改修型CT-1010における被曝線量

概要

論文の詳細を見る
Recently, the popularization of computerized tomography is remarkable. The fixation of patient is changed from waterbag method to beansbag method. The increase of exposure dose is inevitable by generalization of beansbag method. Results obtained in this experiment are as fllows. 1).The examination time was shorten in beansbag method than in waterbag method, but the exposure dose was increared. 2).The direct exposure to lens was decreased by rotation of X-ray tube from three o'clock to nine o'clock. 3).It is difficult to fix the patient during the examination. But the use of beansbag with sugarbag was effective to fix the patient, because hounsfiled number of sugar is - 120. 4).The scatter distribution at one scanning was max. 920 μR to min. 20 μR at 150 cm from the center of rotation.
公益社団法人日本放射線技術学会の論文
1979-05-01