{"title":"Automated Penetration-aspiration Scale Scoring with Deep Learning","authors":"Seokjoon Hwang, Heebong Moon, Jinwoo Park","doi":"10.1016/j.apmr.2025.01.075","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>To develop a deep learning algorithm that can automatically analyze Penetration-aspiration scale (PAS) and present its accuracy.</div></div><div><h3>Design</h3><div>Analysis of retrospectively collected data.</div></div><div><h3>Setting</h3><div>Tertiary care hospital.</div></div><div><h3>Participants</h3><div>A total of 1039 videofluoroscopic swallowing study (VFSS) video clips.</div></div><div><h3>Interventions</h3><div>Two experienced rehabilitation physicians consensually assigned PAS scores for data coding. Regions of interest (ROI) were established in the oral and pharyngeal regions of the video and deep learning model was designed to automatically classify PAS. The structure of the model was to find ROIs using a convolutional neural network, which extracts visual features related to penetration and aspiration of ROIs and classifies them based on those features without any further manipulation of the video clips.</div></div><div><h3>Main Outcome Measures</h3><div>Predictive accuracy of the deep learning algorithm.</div></div><div><h3>Results</h3><div>Out of 1039 video clips, the frequencies for PAS 1 through 8 were, in order, 226, 145, 178, 37, 137, 15, 132, and 129. PAS 4 and 6 were excluded from training due to their low frequency, and 7 and 8 were combined as they were not discriminated in the videos. As a result, the classification accuracy was 76.09%, 42.31% 70.97%, 69.23%, and 75.00%, respectively, and the overall accuracy was 68.93%.</div></div><div><h3>Conclusions</h3><div>We have conducted research on using deep learning to automatically score PAS and have shown good results, although not high accuracy. In the future, we will need to train with more data sets to improve accuracy.</div></div><div><h3>Disclosures</h3><div>none.</div></div>","PeriodicalId":8313,"journal":{"name":"Archives of physical medicine and rehabilitation","volume":"106 4","pages":"Page e29"},"PeriodicalIF":3.6000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of physical medicine and rehabilitation","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003999325001017","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"REHABILITATION","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives
To develop a deep learning algorithm that can automatically analyze Penetration-aspiration scale (PAS) and present its accuracy.
Design
Analysis of retrospectively collected data.
Setting
Tertiary care hospital.
Participants
A total of 1039 videofluoroscopic swallowing study (VFSS) video clips.
Interventions
Two experienced rehabilitation physicians consensually assigned PAS scores for data coding. Regions of interest (ROI) were established in the oral and pharyngeal regions of the video and deep learning model was designed to automatically classify PAS. The structure of the model was to find ROIs using a convolutional neural network, which extracts visual features related to penetration and aspiration of ROIs and classifies them based on those features without any further manipulation of the video clips.
Main Outcome Measures
Predictive accuracy of the deep learning algorithm.
Results
Out of 1039 video clips, the frequencies for PAS 1 through 8 were, in order, 226, 145, 178, 37, 137, 15, 132, and 129. PAS 4 and 6 were excluded from training due to their low frequency, and 7 and 8 were combined as they were not discriminated in the videos. As a result, the classification accuracy was 76.09%, 42.31% 70.97%, 69.23%, and 75.00%, respectively, and the overall accuracy was 68.93%.
Conclusions
We have conducted research on using deep learning to automatically score PAS and have shown good results, although not high accuracy. In the future, we will need to train with more data sets to improve accuracy.
期刊介绍:
The Archives of Physical Medicine and Rehabilitation publishes original, peer-reviewed research and clinical reports on important trends and developments in physical medicine and rehabilitation and related fields. This international journal brings researchers and clinicians authoritative information on the therapeutic utilization of physical, behavioral and pharmaceutical agents in providing comprehensive care for individuals with chronic illness and disabilities.
Archives began publication in 1920, publishes monthly, and is the official journal of the American Congress of Rehabilitation Medicine. Its papers are cited more often than any other rehabilitation journal.