Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI

Abstract Occupation ratio and fatty infiltration are important parameters for evaluating patients with rotator cuff tears. We analyzed the occupation ratio using a deep-learning framework and studied the fatty infiltration of the supraspinatus muscle using an automated region-based Otsu thresholding...

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Autores principales:	Kyunghan Ro, Joo Young Kim, Heeseol Park, Baek Hwan Cho, In Young Kim, Seung Bo Shim, In Young Choi, Jae Chul Yoo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8d0e65adf73a4881bc05fac5c76e31db
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spelling	oai:doaj.org-article:8d0e65adf73a4881bc05fac5c76e31db2021-12-02T16:26:23ZDeep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI10.1038/s41598-021-93026-w2045-2322https://doaj.org/article/8d0e65adf73a4881bc05fac5c76e31db2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93026-whttps://doaj.org/toc/2045-2322Abstract Occupation ratio and fatty infiltration are important parameters for evaluating patients with rotator cuff tears. We analyzed the occupation ratio using a deep-learning framework and studied the fatty infiltration of the supraspinatus muscle using an automated region-based Otsu thresholding technique. To calculate the amount of fatty infiltration of the supraspinatus muscle using an automated region-based Otsu thresholding technique. The mean Dice similarity coefficient, accuracy, sensitivity, specificity, and relative area difference for the segmented lesion, measuring the similarity of clinician assessment and that of a deep neural network, were 0.97, 99.84, 96.89, 99.92, and 0.07, respectively, for the supraspinatus fossa and 0.94, 99.89, 93.34, 99.95, and 2.03, respectively, for the supraspinatus muscle. The fatty infiltration measure using the Otsu thresholding method significantly differed among the Goutallier grades (Grade 0; 0.06, Grade 1; 4.68, Grade 2; 20.10, Grade 3; 42.86, Grade 4; 55.79, p < 0.0001). The occupation ratio and fatty infiltration using Otsu thresholding demonstrated a moderate negative correlation (ρ = − 0.75, p < 0.0001). This study included 240 randomly selected patients who underwent shoulder magnetic resonance imaging (MRI) from January 2015 to December 2016. We used a fully convolutional deep-learning algorithm to quantitatively detect the fossa and muscle regions by measuring the occupation ratio of the supraspinatus muscle. Fatty infiltration was objectively evaluated using the Otsu thresholding method. The proposed convolutional neural network exhibited fast and accurate segmentation of the supraspinatus muscle and fossa from shoulder MRI, allowing automatic calculation of the occupation ratio. Quantitative evaluation using a modified Otsu thresholding method can be used to calculate the proportion of fatty infiltration in the supraspinatus muscle. We expect that this will improve the efficiency and objectivity of diagnoses by quantifying the index used for shoulder MRI.Kyunghan RoJoo Young KimHeeseol ParkBaek Hwan ChoIn Young KimSeung Bo ShimIn Young ChoiJae Chul YooNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kyunghan Ro Joo Young Kim Heeseol Park Baek Hwan Cho In Young Kim Seung Bo Shim In Young Choi Jae Chul Yoo Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
description	Abstract Occupation ratio and fatty infiltration are important parameters for evaluating patients with rotator cuff tears. We analyzed the occupation ratio using a deep-learning framework and studied the fatty infiltration of the supraspinatus muscle using an automated region-based Otsu thresholding technique. To calculate the amount of fatty infiltration of the supraspinatus muscle using an automated region-based Otsu thresholding technique. The mean Dice similarity coefficient, accuracy, sensitivity, specificity, and relative area difference for the segmented lesion, measuring the similarity of clinician assessment and that of a deep neural network, were 0.97, 99.84, 96.89, 99.92, and 0.07, respectively, for the supraspinatus fossa and 0.94, 99.89, 93.34, 99.95, and 2.03, respectively, for the supraspinatus muscle. The fatty infiltration measure using the Otsu thresholding method significantly differed among the Goutallier grades (Grade 0; 0.06, Grade 1; 4.68, Grade 2; 20.10, Grade 3; 42.86, Grade 4; 55.79, p < 0.0001). The occupation ratio and fatty infiltration using Otsu thresholding demonstrated a moderate negative correlation (ρ = − 0.75, p < 0.0001). This study included 240 randomly selected patients who underwent shoulder magnetic resonance imaging (MRI) from January 2015 to December 2016. We used a fully convolutional deep-learning algorithm to quantitatively detect the fossa and muscle regions by measuring the occupation ratio of the supraspinatus muscle. Fatty infiltration was objectively evaluated using the Otsu thresholding method. The proposed convolutional neural network exhibited fast and accurate segmentation of the supraspinatus muscle and fossa from shoulder MRI, allowing automatic calculation of the occupation ratio. Quantitative evaluation using a modified Otsu thresholding method can be used to calculate the proportion of fatty infiltration in the supraspinatus muscle. We expect that this will improve the efficiency and objectivity of diagnoses by quantifying the index used for shoulder MRI.
format	article
author	Kyunghan Ro Joo Young Kim Heeseol Park Baek Hwan Cho In Young Kim Seung Bo Shim In Young Choi Jae Chul Yoo
author_facet	Kyunghan Ro Joo Young Kim Heeseol Park Baek Hwan Cho In Young Kim Seung Bo Shim In Young Choi Jae Chul Yoo
author_sort	Kyunghan Ro
title	Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
title_short	Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
title_full	Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
title_fullStr	Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
title_full_unstemmed	Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI
title_sort	deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in mri
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8d0e65adf73a4881bc05fac5c76e31db
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Deep-learning framework and computer assisted fatty infiltration analysis for the supraspinatus muscle in MRI

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