title: Influence of contrast materials on dose calculation in radiotherapy planning using computed tomography for tumors at various anatomical regions: a prospective study.
abstract: Influences of iodinated contrast media on dose calculation were studied in 26 patients. Mean increases in monitor units by contrast media administration were less than 1% and considered negligible in planning of whole-brain, whole-neck, mediastinal, and whole-pelvic irradiation. However, mean increases over 2% were seen in planning of upper-abdominal radiotherapy.
authors.affiliation: Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. yshiba@med.nagoya-cu.ac.jp
authors.forename: Yuta
authors.initials: Y
authors.lastname: Shibamoto
authors.forename: Asaka
authors.initials: A
authors.lastname: Naruse
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Fukuma
authors.forename: Shiho
authors.initials: S
authors.lastname: Ayakawa
authors.forename: Chikao
authors.initials: C
authors.lastname: Sugie
authors.forename: Natsuo
authors.initials: N
authors.lastname: Tomita
mesh_terms: D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy; D003287:Contrast Media / Q000008:administration & dosage*; D004307:Dose-Response Relationship, Radiation; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy; D008875:Middle Aged; D009369:Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy; D011446:Prospective Studies; D011880:Radiotherapy Planning, Computer-Assisted; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media