DeIDClinic: A Multi-Layered Framework for De-identification of Clinical Free-text Data

• URL: http://arxiv.org/abs/2410.01648v1
• Date: Wed, 2 Oct 2024 15:16:02 GMT
• Title: DeIDClinic: A Multi-Layered Framework for De-identification of Clinical Free-text Data
• Authors: Angel Paul, Dhivin Shaji, Lifeng Han, Warren Del-Pinto, Goran Nenadic,
• Abstract summary: This work enhances the MASK framework by integrating ClinicalBERT, a deep learning model specifically fine-tuned on clinical texts. The system effectively identifies and either redacts or replaces sensitive identifiable entities within clinical documents. A risk assessment feature has also been developed, which analyses the uniqueness of context within documents to classify them into risk levels.
• Score: 6.473402241020136
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: De-identification is important in protecting patients' privacy for healthcare text analytics. The MASK framework is one of the best on the de-identification shared task organised by n2c2/i2b2 challenges. This work enhances the MASK framework by integrating ClinicalBERT, a deep learning model specifically fine-tuned on clinical texts, alongside traditional de-identification methods like dictionary lookup and rule-based approaches. The system effectively identifies and either redacts or replaces sensitive identifiable entities within clinical documents, while also allowing users to customise the masked documents according to their specific needs. The integration of ClinicalBERT significantly improves the performance of entity recognition, achieving 0.9732 F1-score, especially for common entities such as names, dates, and locations. A risk assessment feature has also been developed, which analyses the uniqueness of context within documents to classify them into risk levels, guiding further de-identification efforts. While the system demonstrates strong overall performance, this work highlights areas for future improvement, including handling more complex entity occurrences and enhancing the system's adaptability to different clinical settings.

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