Scanning densitometry system with adjustable X-ray tube current
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United States of America Patent
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Aug 20, 2002
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N/A
app pub date -
Aug 1, 2000
filing date -
Nov 23, 1994
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Abstract
A dual energy scanning densitometry system for imaging and measuring bone density maintains acceptable flux by adjusting the x-ray current or scan speed according to preceding scan line data. The amount of acceptable flux is maintained within limits modified by information about the region of the body being scanned so that different precisions may be maintained for different body regions. Scan speed and current may be controlled so that scan speed is maximized within the current limits. Essentially continuous flux control can be achieved.
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