Abstract

Several staffing models are used to determine the required medical physics staffing, including radiotherapy technologists, of radiation oncology departments. However, since Japanese facilities tend to be smaller in scale than foreign ones, those models might not apply to Japan. Therefore, in this study, we surveyed workloads in Japan to estimate the optimal medical physics staffing in external beam radiotherapy. A total of 837 facilities were surveyed to collect information regarding radiotherapy techniques and medical physics specialists (RTMPs). The survey covered facility information, staffing, patient volume, equipment volume, workload and quality assurance (QA) status. Full-time equivalent (FTE) factors were estimated from the workload and compared with several models. Responses were received from 579 facilities (69.2%). The median annual patient volume was 369 at designated cancer care hospitals (DCCHs) and 252 across all facilities. In addition, the median FTE of RTMPs was 4.6 at DCCHs and 3.0 at all sites, and the average QA implementation rate for radiotherapy equipment was 69.4%. Furthermore, advanced treatment technologies have increased workloads, particularly in computed tomography simulations and treatment planning tasks. Compared to published models, larger facilities (over 500 annual patients) had a shortage of medical physics staff. In very small facilities (about 140 annual patients), the medical physics staffing requirement was estimated to be 0.5 FTE, implying that employing a full-time medical physicist would be inefficient. However, ensuring the quality of radiotherapy is an important issue, given the limited number of RTMPs. Our study provides insights into optimizing staffing and resource allocation in radiotherapy departments.

Details

Title
A national survey on the medical physics workload of external beam radiotherapy in Japan
Author
Tohyama, Naoki 1 ; Okamoto, Hiroyuki 2 ; Shimomura, Kohei 3 ; Kurooka, Masahiko 4 ; Ryu Kawamorita 5 ; Ota, Seiichi 6 ; Kojima, Toru 7 ; Hayashi, Naoki 8 ; Okumura, Masahiko 9 ; Nakamura, Masaru 10 ; Nakamura, Mitsuhiro 11 ; Myojoyama, Atsushi 12 ; Onishi, Hiroshi 13 

 Division of Medical Physics, Tokyo Bay Makuhari Clinic for Advanced Imaging, Cancer Screening, and High-Precision Radiotherapy , 1-17 Toyosuna, Mihama-ku, Chiba-shi, Chiba 261-0024 , Japan 
 Division of Radiation Safety and Quality Assurance, National Cancer Center Hospital , 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045 , Japan 
 Department of Radiological Technology , Faculty of Medical Science, Kyoto College of Medical Science , 1-3 Sonobechooyamahigashimachi, Nantan-shi, Kyoto 622-0041 , Japan 
 Department of Radiation Therapy, Tokyo Medical University Hospital , 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan 
 Department of Medical Technology, Tane General Hospital , 1-12-21 Kujo-minami, Nishi-ku, Osaka-shi, Osaka 550-0025 , Japan 
 Division of Radiological Technology , Department of Medical Technology, University Hospital, Kyoto Prefectural University of Medicine , 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566 , Japan 
 Department of Radiation Oncology, Saitama Cancer Center , 780 Komuro, Ina-machi, Saitama 362-0806 , Japan 
 Division of Medical Physics , School of Medical Sciences, Fujita Health University , 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 , Japan 
 Department of Radiological Sciences , Faculty of Medical Science Technology, Morinomiya University of Medical Sciences , 1-26-16 Nankoukita, Suminoe-ku, Osaka-shi, Osaka 559-8611 , Japan 
10  Department of Medical Technology, Aichi Medical University Medical Center , 17-33 Kawagoe, Nikki-cho, Okazaki-shi, Aichi 444-2148 , Japan 
11  Department of Advanced Medical Physics, Graduate School of Medicine, Kyoto University , 53 Kawahara-cho, Sakyo-ku, Kyoto 606-8507 , Japan 
12  Department of Radiological Science, Graduate School of Human Health Sciences, Tokyo Metropolitan University , 7-2-10 Higashiogu, Arakawa-ku, Tokyo 116-8551 , Japan 
13  Department of Radiology, University of Yamanashi Faculty of Medicine , 1110 Shimokato, Chuo-shi, Yamanashi 409-3898 , Japan 
Pages
911-925
Publication year
2023
Publication date
Nov 2023
Publisher
Oxford University Press
ISSN
04493060
e-ISSN
13499157
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3168369475
Copyright
© The Author(s) 2023. Published by Oxford University Press on behalf of The Japanese Radiation Research Society and Japanese Society for Radiation Oncology. This work is published under https://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.