Whole body CT segmentation

One pass of NV-Segment-CT outlines 117 structures on a CT scan: abdominal organs, the heart and major vessels, the lung lobes, every vertebra and rib, other bones, the spinal cord, and the trunk and hip muscles. NVIDIA published the model as VISTA3D. Research groups use this whole body CT segmentation to compare volumes between groups and to set its outlines beside those of other whole-body tools. On PET or SPECT, it gives SUV per structure, with one structure such as the liver as a reference region for the rest.

Find answers to research questions like: How do organ, bone, and vessel volumes differ between groups? Do different whole-body tools give the same volume for the same structure? Which structures change in uptake between two scan dates?

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Axial slice of neck to thigh CT, outlined: Esophagus, Left lung upper lobe, Right lung upper lobe, Vertebrae T4, Vertebrae T3, Vertebrae T2, Trachea, Left rib 1, Left rib 2, Left rib 3, and 20 more — Axial

Sagittal slice of neck to thigh CT, outlined: Liver, Pancreas, Aorta, Inferior vena cava, Esophagus, Stomach, Duodenum, Bladder, Portal vein and splenic vein, Small bowel, and 46 more — Sagittal

Coronal slice of neck to thigh CT, outlined: Liver, Spleen, Pancreas, Right kidney, Aorta, Right adrenal gland, Left adrenal gland, Esophagus, Stomach, Left kidney, and 63 more — Coronal

Found in this example

Liver
Spleen
Pancreas
Right kidney
Aorta
Inferior vena cava
Right adrenal gland
Left adrenal gland
Esophagus
Stomach
Duodenum
Left kidney
Bladder
Portal vein and splenic vein
Small bowel
Left lung upper lobe
Left lung lower lobe
Right lung upper lobe
Right lung middle lobe
Right lung lower lobe
Vertebrae L5
Vertebrae L4
Vertebrae L3
Vertebrae L2
Vertebrae L1
Vertebrae T12
Vertebrae T11
Vertebrae T10
Vertebrae T9
Vertebrae T8
Vertebrae T7
Vertebrae T6
Vertebrae T5
Vertebrae T4
Vertebrae T3
Vertebrae T2
Vertebrae T1
Vertebrae C7
Vertebrae C6
Vertebrae C5
Trachea
Left iliac artery
Right iliac artery
Left iliac vena
Right iliac vena
Colon
Left rib 1
Left rib 2
Left rib 3
Left rib 4
Left rib 5
Left rib 6
Left rib 7
Left rib 8
Left rib 9
Left rib 10
Right rib 1
Right rib 2
Right rib 3
Right rib 4
Right rib 5
Right rib 6
Right rib 7
Right rib 8
Right rib 9
Right rib 10
Right rib 11
Left humerus
Right humerus
Left scapula
Right scapula
Left clavicula
Right clavicula
Left femur
Right femur
Left hip
Right hip
Sacrum
Left gluteus medius
Right gluteus medius
Left gluteus minimus
Right gluteus minimus
Left autochthon
Right autochthon
Left iliopsoas
Right iliopsoas
Brachiocephalic trunk
Left brachiocephalic vein
Right brachiocephalic vein
Left common carotid artery
Right common carotid artery
Costal cartilages
Heart
Right kidney cyst
Prostate
Pulmonary vein
Skull
Spinal cord
Sternum
Left subclavian artery
Right subclavian artery
Superior vena cava
Thyroid gland
Vertebrae S1
Gallbladder
Brain
Left rib 11
Left rib 12
Right rib 12
Left gluteus maximus
Right gluteus maximus
Left atrial appendage

Also finds: Vertebrae C4, Vertebrae C3, Vertebrae C2, Vertebrae C1, Left kidney cyst

Example scan: neck to thigh CT, TotalSegmentator dataset