Bone mineral content measuring apparatus

Details Bone mineral content measuring apparatus Bone mineral content measuring apparatus

1990-12-14

1993-04-20

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Absorption

378 54, 378156, 378158, 378 99, G01N 2306

Patent

active

052048888

ABSTRACT:
A bone mineral content measuring apparatus for obtaining the bone mineral content of an object to be examined by irradiating X-rays onto the object and measuring the X-rays which have passed through the object. An X-ray generating device generates X-rays having a continuous spectrum. The X-rays generated pass through an X-ray filter before the irradiation of the object or after the transmission of the object. The X-ray filter is composed of a substance having an X-ray absorbing characteristic with the K-absorption edge at a predetermined energy value. The X-rays which have passed through the X-ray filter and the object are detected by the X-ray detector. A data analyzer inputs the detected X-ray detection data and analyzes the bone mineral content of the object on the basis of the X-ray absorbing characteristic of the X-ray filter.

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Gustafson, Medical and Biological Engineering, X-ray Spectrophotometry for Bone Mineral Determinations, 1974, pp. 113-117.
Kelcz, Medical Physics, Absorption-Edge Fluoroscopy Using Three-Spectrum Technique, 1976, pp. 159-168.

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