コンデンサ式X線発生装置とFCRを用いたDual Energy Subtractionの検討

概要

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We carried out an evaluation of dual energy subtraction images taken using a combination of a condenser-type X-ray apparatus and FCR from both radiographic and clinical viewpoints. Radiographic evaluation : We obtained a good image quality of X-ray picture employing two levels of energy, 120 kV 10 mAs+Cu 1-mm filter and 70 kV 25 mAS with a relatively short exposure time. Clinical evaluation : We obtained a good X-ray picture in which obstructive shadows were fairly well removed, and also a high image quality remained on both chest and larynx X-ray pictures. In the case of chest radiography, with the employment of a cardiac synchronizer, an image with a greater reduction of motional blur artifact was obtained. Futhernore, a good quality image of the larynx was obtained even though there was a difficulty in requiring two kinds of respiratory and phonative X-ray pictures.
1987-09-01