The Role of an Axial MR Scan on the Diagnosis of a Meniscal Tear of the Knee Joint
Journal of the Korean Radiological Society
;
: 167-174, 2007.
Artigo
em Coreano
| WPRIM
| ID: wpr-221794
ABSTRACT
PURPOSE:
To evaluate the role of standard axial MR images for the diagnosis of meniscal tears of the knee. MATERIALS ANDMETHODS:
Forty-five patients with a prior MRI examination that underwent arthroscopic surgery of the knee due to clinical impression of a meniscal tear were included in the study group. The sequence for meniscal evaluation was an axial fat-saturated proton density-weighted image with a 4 mm slice thickness. Axial MR images were independently reviewed by two radiologists and were compared with findings of arthroscopy. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of the axial MR scan for the diagnosis of the meniscal tear were calculated.RESULTS:
A total 90 menisci of 45 patients were evaluated in the axial MR scans. Forty-two patients had meniscal tears, and two of the patients had tears in both menisci; thus, a total of44 meniscal tears were found by arthroscopy. For meniscal tears, the sensitivity of the axial plane was 76.2%, the specificity was 89.1% and the accuracy was 81.1%. False negative meniscal tears were seen in 12 cases and false positive meniscal tears were seen in 5 cases on the axial MR images.CONCLUSION:
In standard knee MRI examinations, axial images may be valuable for the detection and localization of meniscal tears.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Artroscopia
/
Prótons
/
Meniscos Tibiais
/
Imageamento por Ressonância Magnética
/
Sensibilidade e Especificidade
/
Ligamento Colateral Médio do Joelho
/
Diagnóstico
/
Joelho
/
Traumatismos do Joelho
/
Articulação do Joelho
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
2007
Tipo de documento:
Artigo
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