@article{oai:kanazawa-u.repo.nii.ac.jp:00013308, author = {Tanaka, Rie and Sanada, Shigeru and Fujimura, Masaki and Yasui, Masahide and Hayashi, Norio and Okamoto, Hiroyuki and Tsuji, Shiro and Nanbu, Yuko and Matsui, Osamu and 田中, 利恵 and 真田, 茂 and 藤村, 政樹 and 安井, 正英 and 林, 則夫 and 岡本, 博之 and 辻, 志郎 and 南部, 祐子 and 松井, 修}, issue = {1}, journal = {医用画像情報学会雑誌 = Japan Society of Imaging and Information Sciences in Medicine}, month = {Jan}, note = {X-ray translucency of the lungs changes depending on inspired volume. In this study, the usefulness of measuring changes in pixel value on dynamic chest radiographs was assessed in comparison with count of radioactive isotope. In 12 abnormal subjects, there was a good correlation between them (r=0.77) . In eight normal controls, the changes in average pixel value measured in lung unit were almost equal in the right and left lungs, which was consistent with normal respiratory physiology. The results indicated that ventilation performance could be evaluated based on the changes in pixel value on dynamic chest radiographs., 金沢大学医薬保健研究域保健学系}, pages = {13--16}, title = {胸部X線動画像におけるピクセル値変化量計測の有用性 : 放射性同位元素 (RI) 計数値との比較}, volume = {29}, year = {2009} }