The effects of aging on quantitative sonographic features of rotator cuff tendons
| Autor: | Fang-Chen Liang, Chien-Hung Chen, Wen-Chung Tsai, Tung-Yang Yu, Ju-Wen Cheng, Yun-Ming Yang |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Aging medicine.medical_specialty Shoulders Sensitivity and Specificity Biceps Supraspinatus tendon Cohort Studies Tendons Rotator Cuff Young Adult Reference Values Risk Factors Shoulder Pain Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Rotator cuff Prospective Studies Aged Ultrasonography Aged 80 and over business.industry Ultrasound Age Factors Echogenicity Middle Aged musculoskeletal system Tendon medicine.anatomical_structure Evaluation Studies as Topic Tears Female Radiology business |
| Zdroj: | Journal of Clinical Ultrasound. 40:471-478 |
| ISSN: | 0091-2751 |
| DOI: | 10.1002/jcu.21919 |
| Popis: | Purpose. Grayscale analysis is a practical, objective, and easy way to quantify echogenicity during ultrasonography. The purpose of the current study was to measure the changes in thickness and echogenicity that result from aging of the rotator cuff and long head of the biceps tendons. Methods. The study comprised 45 volunteers, aged between 20 and 84 years and without history of shoulder pain. Participants were divided into three groups: young, middle-aged, and old. All subjects underwent standard ultrasonography of both shoulders. Tendon thickness and tear were recorded, and images in both transverse and longitudinal scans were taken for grayscale analysis. To reduce the attenuation effect from skin and subcutaneous fat, we used the ratio of echogenicity of the tendon to that of the reference muscle and compared the tendon echogenicity among the different age groups. Sonographic findings were also correlated with age. Results. The supraspinatus tendon was significantly thicker in elderly participants and this was positively correlated with age. Moreover, the echogenicity ratio of the supraspinatus tendon decreased in the elderly group and showed a negative correlation with age. There was a higher prevalence of supraspinatus tendon tears in the older participants. Conclusions. Our results indicate that supraspinatus tendons became thickened, hypoechogenic, and more likely to tear with age. The study presents a simple and useful method to investigate the echogenicity of the rotator cuff quantitatively. © 2012 Wiley Periodicals, Inc. J Clin Ultrasound 40:471–478, 2012 |
| Databáze: | OpenAIRE |
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