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A cross-national investigation of CT, MRI, PET, mammography, and radiation therapy resources and utilization
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A cross-national investigation of CT, MRI, PET, mammography, and radiation therapy resources and utilization
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Journal Article
A cross-national investigation of CT, MRI, PET, mammography, and radiation therapy resources and utilization
2025
Overview
Purpose
This study aimed to analyze the domestic and international landscape of imaging diagnostics and treatments, focusing on Japan, to provide current insights for policymaking, clinical practice enhancement, and international collaboration.
Methods
Data from 1996 to 2021 were collected from Japan’s Ministry of Health, Labor and Welfare database for medical device counts of CT, MRI, PET, mammography, and radiotherapy. The National Database of Health Insurance Claims and Specific Health Checkups of Japan was utilized for examination numbers. An international comparison was made with data from 41 countries using the Organization for Economic Cooperation and Development (OECD) database.
Results
The data included a total of 108,596 CT devices, 47,233 MRI devices, 2998 PET devices, 20,641 MMG devices, and 8023 RT devices during the survey period. Upon international comparison, Japan ranked first in CT and MRI devices per million people and second in examination numbers per 1000 people. The number of PET devices per million people exceeded OECD averages; however, the number of examinations per 1000 people was below the OECD average in 2020 (Japan: 4.0, OECD: 4.9). Although Japan exceeded OECD averages in mammography device counts (Japan: 33.8, OECD: 24.5 in 2020), radiotherapy device counts were similar to OECD averages (Japan: 8.3, OECD: 7.9 in 2020).
Conclusion
We have analyzed the utilization of equipment in the context of diagnostic imaging and radiotherapy in Japan. Since the initial survey year, all devices have shown an upward trend. However, it is essential not only to increase the number of devices and examinations but also to address the chronic shortage of radiologists and allied health professionals. Based on the insights gained from this study, understanding the actual status of diagnostic imaging and radiation therapy equipment is critical for grasping the domestic situation and may contribute to improving the quality of healthcare in Japan.
Publisher
Springer Nature Singapore,Springer Nature B.V
Subject
/ Diagnostic Imaging - statistics & numerical data
/ Female
/ Humans
/ Imaging
/ Japan
/ Magnetic Resonance Imaging - statistics & numerical data
/ Mammography - statistics & numerical data
/ Medicine
/ Positron-Emission Tomography - methods
/ Positron-Emission Tomography - statistics & numerical data
/ Radiotherapy - statistics & numerical data
/ Surveys
