秦健;赵鲁平;朱建忠;李筱倩;李长勤;

• 1:泰山医学院附属医院影像科

摘要(Abstract)：

[目的]通过测量健康志愿者骶髂关节旁骨髓区DWI及DCE序列相关参数,获取正常骶髂关节旁骨髓区量化值,以期对骶髂关节相关病变的研究奠定基础。[方法]选取65例(男32例、女33例)健康志愿者行骶髂关节磁共振DWI多b值扫描,对比后选取最佳b值图像并获得ADC平均值范围;其中21位志愿者(男13例,女8例)行骶髂关节DCE-MRI扫描,绘制TIC曲线并分析曲线的类型,分析所计算出的Fenh、Senh值及达峰时间Tmax值。[结果]经对比分析,骶髂关节骨髓区在b值为600 s/mm2时,所测ADC值精确度高,分别为右髂侧(3.472±0.441)、左髂侧(3.402±0.425)、右骶侧(3.272±0.398)及左骶侧(3.249±0.401),左右两侧骶髂关节骨髓区ADC值无明显差异(P>0.05)。DCE序列其左、右及髂、骶侧骨髓区TIC曲线有三种类型,8.3%(7/84)Ⅰ型,8.3%(7/84)Ⅱ型,83.3%(70/84)Ⅲ型;Fenh、Senh值平均值均处于20%0.05)。[结论]本研究结果显示DWI序列最佳显示骶髂关节的适宜b值为600 s/mm2;健康志愿者骶髂关节骨髓区强化方式主要为无强化及轻度强化;其ADC值及Fenh、Senh平均值可作为正常骶髂关节骨髓区的量化指标。

关键词(KeyWords)： 磁共振;弥散加权成像;磁共振动态增强扫描;骶髂关节

Abstract:

Keywords:

基金项目(Foundation): 山东省卫生厅医药卫生科技发展计划项目(编号:2013WS0325)

作者(Author): 秦健;赵鲁平;朱建忠;李筱倩;李长勤;

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DOI:

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