Use of natural language processing to extract and classify papillary thyroid cancer features from surgical pathology reports

• URL: http://arxiv.org/abs/2406.00015v1
• Date: Wed, 22 May 2024 22:27:12 GMT
• Title: Use of natural language processing to extract and classify papillary thyroid cancer features from surgical pathology reports
• Authors: Ricardo Loor-Torres, Yuqi Wu, Esteban Cabezas, Mariana Borras, David Toro-Tobon, Mayra Duran, Misk Al Zahidy, Maria Mateo Chavez, Cristian Soto Jacome, Jungwei W. Fan, Naykky M. Singh Ospina, Yonghui Wu, Juan P. Brito,
• Abstract summary: We analyzed 1,410 surgical pathology reports from adult papillary thyroid cancer patients at Mayo Clinic, Rochester, MN. We developed ThyroPath, a rule-based NLP pipeline, to extract and classify thyroid cancer features into risk categories.
• Score: 9.200141008020484
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Background We aim to use Natural Language Processing (NLP) to automate the extraction and classification of thyroid cancer risk factors from pathology reports. Methods We analyzed 1,410 surgical pathology reports from adult papillary thyroid cancer patients at Mayo Clinic, Rochester, MN, from 2010 to 2019. Structured and non-structured reports were used to create a consensus-based ground truth dictionary and categorized them into modified recurrence risk levels. Non-structured reports were narrative, while structured reports followed standardized formats. We then developed ThyroPath, a rule-based NLP pipeline, to extract and classify thyroid cancer features into risk categories. Training involved 225 reports (150 structured, 75 unstructured), with testing on 170 reports (120 structured, 50 unstructured) for evaluation. The pipeline's performance was assessed using both strict and lenient criteria for accuracy, precision, recall, and F1-score. Results In extraction tasks, ThyroPath achieved overall strict F-1 scores of 93% for structured reports and 90 for unstructured reports, covering 18 thyroid cancer pathology features. In classification tasks, ThyroPath-extracted information demonstrated an overall accuracy of 93% in categorizing reports based on their corresponding guideline-based risk of recurrence: 76.9% for high-risk, 86.8% for intermediate risk, and 100% for both low and very low-risk cases. However, ThyroPath achieved 100% accuracy across all thyroid cancer risk categories with human-extracted pathology information. Conclusions ThyroPath shows promise in automating the extraction and risk recurrence classification of thyroid pathology reports at large scale. It offers a solution to laborious manual reviews and advancing virtual registries. However, it requires further validation before implementation.

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