Minoru Nakao, Shuichi Ozawa, Hideharu Miura, Kiyoshi Yamada, Masahiro Hayata, Kosuke Hayashi, Daisuke Kawahara, Takeo Nakashima, Yusuke Ochi, Takuro Okumura, Haruhide Kunimoto, Atsushi Kawakubo, Hayate Kusaba, Hiroshige Nozaki, Kosaku Habara, Naoki Tohyama, Teiji Nishio, Mitsuhiro Nakamura, Toshiyuki Minemura, Hiroyuki Okamoto, Masayori Ishikawa, Masahiko Kurooka, Hidetoshi Shimizu, Kenji Hotta, Masahide Saito, Masahiro Nakano, Masato Tsuneda, Yasushi Nagata
BACKGROUND: Inadequate computed tomography (CT) number calibration curves affect dose calculation accuracy. Although CT number calibration curves registered in treatment planning systems (TPSs) should be consistent with human tissues, it is unclear whether adequate CT number calibration is performed because CT number calibration curves have not been assessed for various types of CT number calibration phantoms and TPSs. PURPOSE: The purpose of this study was to investigate CT number calibration curves for mass density (ρ) and relative electron density (ρe )...
December 19, 2023: Medical Physics