MRT tikslumas menisko plyšimo diagnostikoje

Name and Surname: Raydan Zeidan Title: The accuracy of MRI in the diagnosis of meniscal tears. Aim and objectives: The purpose of this retrospective study is to estimate the accuracy of MRI in the diagnosis of meniscal tear in 68 patients, during the period from 2013 -2018. Methodology and participants: Patients were selected of age interval between 30 and 68; they were excluded of having any other diseases. They were only diagnosed with meniscal tear. These patients underwent knee MRI and their radiological findings of meniscal tear were noted. Then they were hospitalized for knee arthroscopy, information of arthroscopic examination were noted. The MRI of medial and lateral menisci was assessed for the presence of tear and both were graded in a scale ranging from 1 to 5. (1= definitely not a tear, 2= probably not a tear, 3= indeterminate or equivocal, 4=probably a tear, 5=definitely a tear). Results and conclusion: When grade 5 was considered a tear sensitivity and specificity were 0.92, 0.95 for MM, and 0.85, 0.91 for LM respectively, when grades 4 and 5 were considered at tear results were 0.97, 0.77 for MM and 0.89, 0.82 for LM, when grades 3 to 5 were considered a tear 0.99, 0.56 and 1.0, 0.63 were recorded. The positive predictive values (PPVs) of MRI for the medial meniscus were 99% grade 5, 50% grade 4, 33% grade 3, 25% grade 2, 0% grade 1. For the Lateral meniscus PPVs of MRI were 84% grade 5, 41% grade 4, 19% grade 3, 0% grade 2 and grade 1. Conclusions: In the diagnosis of meniscal tears, MRI has a high accuracy if only definitive findings are considered a tear. Add to that the familiarity with secondary signs of meniscal tears between healths professionals can help reduce interpretation errors