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Abstract #1993

Detecting Cerebral Perfusion Territories and Arterial Source Locations with Minimal Prior Planning Using Harmonically Encoded Pseudocontinuous Arterial Spin Labeling

Wen-Chau Wu1, 2

1Graduate Institute of Oncology, National Taiwan University, Taipei, Taiwan; 2Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan

Territorial arterial spin labeling (TASL) has been known for its capability of noninvasively measuring regional blood flow supplied by a single or a subset of feeding arteries, which in the human brain is currently only achievable by using interventional digital subtraction angiography. The prior determination of target vessels for TASL demands familiarity of vascular anatomy and can be difficult when variations are caused by diseases. Here we propose to expand the use of pseudocontinuous ASL and harmonic encoding to detect flow territory, arterial source location, and off resonance with minimal prior planning.