脊索瘤的多层螺旋CT和MRI影像表现分析

发布时间：2018-05-20 07:10

本文选题：脊索瘤 + 颅底　；参考：《中国CT和MRI杂志》2016年10期

【摘要】：目的总结脊索瘤的多层螺旋CT和MRI影像表现。方法选择我院2010年1月-2016年3月所收治的脊索瘤患者34例作为研究对象。行螺旋CT与MRI检查,对患者多层螺旋CT和MRI影像表现进行总结。结果脊索瘤患者好发部位为颅底与骶尾部,呈不规则分叶状、椭圆状或结节状。CT检查呈不均匀低密度影或低及等密度影,边界清晰,均可见溶骨性及膨胀性骨质破坏,部分可见脊索瘤内点状或斑片状钙化,增强后呈不均匀轻、中度强化。MRI平扫示肿瘤轮廓光整、边缘清晰,T1WI均呈均匀或混杂的低或等信号,T2WI呈明显高信号或等或稍长T2信号,DWI等或高信号,增强扫描呈"颗粒样"轻、中度强化。结论 CT利于显示脊索瘤骨质破坏及瘤内钙化,MRI软组织分辨率高,可显示病灶内囊变、出血、钙化等多种病理改变,二者各有优势与不足,在脊索瘤临床诊断中的应用均有较高价值。
[Abstract]:Objective to summarize the multi-slice spiral CT and MRI findings of chordoma. Methods 34 cases of chordoma treated in our hospital from January 2010 to March 2016 were selected. Spiral CT and MRI were performed to summarize the multislice CT and MRI findings. Results the most common sites of chordoma were skull base and sacrococcyx, with irregular lobulation, ellipsoid or nodular. Ct showed uneven low density or low or equal density, clear boundary, osteolytic and expansive bone destruction. In part of the chordoma, punctate or patchy calcification was seen in the chordoma, with uneven and mild enhancement, moderate enhancement. MRI showed smooth outline of the tumor. On T _ 1WI, the edges were all homogeneous or mixed with low or equal signal intensity. The T _ 2WI showed obvious hyperintensity or iso-or slightly longer T _ 2 signal intensity on DWI or hyperintensity, and enhanced scan showed "granuloid" light and moderate enhancement. Conclusion CT is helpful to show bone destruction and calcification in chordoma. MRI has high resolution of soft tissue, and can display various pathological changes, such as cystic change, hemorrhage, calcification, etc., both of them have advantages and disadvantages. It has high value in clinical diagnosis of chordoma.
【作者单位】：山东省青岛市市立医院放射科;
【分类号】：R738;R730.44;R445.2

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