A novel rotation method with variable-angle anterior probe for correcting the depth of the kidney to optimize renal dynamic imaging.

"Declarations Ethics approval and consent to participateThis study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the First Hospital of Shanxi Medical University (clinical trial number: 2021BAL0146). Informed consent was obtained from all individual participants included in the study. Consent for publicationAll authors read and approved the final version of the article. Competing interestsBeijing Novel Medical Equipment Ltd. had a patent application for rotation method. No other potential conflict of interest relevant to this article was reported. Competing interests Beijing Novel Medical Equipment Ltd. had a patent application for rotation method. No other potential conflict of interest relevant to this article was reported."

"Funding This work was supported by the Basic Research Program Fund of Shanxi Province (No. 20210302123240)."

"Trial registration Medical Ethics Committee of First Hospital of Shanxi Medical University, 2021BAL0146. Registered 12 January 2021."