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Article History

Received: 9 February 2025

Accepted: 1 October 2025

First Online: 14 November 2025

<!--Emphasis Type='Bold' removed-->Declarations

:

: The protocol of this study was approved by the Institutional Review Board of the Ultrasound Department of National Traditional Chinese Medicine Hospital of Xiangxi Tujia and Miao Autonomous Prefecture. (date of approval, June 27, 2024, number 0012-22- NHR). The need for informed consent was waived by the Ultrasound Department of National Traditional Chinese Medicine Hospital of Xiangxi Tujia and Miao Autonomous Prefecture. The main basis for this decision is as follows: This study is a retrospective cohort analysis, and all the data collected are sourced from patients' routine clinical diagnosis and treatment records. No additional interventions will be carried out on patients during the data collection process. Moreover, the research process strictly adheres to ethical norms, and strict confidentiality measures are implemented for patients' personal information, minimizing potential impacts on patients' privacy and rights to the greatest extent possible. Our study adhered to the Declaration of Helsinki 

: Not Applicable.

: The authors declare no competing interests.