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# Data Directory
This folder is for local development data only. The primary data source is HuggingFace.
## Data Source
**Primary**: [hugging-science/isles24-stroke](https://huggingface.co/datasets/hugging-science/isles24-stroke)
The dataset is automatically downloaded and cached by HuggingFace when you run:
```python
from stroke_deepisles_demo.data import load_isles_dataset
# Loads from HuggingFace (default)
dataset = load_isles_dataset()
# Access cases
case = dataset.get_case(0) # or dataset.get_case("sub-stroke0001")
```
## HuggingFace Cache Location
Data is cached at: `~/.cache/huggingface/datasets/hugging-science___isles24-stroke/`
## Dataset Contents
149 acute ischemic stroke cases with:
- **Imaging**: DWI, ADC, CT, CTA, perfusion maps (tmax, mtt, cbf, cbv)
- **Masks**: lesion_mask, lvo_mask, cow_segmentation
- **Clinical**: age, sex, nihss_admission, mrs_admission, mrs_3month
## Local Development (Optional)
For offline development, you can still use a local directory:
```python
dataset = load_isles_dataset("path/to/local/data", local_mode=True)
```
Expected structure for local mode:
```text
data/
├── Images-DWI/ # DWI volumes
├── Images-ADC/ # ADC maps
└── Masks/ # Ground truth lesion masks
```
## Notes
- All data files are gitignored
- On HuggingFace Spaces, data loads automatically from the HF cache
- See dataset card for citation requirements
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