MedOtter/isles2022
ISLES 2022 Dataset Dataset Description The ISLES 2022 dataset for ischemic stroke lesion segmentation. This dataset contains MRI (ADC, DWI) scans with dense segmentation annotations. Dataset Details Modality: MRI (ADC, DWI) Target: stroke lesion Format: NIfTI (.nii.gz) Dataset Structure Each sample in the JSONL file contains: { "image": "path/to/image.nii.gz", "mask": "path/to/mask.nii.gz", "label": ["organ1", "organ2", ...]… See the full description on the dataset page: https://huggingface.co/datasets/MedOtter/isles2022.
ISLES 2022 Dataset
Dataset Description
The ISLES 2022 dataset for ischemic stroke lesion segmentation. This dataset contains MRI (ADC, DWI) scans with dense segmentation annotations.
Dataset Details
- Modality: MRI (ADC, DWI)
- Target: stroke lesion
- Format: NIfTI (.nii.gz)
Dataset Structure
Each sample in the JSONL file contains:
{
"image": "path/to/image.nii.gz",
"mask": "path/to/mask.nii.gz",
"label": ["organ1", "organ2", ...],
"modality": "MRI",
"dataset": "ISLES2022",
"official_split": "train",
"patient_id": "patient_id"
}Usage
Load Metadata
from datasets import load_dataset
# Load the dataset
ds = load_dataset("Angelou0516/isles2022")
# Access a sample
sample = ds['train'][0]
print(f"Patient ID: {sample['patient_id']}")
print(f"Image: {sample['image']}")
print(f"Mask: {sample['mask']}")
print(f"Labels: {sample['label']}")Load Images
from huggingface_hub import snapshot_download
import nibabel as nib
import os
# Download the full dataset
local_path = snapshot_download(
repo_id="Angelou0516/isles2022",
repo_type="dataset"
)
# Load a sample
sample = ds['train'][0]
image = nib.load(os.path.join(local_path, sample['image']))
mask = nib.load(os.path.join(local_path, sample['mask']))
# Get numpy arrays
image_data = image.get_fdata()
mask_data = mask.get_fdata()
print(f"Image shape: {image_data.shape}")
print(f"Mask shape: {mask_data.shape}")Citation
@article{isles2022,
title={ISLES 2022: Ischemic Stroke Lesion Segmentation Challenge},
year={2023}
}License
CC-BY-4.0
Dataset Homepage
https://isles22.grand-challenge.org/
