MOOSE v3 — Clinical

Version 3.1.5 · Licence Apache-2.0 · Released 2025-05-21

MOOSE CT offers focused segmentation tasks for CT research, including heart chambers, lung lobes, muscles, bones, and body composition.

Available tasks (10)

Task options define what the model does. Choose one when you submit a scan or configure generation.

Input: CT scan.
Output: Segmentation label map (.nii.gz).

Organs (19 structures)

Default

Abdominal and thoracic organs: adrenal glands, bladder, brain, gallbladder, kidneys, liver, lung lobes, pancreas, spleen, stomach, thyroid lobes, trachea.

View 19 output classes

1 adrenal_gland_left2 adrenal_gland_right3 bladder4 brain5 gallbladder6 kidney_left7 kidney_right8 liver9 lung_lower_lobe_left10 lung_lower_lobe_right11 lung_middle_lobe_right12 lung_upper_lobe_left13 lung_upper_lobe_right14 pancreas15 spleen16 stomach17 thyroid_left18 thyroid_right19 trachea

Body outline

Coarse body partitioning: legs, trunk, head, arms.

View 4 output classes

1 legs2 body3 head4 arms

Cardiac & great vessels

Heart chambers, myocardium, and major thoracic/abdominal vessels.

View 13 output classes

1 heart_myocardium2 heart_atrium_left3 heart_atrium_right4 heart_ventricle_left5 heart_ventricle_right6 aorta7 iliac_artery_left8 iliac_artery_right9 iliac_vena_left10 iliac_vena_right11 inferior_vena_cava12 portal_splenic_vein13 pulmonary_artery

Digestive tract

Colon, duodenum, esophagus, small bowel.

View 4 output classes

1 colon2 duodenum3 esophagus4 small_bowel

Lung lobes

Per-lobe lung segmentation.

View 5 output classes

1 lung_upper_lobe_left2 lung_lower_lobe_left3 lung_upper_lobe_right4 lung_middle_lobe_right5 lung_lower_lobe_right

Trunk & hip muscles

Autochthon, gluteus maximus / medius / minimus, iliopsoas (left and right).

View 10 output classes

1 autochthon_left2 autochthon_right3 gluteus_maximus_left4 gluteus_maximus_right5 gluteus_medius_left6 gluteus_medius_right7 gluteus_minimus_left8 gluteus_minimus_right9 iliopsoas_left10 iliopsoas_right

Peripheral bones (31 structures)

Limb and skull bones: carpals, clavicles, femur, fibula, fingers, humerus, metacarpals, metatarsals, patella, radius, scapula, skull, tarsals, tibia, toes, ulna.

View 31 output classes

1 carpal_left2 carpal_right3 clavicle_left4 clavicle_right5 femur_left6 femur_right7 fibula_left8 fibula_right9 fingers_left10 fingers_right11 humerus_left12 humerus_right13 metacarpal_left14 metacarpal_right15 metatarsal_left16 metatarsal_right17 patella_left18 patella_right19 radius_left20 radius_right21 scapula_left22 scapula_right23 skull24 tarsal_left25 tarsal_right26 tibia_left27 tibia_right28 toes_left29 toes_right30 ulna_left31 ulna_right

Ribs & sternum

Individual ribs 1–13 (left and right) and sternum.

View 27 output classes

1 rib_left_12 rib_left_23 rib_left_34 rib_left_45 rib_left_56 rib_left_67 rib_left_78 rib_left_89 rib_left_910 rib_left_1011 rib_left_1112 rib_left_1213 rib_left_1314 rib_right_115 rib_right_216 rib_right_317 rib_right_418 rib_right_519 rib_right_620 rib_right_721 rib_right_822 rib_right_923 rib_right_1024 rib_right_1125 rib_right_1226 rib_right_1327 sternum

Vertebrae & pelvis

Individual vertebrae C1–L6 plus sacrum and hip bones.

View 28 output classes

1 vertebra_C12 vertebra_C23 vertebra_C34 vertebra_C45 vertebra_C56 vertebra_C67 vertebra_C78 vertebra_T19 vertebra_T210 vertebra_T311 vertebra_T412 vertebra_T513 vertebra_T614 vertebra_T715 vertebra_T816 vertebra_T917 vertebra_T1018 vertebra_T1119 vertebra_T1220 vertebra_L121 vertebra_L222 vertebra_L323 vertebra_L424 vertebra_L525 vertebra_L626 hip_left27 hip_right28 sacrum

Body composition

Skeletal muscle, subcutaneous fat, visceral fat — typically run on an L3 slice for body-composition analysis.

View 3 output classes

1 skeletal_muscle2 subcutaneous_fat3 visceral_fat

Research details

Training data

MOOSE 3.0 clinical models (ENHANCE-PET / Shiyam Sundar et al.), trained on multi-centre clinical CT (and PET/CT) cohorts with expert-reviewed labels across digestive, lung, rib, peripheral-bone and other tissue groups. Adult human anatomy.

Intended use

Research, tissue-group-specific segmentation of clinical CT for systemic/whole-body analysis and PET/CT quantification workflows. Not a diagnostic device.

Known limitations

Tuned to clinical-CT appearance; degrades on non-clinical protocols, strong artefact, paediatric anatomy, and tissue groups outside the selected task. Group-specific models must be matched to the anatomy actually in the field of view.

Species

human

Citations & references

Citing Nalvera.AI

Please cite the platform alongside the model's own paper listed above — the model authors deserve the credit for the method.

@misc{nalvera,
  title        = {Nalvera.AI: a cloud platform for medical-imaging AI},
  author       = {{van der Heyden, Brent}},
  year         = {2026},
  howpublished = {\url{https://nalvera.ai}},
  note         = {Model: MOOSE v3 — Clinical v3.1.5. Accessed YYYY-MM-DD}
}

Research use only — not a medical device. Outputs are not validated for clinical diagnosis or treatment.

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