title: Automated measurement of cardiothoracic ratio using an R package.
abstract: Enlarged cardiothoracic ratio (CTR) in chest X-ray is related to cardiac dysfunction. We developed a software program that provided an automated measurement of CTR from chest X-ray image files. With high accuracy, CTR was calculated from chest X-ray images taken in outpatient clinics. It may be helpful for physicians to reduce routine work and to detect latent heart disease.
authors.affiliation: Tohoku University Graduate School of Medicine, Medical Informatics Center, Tohoku University School of Medicine, Cardiovascular Division, Sendai, Miyagi, Japan.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Nakayama
authors.forename: Akiko
authors.initials: A
authors.lastname: Shibuya
authors.forename: Ryusuke
authors.initials: R
authors.lastname: Inoue
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kondo
mesh_terms: D001185:Artificial Intelligence; D006331:Heart Diseases / Q000000981:diagnostic imaging*; D007564:Japan; D010363:Pattern Recognition, Automated / Q000379:methods*; D011381:Programming Languages; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods; D013902:Radiography, Thoracic / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012984:Software