Dural sinus signal void disappeared and dural sinus stenosis on MRV are direct features.
硬膜窦流空信号消失和硬膜窦狭窄、闭塞是直接征像。
In cases of vascular malformation, the presence of a signal void caused by vascular structures containing flowing blood is a clue to the diagnosis.
在血管畸形的影像中，由于流空效应产生的影像是诊断的一个线索。
The acquired typical void fraction signal is presented and qualitative discussion to the dynamic process and mechanism of flow is hence delivered.
定性讨论了不同流型下典型动态时序信号的差别与相应的流动现象与机理。
The acquired typical void fraction signal is presented and qualitative discussion to the dynamic process and mechanism of flow is hence delivered.
定性讨论了不同流型下典型动态时序信号的差别与相应的流动现象与机理。
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