Tung Christie E, Olivot Jean Marc, Albers Gregory W
Stanford University Medical Center, Palo Alto, Calif., USA.
Front Neurol Neurosci. 2014;33:115-22. doi: 10.1159/000351913. Epub 2013 Oct 11.
Neuroimaging is critical in the evaluation of patients with TIA. CT and MRI are the two available options for imaging. Head CT is more widely available and commonly used. Diffusion MRI is the recommended modality to image an ischemic lesion. The presence of a diffusion lesion in a patient with transient neurological symptoms is an indicator of a high risk of recurrent stroke. Perfusion imaging with perfusion MRI or CT perfusion may improve the detection of ischemic lesions. Noninvasive vessel imaging may detect a symptomatic vessel lesion associated with an increased risk of stroke.
神经影像学检查在短暂性脑缺血发作（TIA）患者的评估中至关重要。CT和MRI是两种可用的成像检查方法。头部CT更容易获得且常用。弥散加权磁共振成像（Diffusion MRI）是对缺血性病变进行成像的推荐方式。有短暂性神经症状的患者出现弥散加权病变是复发性中风高风险的一个指标。采用磁共振灌注成像（perfusion MRI）或CT灌注成像的灌注成像检查可能会提高缺血性病变的检出率。无创血管成像检查可能会检测到与中风风险增加相关的有症状血管病变。
