Initial release

.gitattributes

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 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+CT-RATE-AB-train.json filter=lfs diff=lfs merge=lfs -text

CT-RATE-AB-train.json

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+version https://git-lfs.github.com/spec/v1
+oid sha256:77b9e1f688f080e3e68de597b017d00dc96cdbb23e52c310fee545aab9ebb636
+size 47410994

README.md

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 ---
 license: cc-by-nc-sa-4.0
+task_categories:
+- visual-question-answering
+- video-text-to-text
+language:
+- en
+tags:
+- medical
+- chest-ct
+- radiology
+- ct-rate
+size_categories:
+- 10K<n<100K
+pretty_name: CT-RATE-AB
 ---
+
+# CT-RATE-AB
+
+Vision-language annotations for chest CT abnormality reporting, derived from
+[CT-RATE](https://huggingface.co/datasets/ibrahimhamamci/CT-RATE) and
+formatted in the LLaVA conversation schema.
+
+> ⚠️ Research use only. Not a medical device. Do not use for clinical decisions.
+
+## Files
+
+| File | # Samples |
+|------|-----------|
+| `CT-RATE-AB-train.json` | 46,709 |
+| `CT-RATE-AB-valid.json` | 3,039  |
+
+Train/valid splits inherit the official CT-RATE partition (no patient overlap).
+
+## Data format
+
+LLaVA video-conversation schema. Each entry:
+
+```json
+{
+  "id": "train_1_a_1",
+  "videos": ["train_1_a_1.mp4"],
+  "conversations": [
+    {"from": "human", "value": "<video>\nGenerate a report for this patient."},
+    {"from": "gpt",   "value": "Lung: ...\n\nTrachea and Bronchie: ...\n\nMediastinum: ...\n\nBone: ...\n\nAbdomen: ...\n\nOthers: ..."}
+  ]
+}
+```
+
+The assistant response is a structured report organized by anatomy:
+*Lung*, *Trachea and Bronchie*, *Mediastinum*, *Bone*, *Abdomen*, *Others*.
+
+## Obtaining the CT volumes
+
+This repository contains **only annotations**. To obtain the corresponding CT
+data, request access to CT-RATE at
+<https://huggingface.co/datasets/ibrahimhamamci/CT-RATE>. The `id` field in
+each entry maps directly to the CT-RATE volume identifier.
+
+## License
+
+Released under **CC BY-NC-SA 4.0**, consistent with the upstream CT-RATE
+license.
+
+## Citation
+
+**CT-RATE-AB (MICCAI 2026):**
+```bibtex
+@inproceedings{TODO_ctrateab2026,
+  title     = {TODO},
+  author    = {TODO},
+  booktitle = {MICCAI},
+  year      = {2026}
+}
+```
+
+**CT-RATE (upstream):**
+```bibtex
+@article{hamamci2026generalist,
+  title   = {Generalist foundation models from a multimodal dataset for 3D
+             computed tomography},
+  author  = {Hamamci, Ibrahim Ethem and others},
+  journal = {Nature Biomedical Engineering},
+  year    = {2026}
+}
+```