Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Sports Medicine - Knee
Abstract number: 25523
HIGH AND LOW-POLE MRI OF THE KNEE: COMPARISON OF ACCURACY.
Dmitriy ILYIN 1 , Andrey KOROLEV 1 , Sergey MOROZOV 2 , Pavel FILISTEEV 3
1 PFU, ECSTO, Moscow (RUSSIA), 2 MMA, Moscow (RUSSIA), 3 MMA, ECSTO,
Moscow (RUSSIA)
PURPOSE: evaluation sensitivity, specifity, NPV, PPV and accuracy of high- and
low-pole MRI of the knee joint. MATERIALS AND METHODS: retrograde
investigation of 100 operated knees with lesions of medial and lateral menisci, ACL
and gialine cartilage. Half of them were pre-operative evaluated using low-pole MRI
(less then 1,0 T), the other half - using high pole MRI (1.5 or 3.0T). The evaluations
were performed in different diagnostic centers by different radiologists. Arthroscopy
was performed by skillful orthopedists in our clinic and used as gold standard.
RESULTS: The most pronounced difference was seen in diagnostic of ACL lesions:
for the low-pole MRI sensitivity was 40,0%, specifity - 84,6%, NPV - 47,8 %, PPV -
80,0%, accuracy - 57,5%. The same parameters for high pole MRI were: sensitivity -
82,0%, specifity - 91,0%, NPV 66,7%, PPV - 91,0%. Total accuracy of low-pole MRI
was 65,7%, of high-pole MRI - 74,8%. The results were higher in Orthopaedicsspecialised
centers. CONCLUSIONS: high-pole MRI is significantly better diagnostic
tool for lesions of the knee than the low-pole one.
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