CT Lymph Nodes (Roth et al., NIH) 176 chest + abdomen CT scans with manually traced voxel wise mediastinal and abdominal lymph node segmentations. The collection underpins the Roth 2014 detection benchmark and Seff 2015 segmentation benchmark, and remains a widely cited reference for thoracic abdominal lymph node CADe work. Dataset Details Field Value Modality CT Body part Mediastinum + Abdomen Task 3D binary segmentation (foreground = lymph nodes) Patients 176 (90 mediastinal + 86 abdominal) Studies 176 CT series 176 SEG series (V5 DICOM SEG) 176 (one per patient) NIfTI masks (V4) 176 (one per patient, in supplementary/MED ABD LYMPH MASKS.zip ) Images (slices) 110,179 CT DICOM slices Annotated nodes 983 (388 mediastinal + 595 abdominal) Format DICOM (CT, DICOM SEG) + NIfTI (legacy masks) License CC BY 3.0 Anatomical Subsets The collection is partitioned by anatomical region (no ML train/val/test split is prescribed). Patient ID prefix encodes the subset: Subset Patients Annotated nodes Measurement convention MED LYMPH 90 388 Shortest axis only (RECIST) ABD LYMPH 86 595 Longest + shortest axis (axial view) Mask Sources The collection ships three companion annotation archives. MASKS…
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