Abstract #4142

0.2 mm Isotropic Intracranial Perforating Arteries Imaging using Compressed Sensing TOF-MRA at 7T

Zhe Zhang^1,2, Qingle Kong³, Jing Jing^1,2, and Yongjun Wang^1,2,4

¹Tiantan Neuroimaging Center of Excellence, Beijing Tiantan Hospital, Capital Medical University, Beijing, China, ²China National Clinical Research Center for Neurological Diseases, Beijing, China, ³MR Collaboration, Siemens Healthineers Ltd., Beijing, China, ⁴Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

Synopsis

The impairment of microvessels can lead to neurologic diseases such as stroke and vascular dementia. The imaging of perforating arteries requires an extremely high resolution due to their small caliber size. In this study, we optimized the parameters of compressed sensing (CS) TOF-MRA to achieve isotropic 0.2 mm lenticulostriate artery (LSA) images within 10 minutes at 7T. More LSA stems and branches were delineated in CS TOF images compared with conventional TOF images. CS TOF-MRA can be a state-of-the-art method for detecting microvasculopathies of cerebral vascular diseases.

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