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Article History

Received: 22 August 2025

Accepted: 6 February 2026

First Online: 31 March 2026

Declarations

:

: This retrospective study was approved by the institutional review board of Fujita Health University Hospital (HM20-603) on May 19, 2021. This study was also compliant with the Health Insurance Portability and Accountability Act, which waived the requirement for written informed consent.

: This study was also compliant with the Health Insurance Portability and Accountability Act, which waived the requirement for written informed consent. Informed consent was obtained in the form of opt-out on the website. Those who rejected were excluded.

: This study was financially and technically supported by Canon Medical Systems Corporation and financially supported by Smoking Research Foundation. Drs. Ohno and Nomura received a research grant from Canon Medical Systems Corporation, which also supported this work technically. Drs. Ohno and Ozawa also received research grants from the Smoking Research Foundation. Messer. Aoyagi, Ito, Fujii, Araoka, and Akino and Ms. Kimata are employees of Canon Medical Systems Corporation. Furthermore, all authors and our institution and department chair, Prof. Yoshiharu Ohno, who is the corresponding author, agree to the publication of this report. This information is stated in the main text. Prof. Yoshiharu Ohno, the first and corresponding author, is Professor and Chairman of Diagnostic Radiology in Fujita Health University School of Medicine. All authors and the institution, as well as department chair, Prof. Yoshiharu Ohno, agree to publication.