Li Yundong, Chief Physician, Visiting Expert, Deputy Director of Department of Radiology (responsible for interventional catheterization lab). Over 40 years of experience in radiology at First Affiliated Hospital of Henan University of Science and Technology, recognized as an outstanding hospital expert. Skilled in special radiographic and contrast techniques, and radiological diagnosis and differential diagnosis of multisystem diseases. Engaged in interventional radiology since 1990, accumulating extensive clinical experience in vascular and non-vascular interventional surgeries. Qualified in peripheral vascular and comprehensive interventional radiology. Awarded 2 utility patents; Second Prize in Scientific Research Achievement by Henan Provincial Science and Technology Commission. Published over 50 professional papers, authored and co-authored 5 monographs.