Bone mineral density analysis method, bone mineral density analysis apparatus, and recording medium
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United States of America Patent
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Mar 24, 2015
Grant Date -
Jul 4, 2013
app pub date -
Dec 20, 2012
filing date -
Dec 28, 2011
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Abstract
From radiation images obtained by driving radiation tube with a plurality of tube voltages, including a normal tube voltage, a density gradient with respect to at least two sections of a reference substance having different radiation transmission characteristics is obtained for each of the plurality of tube voltages prior to obtaining a bone mineral density. If a radiation image captured for obtaining a bone mineral density is determined to have been captured under a tube voltage other than the normal tube voltage, an image signal representing the image and/or a bone mineral density analysis result is corrected so as to correspond to that which should have been obtained if the image had been captured under the normal tube voltage based on the relationship between the density gradient in the image and the density gradient in the radiation image captured under the normal tube voltage.
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