Measurement of bone mineral in vivo:​ an improved method

Cameron, John R.<sup>1</sup>; Sorenson, James<sup>1</sup>

Affiliations

¹Departments of Radiology and Physics, University of Wisconsin, Madison

Abstract

The mineral content of bone can be determined by measuring the absorption by bone of a monochromatic, low-energy photon beam which originates in a radioactive source (iodine-125 at 27.3 kev or americium 241 at 59.6 kev). The intensity of the beam transmitted by the bone is measured by counting with a scintillation detector. Since the photon source and detector are well collimated, errors resulting from scattered radiation are reduced. From measurements of the intensity of the transmitted beam, made at intervals across the bone, the total mineral content of the bone can be determined. The results are accurate and reproducible to within about 3 percent.

Links

DOI: 10.1126/science.142.3589.230

PubMed: 14057368

WoS: A19633053C00007

Cited By (29)

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