南方医科大学学报

南方医科大学学报 ›› 2005, Vol. 25 ›› Issue (12): 1552-1554.

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下肢骨肉瘤的MRI与X线对照研究

黄晖, 陈燕萍, 曹国洪, 林志春   

  1. 南方医科大学南方医院影像诊断中心, 广东, 广州, 510515
  • 出版日期:2005-12-20 发布日期:2005-12-20
  • 基金资助:
    收稿日期:2005-4-16。
    作者简介:黄晖(1976- ),女,南方医院影像中心在读硕士,电话:020-61642086,E-mail:hhui0913@sina.com.

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

HUANG Hui, CHEN Yan-ping, CAO Guo-hong, LIN Zhi-chun   

  1. 南方医科大学南方医院影像诊断中心, 广东, 广州, 510515
  • Online:2005-12-20 Published:2005-12-20

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摘要： 目的 对比分析下肢骨肉瘤的X线与MRI表现,探讨MRI对骨肉瘤的诊断价值。方法 收集经手术或病理穿刺活检证实的下肢骨肉瘤15例,男11例,女4例,均行MRI平扫及增强扫描(4例行CT扫描),并摄有X线平片,对其MRI征象与X线征象作逐一对比。结果 MRI及X线平片对下肢骨肉瘤的诊断准确率均为100%,MRI在显示病变范围、放射状骨针、Codman三角两层结构以及跳跃病灶等方面明显优于X线平片检查。结论 X线平片是诊断骨肉瘤最简便而实用的方法,但MRI可以更好的显示病变的范围,发现早期病变。

Abstract: Objective To investigate the diagnostic value of magnetic resonance imaging (MRI) for lower limb osteosarcoma by comparing the findings between X-ray and MRI. Methods Fifteen 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. Results The 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. Conclusion Plain 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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