核素显像对股骨头缺血坏死的诊断及预测价值

Diagnostic and Prognostic Significance of Radioisotope Bone Scan in the Patients with Avascular Necrosis of Femoral Head

目的：探讨核素显像对股骨头缺血坏死（ＡＮＦＨ）的应用价值。方法：使用大视野γ照相机、针孔准直器，对５３例（６１侧）股骨头缺血坏死进行血池＋静态显像。结果：核素显像诊断ＡＮＦＨ阳性率为９０％（５５／６１侧）。２例无症状及Ｘ线表现的患髋的对侧髋显像轻度异常，２年后发展为缺血坏死。结论：采用正确的核素显像方法，不仅能够早期检测ＡＮＦＨ，而且可发现一些亚临床改变，同时可能用于预测股骨头塌陷。

PURPOSE:To evaluate the significance of radioisotope bone scan in patients with Avascular Necrosis of the Femoral Head(ANFH). METHOD:In 61 hips of ANFH, blood pool image were obtained, following 2 hours delayed image with pin hole collimator. RESULT:The sensitivity of imaging is 90%. 2 hips which have no symptoms but with mild abnormal imaging develop ANFH follow for 2 years. CONCLUSION:ANFH can be detected earlier and some subclinical abnormalities and the risk for collapse could be prognosticated.