Research Article

Preliminary Study on the Application of Ultrahigh Field Magnetic Resonance in Moyamoya Disease

Figure 4

A 51-year-old male The patient suffered from sudden onset of slurred speech and right-hand weakness 8 years ago. The patient had a decline in the cognitive function in the last 2 months and denies a history of intracranial hemorrhage. (a, b) axial SWI showed low signal foci in the left frontal lobe of the SWI sequence, which was considered as a hemorrhagic lesion. In addition, the tortuous drainage vein can be seen to be dilated, and the brush sign is more obvious (c). Axial TOF showed moyamoya disease, (d) with the merge of the TOF and SWI sequences, a suspicious criminal artery was found (white arrow in (d)). ACVS was also found in this case on the SWI sequence ((e) dashed box). DSA confirmed the diagnosis of MMD and showed a high consistency with TOF-MRA.
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