses by absorptiometry being only slightly higher (r = 0.84, p less than 0.001). The residual variations not explained by the correlations between the absorptiometric and photodensitometric techniques may be largely due to the real differences of bone mineral masses at the two measuring sites and by the inherent methodological errors.

Absorptiometry, Photon↗
PubMedDate not supplied

Transient painful osteolysis -- a metabolic study.

A 45-year-old woman developed severe pain in both knees, attributable to subchondral osteolysis of the femoral condyles. A metabolic investigaexcretion disclosed a marked increase in urinary excretion of calcium, hydroxyproline and fluoride. There was an accompanying elevation of erythrocyte sedimentation rate and peripheral eosinophilia. At the height of fluoride tion, fluoride renal clearance was reduced over values determined later when the fluoride excretion was diminished. We speculate that there may have been circulating microcrystals of hydroxyapatite to explain these differences of renal clearance.

Blood Sedimentation↗