The usefulness of X-ray output management in general radiography systems using exposure index

Ogasawara, Kazuhiro; Ohwada, Shinya; Tachibana, Rie; Ogasawara, Katsuhiko

The usefulness of X-ray output management in general radiography systems using exposure index

Ogasawara, Kazuhiro; Ohwada, Shinya; Tachibana, Rie et al.

Journal of X-ray Science and Technology, 2025, 33(1), 204-210

Permalink : https://hdl.handle.net/2115/98652

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アクセス権	open access
URI	https://hdl.handle.net/2115/98652
タイトル	The usefulness of X-ray output management in general radiography systems using exposure index
著者	Ogasawara, Kazuhiro ; Ohwada, Shinya ; Tachibana, Rie ; Ogasawara, Katsuhiko
ORCID 0009-0006-6689-7801 著者名 Ogasawara, Kazuhiro
著者名 Ohwada, Shinya
ORCID 0009-0000-5547-7146 著者名 Tachibana, Rie
ORCID 0000-0001-5474-7861 著者名 Ogasawara, Katsuhiko
言語	英語
キーワード	constancy tests
	exposure index(EI)
	exposure dose
	flat panel detector(FPD)
	digital radiography(DR)
	X-ray output
発行日	2025-01-01
出版者	SAGE Publications
収録物名	Journal of X-ray Science and Technology
巻(号)	33(1)
ページ	204-210
ページ数	18
抄録	Purpose: The periodic quality control of X-ray devices is important for obtaining optical medical images and determining the appropriate X-ray exposure dose. Additionally, the measurement of the X-ray output is constrained by time, technical aspects, and expenses. Therefore, we investigated the usefulness of a simple method for managing X-ray output using an Exposure Index (EI). Methods: The entire surface of the flat panel detector was X-ray-irradiated every Friday at the time of end-of-work inspection under the condition that the recorded EI was approximately 1000. The EI and exposure dose were measured, and the linearity and accuracy were evaluated. Results: The output gradually decreased from the start of the measurements in Room 1 and stabilized after the output was adjusted. The relationship between exposure dose and EI showed high linearity, with R-2 > 0.99, and the CV of EI was less than 2.41%, indicating high reproducibility. Conclusions: We demonstrated that the results of constancy tests can be easily quantified using EI. The EI method can manage the X-ray output with good reproducibility.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Ogasawara K, Ohwada S, Tachibana R, Ogasawara K. The usefulness of X-ray output management in general radiography systems using exposure index. J Xray Sci Technol. 2025 Jan;33(1):204-210. Copyright ©The Author(s) 2024. DOI: 10.1177/08953996241299994.
PISSN	0895-3996
EISSN	1095-9114
関連情報	PMID 39973768
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1177/08953996241299994