A fused spine + pelvis 3D CT segmentation dataset built for one job the common
tools get wrong: numbering the lumbar spine correctly in patients with a
lumbosacral transitional vertebra (LSTV). Built by patient-level crosswalk
between three public sources:
TCIA CT COLONOGRAPHY — DICOM CT volumes (prone + supine per patient)
CTSpine1K (COLONOG subset) — VerSe-convention vertebral label masks
CTPelvic1K dataset2 — sacrum + bilateral hip label masks
