股骨头缺血性坏死CT与MRI诊断比较

Comparison of CT and MRI in Diagnosing Avascular Necrosis of the Femoral Head

目的探讨CT和MRI诊断股骨头缺血性坏死的影像学表现和临床意义。方法对60例患者行CT和MRI检查,并对其进行影像学比较。结果CT0期14个部位,I期20个部位,Ⅱ期24个部位,Ⅲ期16个部位,Ⅳ期和V期共有10个部位;MRI0期14个部位,I期19个部位,Ⅱ期25个部位,Ⅲ期15个部位,Ⅳ期和V期共有11个部位;MRI对股骨头缺血性坏死的确诊率要优于CT(P<0.05)。结论CT和MRI均是检查股骨头缺血性坏死的有效手段,但MRI较CT更具有敏感性和特异性。

Objective To explore the radiology performance and clinical significance of CT and MRI to diagnose avascular necrosis of the femoral head（ANFH）. Methods 60 cases were checked with CT and MRI,eompare their radiology performance. Results In CT check,there were 14 0 period, 20 Ⅰ period,24 Ⅱ period,16 Ⅲ period,10 Ⅳ and Ⅴ period; while in MRI check,there were 14 0 period, 19 Ⅰ period, 25 Ⅱ period, 15 Ⅲ period, 11 Ⅳ and Ⅴ period; the diagnose rate of MRI was higher than CT（P〈0.05）. Conclusion CT and MRI are good method to diagnose ANFH,but MRI is more sensitive and special.