Using Segment Anything Model 2 for Zero-Shot 3D Segmentation of Abdominal Organs in Computed Tomography Scans to Adapt Video Tracking Capabilities for 3D Medical Imaging: Algorithm Development and Validation

Yosuke Yamagishi   ¹ , MD, MSc ;   Shouhei Hanaoka   ^{1, 2} , MD, PhD ;   Tomohiro Kikuchi   ^{3, 4} , MD, MPH, PhD ;   Takahiro Nakao   ⁴ , MD, PhD ;   Yuta Nakamura   ⁴ , MD, PhD ;   Yukihiro Nomura   ^{4, 5} , PhD ;   Soichiro Miki   ⁴ , MD, PhD ;   Takeharu Yoshikawa   ⁴ , MD, PhD ;   Osamu Abe   ^{1, 2} , MD, PhD

¹ Division of Radiology and Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan

² Department of Radiology, The University of Tokyo Hospital, Tokyo, Japan

³ Department of Radiology, School of Medicine, Jichi Medical University, Shimotsuke, Japan

⁴ Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, Tokyo, Japan

⁵ Center for Frontier Medical Engineering, Chiba University, Chiba, Japan