摘要
目的是探讨Ｘ线、ＣＴ与ＥＣＴ对各期股骨头缺血性坏死的诊断价值与评估。材料和方法采用了对８２例股骨头缺血性坏死的早、中、晚期在此三项检查中的不同表现做了回顾性分析。结果得到Ｘ线对早期改变无特征，对小于０．３ｃｍ以下的囊变易漏诊，ＣＴ对早期病变的诊断较Ｘ线优越，但ＥＣＴ在股骨头坏死最初数周既可呈放射性缺损“冷区”。结论是早期病变ＥＣＴ为最理想的检查手段；中晚期病例，Ｘ线对病变分型有帮助，ＣＴ做诊断的特征性与解剖的分辨力明显优于ＥＣＴ可对囊变的大小、形状、部位及程度给予可靠的判定，对指导手术、帮助定位有很大作用。
Purpose:This study assesses the diagnostic value of X-ray, CT and ECT onischemic necrosis of femoral head in different stages. Materials and Methods In 82 cases withischemic necrosis of femoral head in early.Middle and advanced stages, the findings in X-ray,CTand ECT examinations were studied with retrospective analysis. Results No early findings werecharacteristic and the lesions less than 0.3cm might be missed in X-ray films. The CT scans inearly diagnosis were superior to the radiograms. However, ECT examinations showed theradioactive defective 'cold area', even at the first several weeks after onset. Conclusions: for earlylesions ACT are the most ideal examinations method. X-ray helps to distinguish the type of lesionsin middle and late stages. CT in the characteristics and anatomical resolution of lesions is clearlysuperior to ECT and it may give a reliable judgement for the size, shape, site and extent of lesions,which helps to guide and locate operation.
出处
《CT理论与应用研究（中英文）》
1999年第4期21-23,共3页
Computerized Tomography Theory and Applications
