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Quantitative ultrasound assessment of fatty infiltration of the rotator cuff muscles using backscatter coefficient

Background To prospectively evaluate ultrasound backscatter coefficients (BSCs) of the supraspinatus and infraspinatus muscles and compare with Goutallier classification on magnetic resonance imaging (MRI). Methods Fifty-six participants had shoulder MRI exams and ultrasound exams of the supraspinat...

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Published in:European radiology experimental 2024-10, Vol.8 (1), p.119-9, Article 119
Main Authors: Toto-Brocchi, Marco, Wu, Yuanshan, Jerban, Saeed, Han, Aiguo, Andre, Michael, Shah, Sameer B., Chang, Eric Y.
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description Background To prospectively evaluate ultrasound backscatter coefficients (BSCs) of the supraspinatus and infraspinatus muscles and compare with Goutallier classification on magnetic resonance imaging (MRI). Methods Fifty-six participants had shoulder MRI exams and ultrasound exams of the supraspinatus and infraspinatus muscles. Goutallier MRI grades were determined and BSCs were measured. Group means were compared and the strength of relationships between the measures were determined. Using binarized Goutallier groups (0–2 versus 3–4), areas under the receiver operating characteristic curves (AUROCs) were calculated. The nearest integer cutoff value was determined using Youden’s index. Results BSC values were significantly different among most Goutallier grades for the supraspinatus and infraspinatus muscles (both p  
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Methods Fifty-six participants had shoulder MRI exams and ultrasound exams of the supraspinatus and infraspinatus muscles. Goutallier MRI grades were determined and BSCs were measured. Group means were compared and the strength of relationships between the measures were determined. Using binarized Goutallier groups (0–2 versus 3–4), areas under the receiver operating characteristic curves (AUROCs) were calculated. The nearest integer cutoff value was determined using Youden’s index. Results BSC values were significantly different among most Goutallier grades for the supraspinatus and infraspinatus muscles (both p  &lt; 0.001). Strong correlations were found between the BSC values and Goutallier grades for the supraspinatus (τ b  = 0.72, p  &lt; 0.001) and infraspinatus (τ b  = 0.79, p  &lt; 0.001) muscles. BSC showed excellent performance for classification of the binarized groups (0–2 versus 3–4) for both supraspinatus (AUROC = 0.98, p  &lt; 0.0001) and infraspinatus (AUROC = 0.98, p  &lt; 0.0001) muscles. Using a cutoff BSC value of −17 dB, sensitivity, specificity, and accuracy for severe fatty infiltration were 87.0%, 90.0%, and 87.5% for the supraspinatus muscle, and 93.6%, 87.5%, and 92.7% for the infraspinatus muscle. Conclusion BSC can be applied to the rotator cuff muscles for assessment of fatty infiltration. For both the supraspinatus and infraspinatus muscles, BSC values significantly increased with higher Goutallier grades and showed strong performance in distinguishing low versus high Goutallier grades. Relevance statement Fatty infiltration of the rotator cuff muscles can be quantified using BSC values, which are higher with increasing Goutallier grades. Key Points Ultrasound BSC measurements are reliable for the quantification of muscle fatty infiltration. BCS values increased with higher Goutallier MRI grades. BCS values demonstrated high performance for distinguishing muscle fatty infiltration groups. Graphical Abstract</description><identifier>ISSN: 2509-9280</identifier><identifier>EISSN: 2509-9280</identifier><identifier>DOI: 10.1186/s41747-024-00522-5</identifier><identifier>PMID: 39436589</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Adipose Tissue - diagnostic imaging ; Adult ; Aged ; Diagnostic Radiology ; Female ; Humans ; Imaging ; Internal Medicine ; Interventional Radiology ; Magnetic resonance imaging ; Magnetic Resonance Imaging - methods ; Male ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Muscular atrophy ; Neuroradiology ; Original ; Original Article ; Prospective Studies ; Radiology ; Rotator cuff ; Rotator Cuff - diagnostic imaging ; Shoulder ; Ultrasonic imaging ; Ultrasonography ; Ultrasonography - methods ; Ultrasound</subject><ispartof>European radiology experimental, 2024-10, Vol.8 (1), p.119-9, Article 119</ispartof><rights>This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2024</rights><rights>2024. 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Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2024 2024</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c489t-df1a3463825bf4a9a80ac7c763fa1e984158456c48296ef4b469a3ae0d68f9d23</cites><orcidid>0000-0003-3633-5630</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC11496476/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/3119357616?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25752,27923,27924,37011,37012,44589,53790,53792</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39436589$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Toto-Brocchi, Marco</creatorcontrib><creatorcontrib>Wu, Yuanshan</creatorcontrib><creatorcontrib>Jerban, Saeed</creatorcontrib><creatorcontrib>Han, Aiguo</creatorcontrib><creatorcontrib>Andre, Michael</creatorcontrib><creatorcontrib>Shah, Sameer B.</creatorcontrib><creatorcontrib>Chang, Eric Y.</creatorcontrib><title>Quantitative ultrasound assessment of fatty infiltration of the rotator cuff muscles using backscatter coefficient</title><title>European radiology experimental</title><addtitle>Eur Radiol Exp</addtitle><addtitle>Eur Radiol Exp</addtitle><description>Background To prospectively evaluate ultrasound backscatter coefficients (BSCs) of the supraspinatus and infraspinatus muscles and compare with Goutallier classification on magnetic resonance imaging (MRI). Methods Fifty-six participants had shoulder MRI exams and ultrasound exams of the supraspinatus and infraspinatus muscles. Goutallier MRI grades were determined and BSCs were measured. Group means were compared and the strength of relationships between the measures were determined. Using binarized Goutallier groups (0–2 versus 3–4), areas under the receiver operating characteristic curves (AUROCs) were calculated. The nearest integer cutoff value was determined using Youden’s index. Results BSC values were significantly different among most Goutallier grades for the supraspinatus and infraspinatus muscles (both p  &lt; 0.001). Strong correlations were found between the BSC values and Goutallier grades for the supraspinatus (τ b  = 0.72, p  &lt; 0.001) and infraspinatus (τ b  = 0.79, p  &lt; 0.001) muscles. BSC showed excellent performance for classification of the binarized groups (0–2 versus 3–4) for both supraspinatus (AUROC = 0.98, p  &lt; 0.0001) and infraspinatus (AUROC = 0.98, p  &lt; 0.0001) muscles. Using a cutoff BSC value of −17 dB, sensitivity, specificity, and accuracy for severe fatty infiltration were 87.0%, 90.0%, and 87.5% for the supraspinatus muscle, and 93.6%, 87.5%, and 92.7% for the infraspinatus muscle. Conclusion BSC can be applied to the rotator cuff muscles for assessment of fatty infiltration. For both the supraspinatus and infraspinatus muscles, BSC values significantly increased with higher Goutallier grades and showed strong performance in distinguishing low versus high Goutallier grades. Relevance statement Fatty infiltration of the rotator cuff muscles can be quantified using BSC values, which are higher with increasing Goutallier grades. Key Points Ultrasound BSC measurements are reliable for the quantification of muscle fatty infiltration. BCS values increased with higher Goutallier MRI grades. BCS values demonstrated high performance for distinguishing muscle fatty infiltration groups. 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Methods Fifty-six participants had shoulder MRI exams and ultrasound exams of the supraspinatus and infraspinatus muscles. Goutallier MRI grades were determined and BSCs were measured. Group means were compared and the strength of relationships between the measures were determined. Using binarized Goutallier groups (0–2 versus 3–4), areas under the receiver operating characteristic curves (AUROCs) were calculated. The nearest integer cutoff value was determined using Youden’s index. Results BSC values were significantly different among most Goutallier grades for the supraspinatus and infraspinatus muscles (both p  &lt; 0.001). Strong correlations were found between the BSC values and Goutallier grades for the supraspinatus (τ b  = 0.72, p  &lt; 0.001) and infraspinatus (τ b  = 0.79, p  &lt; 0.001) muscles. BSC showed excellent performance for classification of the binarized groups (0–2 versus 3–4) for both supraspinatus (AUROC = 0.98, p  &lt; 0.0001) and infraspinatus (AUROC = 0.98, p  &lt; 0.0001) muscles. Using a cutoff BSC value of −17 dB, sensitivity, specificity, and accuracy for severe fatty infiltration were 87.0%, 90.0%, and 87.5% for the supraspinatus muscle, and 93.6%, 87.5%, and 92.7% for the infraspinatus muscle. Conclusion BSC can be applied to the rotator cuff muscles for assessment of fatty infiltration. For both the supraspinatus and infraspinatus muscles, BSC values significantly increased with higher Goutallier grades and showed strong performance in distinguishing low versus high Goutallier grades. Relevance statement Fatty infiltration of the rotator cuff muscles can be quantified using BSC values, which are higher with increasing Goutallier grades. Key Points Ultrasound BSC measurements are reliable for the quantification of muscle fatty infiltration. BCS values increased with higher Goutallier MRI grades. BCS values demonstrated high performance for distinguishing muscle fatty infiltration groups. Graphical Abstract</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><pmid>39436589</pmid><doi>10.1186/s41747-024-00522-5</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-3633-5630</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adipose Tissue - diagnostic imaging
Adult
Aged
Diagnostic Radiology
Female
Humans
Imaging
Internal Medicine
Interventional Radiology
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Male
Medicine
Medicine & Public Health
Middle Aged
Muscular atrophy
Neuroradiology
Original
Original Article
Prospective Studies
Radiology
Rotator cuff
Rotator Cuff - diagnostic imaging
Shoulder
Ultrasonic imaging
Ultrasonography
Ultrasonography - methods
Ultrasound
title Quantitative ultrasound assessment of fatty infiltration of the rotator cuff muscles using backscatter coefficient
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