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[Application value of high-frequency ultrasound on the diagnosis of rotator cuff tears]
Chen Zhang1, Ling Guo1, Na An1
1Wangfing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China.
Objective:
To study the diagnostic value of high frequency ultrasound in diagnosing rotator cuff tears.
Methods:
Total 37 patients (37 shoulders) with rotator cuff tears were detected by ultrasound, MRI examination and arthroscopy retrospectively. Among the patients,21 patients were male and 16 patients were female. The average age was 64 years old (ranged, 51 to 75 years old). High frequency ultrasonography and MRI were applied to exam the shoulder under the standardizeds to point types and compare with arthroscopy results.
Results:
Thirty-two shoulders were diagnosed as rotator cuff injury by ultrasound, and 5 shoulders were detected as normal rotator cuff by ultrasound. Twenty-nine shoulders were diagnosed as rotator cuff injury by MRI, and 8 shoulders were detected as normal rotator cuff by MRI. Thirty-three shoulders were diagnosed as rotator cuff injury during the operation, and 4 shoulders were regarded as rotator cuff during the operation. The sensitivity of ultrasound diagnosis was 93.4% (31/33), and specific degree was 75.0%(3/4). The sensitivity of MRI diagnosis was 87.5% (28/32), and specific degree was 80.0% (4/5).
Conclusion:
High frequency ultrasound in the diagnosis of rotator cuff tears injuries has a high sensitivity and specificity. High frequency ultrasound can be used as a routine method to diagnose rotator cuff tears injuries.
