الفهرس 
The value of high resolution ultrasound in evaluation of meniscal lesions
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Abstract
Objectives: To investigate the role of high resolution Ultrasound (US) in the diagnosis of meniscal degeneration and tears as compared to Magnetic resonance imaging (MRI). Methods: Thirty patients were included in the study. Patients were divided into three groups according to their ages (with interval of 16 years). After MRI and US, comparison of the results was done using ROC curve analysis to detect sensitivity, specificity, positive predictive value and negative predictive value, positive likehood ratio and negative likehood ratio. Parametric t test and ANOVA were performed and for the non-parametric Chi square test was performed. Results: US exam was not as efficient as MRI in detection of degeneration. For tears, the sensitivity and specificity of US were 89.47% and 72.73% respectively. Medial meniscus posterior horn was the best visualized portion by US while visualization of the main bodies was limited.The results showed strong correlation with patients age as well as the presence of osteoarthritic changes