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2015•Chinese Journal of CT and MRIRequires access

Diagnosis by MRI on Cartilage Injury of Knee Joint

Zhang Zhen-yon

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Abstract

Objective To study the diagnostic value of MRI on cartilage injury of knee joint. Methods The MRI data of 123 patients with cartilage injury of knee joint were analyzed respectively and were compared with results of arthroscope or operation. Results Results The total cartilage injury of knee joint presented with 99.15% sensitivity,98.35% specificity and 98.67% accuracy, 99.44% negative predictive value, stage I~Ⅳ of positive predictive value was 82.35%、87.7%、94.4%、100%.The MRI result was similar to the arthroscope result(Kappa=0.949 p=0.000). Conclusions MRI demonstrated the location, range and injury degree of the cartilage injury exactly, which may be the best examination for cartilage injury.

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What this paper is about

Objective To study the diagnostic value of MRI on cartilage injury of knee joint. Methods The MRI data of 123 patients with cartilage injury of knee joint were analyzed respectively and were compared with results of arthroscope or operation. Results Results The total cartilage injury of knee joint presented with 99.15% sensitivity,98.35% specificity and 98.67% accuracy, 99.44% negative predictive value, stage I~Ⅳ of positive predictive value was 82.35%、87.7%、94.4%、100%.The MRI result was similar to the arthroscope result(Kappa=0.949 p=0.000). Conclusions MRI demonstrated the location, range and injury degree of the cartilage injury exactly, which may be the best examination for cartilage injury.

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Available abstract

Objective To study the diagnostic value of MRI on cartilage injury of knee joint. Methods The MRI data of 123 patients with cartilage injury of knee joint were analyzed respectively and were compared with results of arthroscope or operation. Results Results The total cartilage injury of knee joint presented with 99.15% sensitivity,98.35% specificity and 98.67% accuracy, 99.44% negative predictive value, stage I~Ⅳ of positive predictive value was 82.35%、87.7%、94.4%、100%.The MRI result was similar to the arthroscope result(Kappa=0.949 p=0.000). Conclusions MRI demonstrated the location, range and injury degree of the cartilage injury exactly, which may be the best examination for cartilage injury.

Key concepts: Medicine, Cartilage, Knee Joint, Cartilage damage, Predictive value, Articular cartilage, Kappa, Stage (stratigraphy)

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