@article{oai:shiga-med.repo.nii.ac.jp:00000054,
 author = {三品, 淳資 and 村田, 喜代史 and MURATA, Kiyoshi and 森田, 陸司 and MORITA, Rikushi},
 journal = {滋賀医科大学雑誌},
 month = {Feb},
 note = {The daignosis of mild increase in the lung CT density, which is seen in patients withheart failure, is difficult because it is influenced by window settings and respiratory levels. The purpose of this study was to develope a quantitative method which is independent from alteration of respiratory levels. High resolution ultra fast CT was performed in 7 volunteers and 192patients with heart disease using 0. 1 msec-scanning time without breath-holding. Lung fields were divided into three ROIs (anterior, intermediate, and posterior lung) at the three constant slice levels. About all subjects, mean lung density of anterior lung and that of posterior lung was measured, and the difference between mean lung density of anterior lung and that of posterior lung was calculated. It was found that strong linear relationship between the lung density of posterior lung and the difference in both the volunteers (r -0.94-0.98) and the patients (r -0.72-0.88). Moreover, the 192 patients were divided into two groups; cardiac dyspnea group, who had present illness or past history of cardiac failure from chronic heart failure, and no dyspnea group, who had no such history. In each lung field, the regression line in cardiac dyspnea groupwas below that in no heart failure group. And. each Y-intercept of the former was statistically lower than the latter in upper and middle slice levels (p<0.05-0.001). In conclusion, correlation between the difference between mean lung density of anterior lung and that of posterior lungand mean lung density of posterior lung was useful index to estimate the change of lung CT density in chronic heart failure without respiratory influence.},
 pages = {5--15},
 title = {重力効果を利用した慢性心不全における肺野濃度上昇に対する超高速CTを用いた定量的評価法についての臨床的検討},
 volume = {13},
 year = {1998},
 yomi = {ムラタ, キヨシ and モリタ, リクシ}
}