Report summary

For University of California, San Diego Department of Radiology in 2015-2026, the graph shows 100 visible PIs and 341 internal PI collaborations. The dominant subject mix is Medicine as the leading field (50% of slots across 85 PIs; 85 labels), Radiology, Nuclear Medicine and Imaging as the leading subfield (16% of slots across 40 PIs; 40 labels), and Advanced MRI Techniques and Applications as the leading topic (7% of slots across 22 PIs; 22 labels). That is a healthy pattern, with enough links to reveal several interpretable groups rather than one undifferentiated component. The top weighted PIs are Rohit Loomba (185.9 weighted works; Liver Disease Diagnosis and Treatment, Liver Disease and Transplantation). The most visible ties are Jiang Du and Yajun Ma (132 shared works, weight 61.8). The standout breakdown groups are group 1 with 10 PIs, 9 internal connections, weight 109.6, around Cognitive Neuroscience, Radiology, Nuclear Medicine and Imaging, Genetics, led by Anders M. Dale, Carrie R. McDonald, Tyler M. Seibert; group 2 with 9 PIs, 18 internal connections, weight 408.2, around Radiology, Nuclear Medicine and Imaging, Orthopedics and Sports Medicine, Atomic and Molecular Physics, and Optics, led by Jiang Du, Yajun Ma, Saeed Jerban.