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[EMNLP 2024] RaTEScore: A Metric for Radiology Report Generation

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<h1><img src="figure/logo.png" alt="logo" style="height:65px; vertical-align: middle;margin-bottom: -10px;"> RaTEScore</h1>

[EMNLP 2024] RaTEScore: A Metric for Radiology Report Generation

## Overview

RaTEScore is a novel, entity-aware metric to assess the quality of medical reports generated by AI models. It emphasizes crucial medical entities such as diagnostic outcomes and anatomical details, and is robust against complex medical synonyms and sensitive to negation expressions. The evaluations demonstrate that RaTEScore aligns more closely with human preference than existing metrics.

Here is an illustration of the Computation of RaTEScore.

![](https://raw.githubusercontent.com/MAGIC-AI4Med/RaTEScore/main/figure/model.png)

For more detailed about our pipeline, please refer to our [paper](https://aclanthology.org/2024.emnlp-main.836.pdf).

## Installation

### Environment Preparation
```
pip install RaTEScore
```

Please note that the code in the Python repository may undergo debugging and updates. We kindly remind you to specify the version of RaTEScore you are using to ensure fair comparisons and reproducibility.

## Usage

```python
from RaTEScore import RaTEScore

pred_report = ['There are no intracranial hemorrhages.',
              'The musculature and soft tissues are intact.']

gt_report = ['There is no finding to suggest intracranial hemorrhage.',
            'The muscle compartments are intact.']

assert len(pred_report) == len(gt_report)

ratescore = RaTEScore()
# Add visualization_path here if you want to save the visualization result
# ratescore = RaTEScore(visualization_path = '', , affinity_matrix='short') # affinity_matrix='long' for long paragraph evaluation

scores = ratescore.compute_score(pred_report, gt_report)
```

## RaTE-NER

RaTE-NER dataset is a large-scale, radiological named entity recognition (NER) dataset. We set up this dataset to serve our Medical Entity Recognition module of our proposed metric. To download or find out more about our dataset, please refer to [Hugginface](https://huggingface.co/datasets/Angelakeke/RaTE-NER) and our [paper](https://aclanthology.org/2024.emnlp-main.836.pdf).

## RaTE-Eval

To effectively measure the alignment between automatic evaluation metrics and radiologists' assessments in medical text generation tasks, we have established a comprehensive benchmark, RaTE-Eval, that encompasses three tasks:

- Sentences-level Human Rating.
- Paragraph-level Human Rating.
- Rating on the Synthetic Reports.

To download or find out more about our dataset, please refer to [Hugginface](https://huggingface.co/datasets/Angelakeke/RaTE-Eval) and our [paper](https://arxiv.org/pdf/2406.16845).

## Default Scheme

For **Medical Entity Recognition module**, we default to use our [NER model](https://huggingface.co/Angelakeke/RaTE-NER-Deberta) which is fine-tuned version of DeBERTa on the [RaTE-NER](https://huggingface.co/datasets/Angelakeke/RaTE-NER) dataset. It is based on the IOB scheme.

For **Synonym Disambiguation Encoding module**, we default to utilize [BioLORD-2023-C](https://huggingface.co/FremyCompany/BioLORD-2023-C). We have discussed this part in our paper. You can also change this to other pretrained bert models.

## Contact
If you have any questions, please feel free to contact zwk0629@sjtu.edu.cn.

## Citation
```bibtex
@inproceedings{zhao2024ratescore,
  title={RaTEScore: A Metric for Radiology Report Generation},
  author={Zhao, Weike and Wu, Chaoyi and Zhang, Xiaoman and Zhang, Ya and Wang, Yanfeng and Xie, Weidi},
  booktitle={Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing},
  pages={15004--15019},
  year={2024}
}
```

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