De-identified HRCT Dataset with Airway, Lobe, and Segment Annotations

This dataset contains two de-identified HRCT volumes in NRRD format:one normal case and one patient case. Each case includes:- The original CT volume (main.nrrd)- Segmental airway annotations- Pulmonary lobe segmentations- Anatomical pulmonary segment annotations All data were converted from DICOM to NRRD and fully de-identified.All personal and institutional metadata were removed.Only technical metadata required for image geometry and segmentation structure were preserved. The dataset is intended for research in medical image analysis,particularly pulmonary segment delineation and airway analysis studies.