title: Pneumothorax size: correlation of supine anteroposterior with erect posteroanterior chest radiographs.
abstract: Findings in 30 consecutive patients with pneumothorax were prospectively analyzed. All patients underwent supine anteroposterior (AP) and erect posteroanterior (PA) chest radiography. The interpleural distances were measured at three locations. Average interpleural distances on supine AP and erect PA radiographs were analyzed by means of correlation and linear regression analysis. The authors developed a formula that can be used to estimate the size of a pneumothorax on a supine AP chest radiograph.
authors.affiliation: Department of Radiology, College of Medicine, Catholic University of Korea, Kangnam St Mary's Hospital, Seocho-Ku, Seoul, Korea.
authors.forename: B G
authors.initials: BG
authors.lastname: Choi
authors.forename: S H
authors.initials: SH
authors.lastname: Park
authors.forename: E H
authors.initials: EH
authors.lastname: Yun
authors.forename: K O
authors.initials: KO
authors.lastname: Chae
authors.forename: K S
authors.initials: KS
authors.lastname: Shinn
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011030:Pneumothorax / Q000000981:diagnostic imaging*; D011187:Posture; D011446:Prospective Studies; D013902:Radiography, Thoracic / Q000379:methods; D016683:Supine Position