2.2.5磁共振血管造影（magnetic resonance angiography MRA） 常规MRA的方法有两种，时间飞跃法（time-of-flight TOF）和相位对比法(phase contrast PC)，其目的都是最大限度地提高血流和静止...
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cranial magnetic resonance angiography mra 磁共振脑血管成像
MRA magnetic resonance angiography 磁共振血管造影 ; 磁共振血流成像
Objective To investigate the value of MRI and magnetic resonance angiography(MRA) for moyamoya disease .
目的探讨磁共振成像（MRI）和磁共振动脉成像（MRA）对烟雾病的诊断价值。
Objective To explore the application value of three-dimensional dynamic contrast-enhanced magnetic resonance angiography (3d DCE-MRA) of the skull and neck vessel disease.
目的探讨磁共振三维动态对比增强磁共振血管成像(3d DCE - MRA)对头颈部血管病变诊断的应用价值。
Objective To evaluate the role of magnetic resonance angiography (MRA) in the study of hemodynamics in patients with portal hypertension (PHT).
目的探讨磁共振血管成像(MRA)在门静脉高压症血流动力学研究中的应用价值。
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