First Affiliated Hospital of Wenzhou Medical University

The objective of this observational study is to investigate and validate the utility of high-frame-rate ultrasound imaging technology for dynamic observation of the blood perfusion process at the site of ulcer wounds in real-time, focusing on patients with Diabetic Foot Ulcers (DFU). The primary research questions it seeks to address are as follows:
* What are the dynamic characteristics of vascular dynamics at the site of ulcer wounds in patients with DFU under high-frame-rate ultrasound imaging?
* Is High-Frequency Contrast-Enhanced Ultrasound (H-CEUS) technology feasible for effectively visualizing the microcirculation of ulcer wounds in patients with DFU? Participants will Undergo high-frame-rate ultrasound imaging for real-time observation of blood perfusion dynamics at the site of ulcer wounds.
Researchers will compare ulcerated sites with normal sites to see whether the use of High-Frequency Contrast-Enhanced Ultrasound (H-CEUS) has any discernible impact on the visualization of microcirculation in ulcer wounds.

The investigators carried out a multi-center comparative study, involving hospitals including the Second Affiliated Hospital of Zhejiang University School of Medicine, Peking Union Medical College Hospital, West China Hospital, Wenzhou First Hospital, and Li Huili Hospital. This study aimed to compare the efficacy of medication and surgery for specific subtypes of microadenomas and clearly defined macroadenomas (Knosp grades 0-2), in order to determine which is more effective and which has fewer benefits, thereby enhancing the evidence base.

This is a multicenter, randomized, double-blind, active-controlled dose-finding study. About 180 subjects who receive a high emetic chemotherapy are planned to be enrolled and randomized into three groups by a ratio of 1:1:1.