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| 早期股骨头缺血怀坏死影像学诊断的实验研究 | |
| 引用本文： | 杨业林,徐杰,孙强. 早期股骨头缺血怀坏死影像学诊断的实验研究[J]. 中国伤残医学, 2010, 18(1) |
| 作者姓名： | 杨业林 徐杰 孙强 |
| 作者单位： | 1. 南京医科大学附属南京江宁医院骨科,江苏,南京,211100 2. 南京医科大学附属南京第一医院骨科 |
| 摘 要： | 目的:研究早期股骨头缺血怀坏死(ANFH)CT、MRI的诊断价值。方法:健康成年中国白兔30只,随机分成2组。实验组24只,每周2次肌注地塞米松磷酸钠7.5mg·kg-1诱发股骨头缺血性坏死模式。在第3、6、9周采用MRI及螺旋CT扫描行影像学分期。参照分期处死动物对股骨头标本行病理检查,评价影像学诊断的准确性。结果:送检的0、Ⅰ、Ⅱ期各12髋股骨头病理证实均存在早期股骨坏死表现。MRI(T1W1)表现为不同程度局限性低信号。相应螺旋CT扫功依次为阴性,可疑,明确骨质疏松或硬化表现。结论:MRI结合螺旋CT扫描即可发现早期缺血性坏死病变,又可进行分期,是研究早期ANFH的可靠手段。 |
| 关 键 词： | 股骨头坏死 缺血性 CT MRI |
Experimental Study ON Imagin Diagnosis in Early Avascular Necrosis of Femoral Head |
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| YANG Ye-lin,XU Jie,SUN Qiang. Experimental Study ON Imagin Diagnosis in Early Avascular Necrosis of Femoral Head[J]. Chinese JOurnal of Trauma and Disability Medicine, 2010, 18(1) | |
| Authors: | YANG Ye-lin XU Jie SUN Qiang |
| Affiliation: | YANG Ye-lin,XU Jie,SUN Qiang(Deparfment of Orthopaedcs,The Jiangning Hospitol Affilated to Nanjing Mechical University.210026) |
| Abstract: | Purpose:To study the diagonstic value of CT and MRI in the early avascular necrosis of the femoral head(ANFH).Materials and Methods:Thirty adult rabbits were divided into two groups.The animal model of ANFH was established by intra-muscular injection of sodium phosphate dexamethasone at a dose of 7.5mg/kg in 24 rabbits two times a week.The staging and imaging of the early ANFH were determined by suing MRI and spiral CT(SCT)scan at the 3rd,6th and 9th week.Rabbits were killed according to the staging and his... |
| Keywords: | CT MRI |
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