Medical Image Benchmarks

Medical image benchmarks provide datasets, annotations, and shared protocols for comparing systems on tasks such as segmentation, diagnosis, image synthesis, and report generation across modalities including CT, MRI, X-rays, ultrasound, and pathology. They evaluate methods ranging from U-Net and nnU-Net models to vision transformers, foundation models, and multimodal language models, using measures such as Dice, AUROC, calibration, and expert review. A central challenge is whether strong results transfer across patients, hospitals, scanners, populations, and difficult cases; external testing, patient-level splits, and audits for leakage and shortcuts help expose gaps hidden by average scores. The field is moving toward workflow-based and evidence-grounded evaluation, but there is still tension between standardized, easily comparable scores and measures that reflect clinical safety, uncertainty, and real-world usefulness.