The purpose of this study was to clarify the intracranial hemodynamics before and after superficial temporal artery to middle cerebral artery (STA-MCA) bypass surgery by comparing flow parameters obtained by time-resolved 3-dimensional phase-contrast (4D flow) MRI and intraoperative MCA pressure measurement.
The visual and quantitative assessment of 4D flow MRI revealed that intracranial blood flow changes complementarily after STA-MCA bypass surgery. The sum of intracranial BFV can be used for the evaluation of treatment outcome after the surgery.
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