A tomographic imaging system utilizing X-ray Compton backscatter

A preliminary version of a thoracic imaging system developed to help facilitate the noninvasive locating of a coronary bypass graft for subsequent flow patency evaluation by iodine X-ray fluorescence is discussed. The imaging technique utilizes the selective measurement of Compton backscattered X-rays to inexpensively construct an effective tomographic image of the heart-lung field where grafts are located. Background theory, system design, and preliminary results are presented.<
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