患者被曝線量を左右する因子の系統的研究 : 第4報グリッドの使用基準について

概要

論文の詳細を見る
Correlation between the content of scattered X-rays and the criterion to use of X-ray grid are investigated. X-ray grid has been used by radiologic technologists when the content of scattered X-rays is over than 70 percent by their experience. It is studied in this experiment of what does mean to be over than 70 percent of the content of scattered X-rays on radiographic image from the viewpoint with human ability to detect the signal. That is, in the case of that the entropy analysis is introduced into evaluation for the human ability to detect the signal and to transmit the information, it is demonstrated that the human ability to detect the noise-limited signals is remarkedly lowered when the content of scattered X-rays is over 70 percent.
公益社団法人日本放射線技術学会の論文
1982-01-01