Method of constructing multi-tomographic image and digital 3 D X-ray photographing apparatus
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United States of America Patent
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Apr 24, 2012
Grant Date -
Nov 6, 2008
app pub date -
Dec 19, 2007
filing date -
Dec 27, 2006
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Abstract
Tomographic images in a plurality of radius places are obtained in one-time X-ray photographing, and a lot of information on the diagnose can be provided by forming a stereoscopic image with these obtained tomographic images, and thickness of radial and fineness of angular direction of tomographic image that can be obtained herein compared with prior art can be set arbitrary and can be adjusted thereby obtaining further imperceptible stereoscopic image. To this end, whole photographed images at respective divided unit angles that can be obtained in the digital dental panoramic radiography apparatus at the tomography in the circular orbit, are stored, after X-ray photographed, these photographed images are arranged substantially on the circular arc at the radius place of the tomographic image of the desired extracting part, tomographic images in radius location can be constructed by adding while shifting every photograph unit angle.
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