Diagnostic Accuracy of 0.2 Tesla Open MR Imaging Unit in Detecting Meniscal Tears: Correlation with Arthroscopy

Aim: In the assessment of meniscal tears, diagnostic accuracy of 0.2 Tesla (T) magnetic resonance imaging (MRI) was investigated and compared with arthroscopy as standard of reference. Method: 340 patients suspected with meniscal tears were examined by 0.2 Tesla open MRI unit. 47 of the patients underwent arthroscopy. The arthroscopy results were compared with interpretations of MRI retrospectively. Result: In detecting meniscal tears with 0.2 T MRI, sensitivity, specificity and diagnostic accuracy were 90%, 88,2%, 89,4% for medial meniscal tears and 91%, 91,6%, 91,5% for lateral meniscal tears, respectively. Conclusion: O.2 T MRI is effective in detecting meniscal tears and can be safely use in detecting the meniscal pathologies.

[1]  A. Nachbagauer,et al.  MRI of the knee: how do field strength and radiologist’s experience influence diagnostic accuracy and interobserver correlation in assessing chondral and meniscal lesions and the integrity of the anterior cruciate ligament? , 2009, European Radiology.

[2]  K. Karaali,et al.  [MR imaging of meniscal tears at low-field (0.35 T) and high-field (1.5 T) MR units]. , 2004, Tanisal ve girisimsel radyoloji : Tibbi Goruntuleme ve Girisimsel Radyoloji Dernegi yayin organi.

[3]  S. Hung,et al.  Imaging evaluation of meniscal injury of the knee joint: a comparative MR imaging and arthroscopic study. , 2004, Clinical imaging.

[4]  B. Swoboda,et al.  Comparison of low-field (0.2 Tesla) and high-field (1.5 Tesla) magnetic resonance imaging of the knee joint , 2004, Archives of Orthopaedic and Trauma Surgery.

[5]  X Demondion,et al.  MR imaging of the knee at 0.2 and 1.5 T: correlation with surgery. , 2000, AJR. American journal of roentgenology.

[6]  H. Imhof,et al.  Comparison of low field (0.2T) and high field (1.5T) MR imaging in the differentiation of torned from intact menisci. , 1999, European journal of radiology.

[7]  D. Rubin MR imaging of the knee menisci. , 1997, Radiologic clinics of North America.

[8]  P. Parizel,et al.  Low-field versus high-field MR imaging of the knee: a comparison of signal behaviour and diagnostic performance. , 1995, European journal of radiology.

[9]  I. Tulikoura,et al.  Diagnostic performance of low field MRI in acute knee injuries. , 1994, Magnetic resonance imaging.

[10]  J. Szumowski,et al.  Menisci of the knee: radial MR imaging correlated with arthroscopy in 259 patients. , 1992, Radiology.

[11]  M. Friedman,et al.  Accuracy of diagnoses from magnetic resonance imaging of the knee. A multi-center analysis of one thousand and fourteen patients. , 1991, The Journal of bone and joint surgery. American volume.