• Di Yi Jun Yi Da Xue Xue Bao · Dec 2005

    Comparative Study

    [Magnetic resonance imaging and radiography for diagnosis of lower limb osteosarcoma: a comparative study].

    • Hui Huang, Yan-ping Chen, Guo-hong Cao, and Zhi-chun Lin.
    • Diagnostic Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. hhui0913@sina.com
    • Di Yi Jun Yi Da Xue Xue Bao. 2005 Dec 1; 25 (12): 1552-4.

    ObjectiveTo investigate the diagnostic value of magnetic resonance imaging (MRI) for lower limb osteosarcoma by comparing the findings between X-ray and MRI.MethodsFifteen surgically or pathologically confirmed patients with lower limb osteosarcoma (11 males and 4 females) underwent both plain and enhanced MRI (with CT scanning in 4 cases) in addition to radiography, and the findings were compared.ResultsThe diagnostic accuracy of both MRI and X-ray film was 100%. Compared with X-ray, MRI was capable of clear display of the lesion extent, perpendicular periosteal reaction, the two layers of Codman's triangle and the skip lesions.ConclusionPlain X-ray film provides a convenient and practical diagnostic modality for lower limb osteosarcoma, but MRI has better performance in clearer display of the tumor range and identification of early-stage lesions.

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