Quantitative ultrasound assessment of fatty infiltration of the rotator cuff muscles using backscatter coefficient
Year: 2024
Type: article
Study design: Observational Study
Abstract: 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: = 0.79, p < 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 < 0.0001) and infraspinatus (AUROC = 0.98, p < 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.
Source: European Radiology Experimental
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,790
Awards: G1041550852, G1916378024, G2039568080, G2258958189, G2279558785, G2754287213, G3420376546, G3829722560, G4119534169, G4431307322, QUANTITATIVE MEDICAL IMAGING APPROACHES TO DIAGNOSING NEUROMUSCULAR INJURY AND TRACKING REPAIR. NEW AWARD., G4979483176, G5850682332, G590191351, G6691640272, G6830883353, G7267134812, G7448966117, Three-dimensional Ultrashort Echo Time Magnetic Resonance Imaging of Entheses, G9000339354
OpenAlex ID: W4403645297