Effect of extended field-of-view approaches on the accuracy of stopping power ratio estimation for single-energy computed tomography simulators

Lin, Chang-ShiunChang-ShiunLinTsai, Yi-ChunYi-ChunTsaiChen, Liang-HsinLiang-HsinChenCHUN-WEI WANGWu, Chia-JungChia-JungWuWAN-YU CHENHSIANG-KUANG LIANGSUNG-HSIN KUO2023-06-082023-06-082023-05-111526-9914https://scholars.lib.ntu.edu.tw/handle/123456789/631989Extended field-of-view (eFOV) methods have been proposed to generate larger demonstration FOVs for computed tomography (CT) simulators with a limited scanning FOV (sFOV) size in order to ensure accurate dose calculation and patient collision avoidance. Although the efficacy of these strategies has been evaluated for photon applications, the effect of stopping power ratio (SPR) estimation on proton therapy has not been studied. This study investigated the effect of an eFOV approach on the accuracy of SPR to water estimation in homogeneous and heterogeneous phantoms.enCT; Hounsfield unit; conversion curve; extended field-of-view; proton; stopping power ratio[SDGs]SDG3Effect of extended field-of-view approaches on the accuracy of stopping power ratio estimation for single-energy computed tomography simulatorsjournal article10.1002/acm2.14010371706912-s2.0-85159120773WOS:000986051900001https://api.elsevier.com/content/abstract/scopus_id/85159120773