タジマ　ヒロユキ   TAJIMA Hiroyuki   田島　廣之    所属   埼玉医科大学  医学部 国際医療センター　放射線科（放射線腫瘍科、画像診断、核医学科）    職種   特任教授
論文種別	学術雑誌(原著)
言語種別	英語
査読の有無	査読あり
表題	Diaphragm height varies with arm position: comparison between angiography and CT
掲載誌名	正式名：JAPANESE JOURNAL OF RADIOLOGY ISSNコード：18671071
出版社	SPRINGER
巻・号・頁	34(11),724-729頁
著者・共著者	Shiro Onozawa,Satoru Murata,Takayoshi Kimura,Tatsuo Ueda,Fumie Sugihara,Daisuke Yasui,Hiroyuki Tajima
発行年月	2016/11
概要	To investigate how elevation of the arms affects diaphragm height.We retrospectively reviewed angiography and computed tomography (CT) portography data from 44 patients who were treated for hepatocellular carcinoma at our institution from July 2013 to May 2014. Diaphragm height was determined independently by two radiologists as the distance from the upper edge of the first lumbar vertebra to the highest point of the right diaphragm. The differences in height between angiography and CT images were compared using a paired t-test. We also evaluated the influence of table height and distance between X-ray tube and flat panel detector [source-image distance (SID)]on a phantom model.Diaphragm height was higher on CT images [mean +/- standard deviation (SD), 113.2 +/- 27.2 mm]than on angiography images (105.5 +/- 27.8 mm; P< 0.001). Inter-rater correlation was excellent both in angiography (R = 0.920; P< 0.001) and CT (R = 0.950; P< 0.001) measurements. Table height and SID had no influence on diaphragm height measurements (P = 0.33).The diaphragm elevation was observed on CT with arm elevation compared with angiography without arm elevation.
DOI	10.1007/s11604-016-0579-6