Accuracy of Ultrasound in Comparison to Magnatic Resonance Imaging in Diagnosis of Meniscal Tears Yaseen Mahmoud Khudair1, Gorial Faiq I.2,* 1Department of Surgery, College of Medicine, University of Baghdad, Baghdad, Iraq 2Department of Medicine, College of Medicine, University of Baghdad, Baghdad, Iraq *Corresponding Author: Faiq I. Gorial, Department of Medicine, College of Medicine, University of Baghdad, Baghdad, Iraq, Email: faiqig@gmail.com
Online published on 20 March, 2019. Abstract Background Meniscal tears has significant impact on patients quality of life so early diagnosis by a simple cheap non invasive investigations is important. Objective To assess acuracy of ulrasound (US) in comparison to magnatic reonance imaging (MRI) in diagnosis of meniscal tears. Patients and Method This diagnostic accuracy study involved 50 patients with clinical features of meniscal tears. Ultrasound and MRI were done for each patients. US was read by a single radiologist blinded to the result of MRI and its diagnostic accuracy was measured. Results No significant difference between US and MRI in detecting meniscal tears. Diagnostic accuracy of US was 70%, sensitivity 91.4%, specificity 20%, Positive predictive value (PPV) at pretest 50% was 53.3% and PPV at pretest 90% was 91.14%, Negative predicitive value (NPV) at pretest 10% was 95.4%, Likelihood ratio positive (LR+)= 1.04, Likklihood ratio negative (LR−) = 0.86, Diagnostic Odd ration (DOR)= 1.21 95% confidence interval (CI)=0.2589–5.64. Conclusions US has good diagnotic accuracy compared to MRI in detecting meniscal tears. This may suggest that US can be used instead of MRI in clinical practice. It is simple and relatively cheap investigation. Top Keywords Meniscal tears, Ultrasound, Magnatic resonance maging, diagnosis. Top |