Diagnosis of Sarcopenia Using Convolutional Neural Network Models Based on Muscle Ultrasound Images: Prospective Multicenter Study

Zi-Tong Chen   ¹ , MD ;   Xiao-Long Li   ¹ , MD, PhD ;   Feng-Shan Jin   ^{2, 3, 4} , MD ;   Yi-Lei Shi   ⁵ , PhD ;   Lei Zhang   ⁵ , PhD ;   Hao-Hao Yin   ¹ , MD, PhD ;   Yu-Li Zhu   ¹ , MD, PhD ;   Xin-Yi Tang   ⁶ , MD, PhD ;   Xi-Yuan Lin   ¹ , MD ;   Bei-Lei Lu   ¹ , MD, PhD ;   Qun Wang   ¹ , MD ;   Li-Ping Sun   ^{2, 3, 4} , MD, PhD ;   Xiao-Xiang Zhu   ⁷ , PhD ;   Li Qiu   ^{6 *} , MD, PhD ;   Hui-Xiong Xu   ^{1 *} , MD, PhD ;   Le-Hang Guo   ^{2, 3, 4 *} , MD, PhD

¹ Department of Ultrasound, Zhongshan Hospital, Institute of Ultrasound in Medicine and Engineering, Fudan University, Shanghai, China

² Department of Medical Ultrasound, Shanghai Tenth People’s Hospital, Shanghai, China

³ Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai, China

⁴ Shanghai Engineering Research Center of Ultrasound Diagnosis and Treatment, Shanghai, China

⁵ MedAI Technology (Wuxi) Co, Ltd, Wuxi, China

⁶ Department of Medical Ultrasound, West China Hospital of Sichuan University, Chengdu, China

⁷ Chair of Data Science in Earth Observation, Technical University of Munich, Munich, Germany

*these authors contributed equally