小儿股骨头缺血性坏死的X线平片与CT对照研究  

Comparative Study on Perthes Disease with CT and Plain Radiographs

作　　者：张昌政[1] 杨贤卫[1] 袁浩[1] 

机构地区：[1]广州中医药大学第一附属医院,广州510405

出　　处：《三峡大学学报（人文社会科学版）》1999年第5期87-89,共3页Journal of China Three Gorges University(Humanities & Social Sciences)

摘　　要：目的：探讨ＣＴ 在小儿股骨头缺血性坏死（ＬＰＤ） 诊断中的作用和价值－ 材料和方法：回顾性分析５０ 例５８ 髋小儿股骨头缺血性坏死的Ｘ 线平片与ＣＴ 表现，按Ｃａｔｔｅｒａｌｌ 分期标准比较各自的征象－ 结果：ＣＴ在早期病变中可发现较多的征象，包括骺骨化中心微小密度改变、骺软骨的改变和少量关节积液等，对病变的定位和定量更清楚，分期更准确；Ｘ 线平片完全可满足中后期病变诊断和分期要求－ 结论：Ｘ 线平片是ＬＰＤ的首选影像检查方法，ＣＴ在ＬＰＤ 的早期诊断中有帮助。Purpose: to investigate the value of CT in diagnosing Legg-perthes disease (LPD) Materials and Methods: 58 diseased hips were found in 50 patients with LPD, every patients underwent both routine frontal and frogleg plain radiographs and axial CT scans of the hips Basing on Caterall staging critira, the appearances on CT and plain-films were analied comparatively Results: In the earlier phase (stage Ⅰ-Ⅱ), comparing with plain-films CT provided more features including subtle changes in density and contour of epiphysis, abnormalities in the epiphyseal cartilage and little effusion in the joint space; staging according to CT was more accurate for its ability to locate real plsition and extent of the lesion In the postier phase (stage Ⅲ-Ⅳ), the plain-film fully meeted the needs of diagnosing and staging of the disease Conclusion: X plain-film is the imaging method of choice in diagnosing LPD, CT is helpful in the earlier phase but not necessary in the postier phase

关 键 词：扁平髋 髋关节 CT X线平片 

分 类 号：R726.8[医药卫生—儿科]