结果：脊索瘤的低场MRI的主要表现有： 肿瘤信号变化，肿瘤形态改变，骨质破坏，周围血管侵蚀及肿瘤外周侵犯等。
Results: The chief characteristics of chordoma in low field MRI were: tumor signal change, tumor shape transformation, bone destruction, the perivascular erosion , etc.
测量瘤重、计算瘤重抑制率、制病理切片，在光镜下观察肿瘤形态与改变。
Tumor weight was measured and the tumor growth inhibitory rate was calculated. Under light microscopy, the tumor morphological changes were observed.
肿瘤细胞线粒体及线粒体DNA的研究已从形态学改变进展至分子水平的变化。
The research on mitochondrion and mitochondrial DNA in tumor cells has developed from morphological changes to molecular alterations.
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