腰部MRI显示在L4–S1区域在使用钆类造影剂后显示为有间隔和环状增强的囊性病变。
The lumbar magnetic resonance imaging showed a cystic lesion with septation and slight rim enhancement after gadolinium administration at the L4–S1 area.
目的总结探讨颅内环状强化转移瘤在超低场强MRI增强扫描的特点。
Objective To summarize and discuss the characters of intracranial ring-enhanced metastatic tumors enhancedly scanned by MRI with ultra-low field.
研究发现环状聚芳醚酮齐聚物熔融温度低，熔体粘度小，具有良好的流动性，十分有利于充模成型及浸渍增强纤维。
The melt viscosity of the cyclic oligomer is very low which is necessary to impregnate the carbon reinforcement well.
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