Josh Liu1, Zhensen Chen1, Niranjan Balu1, and Chun Yuan1
1Electrical and Computer Engineering, University of Washington, Seattle, WA, United States
1Electrical and Computer Engineering, University of Washington, Seattle, WA, United States
An algorithm that identifies blood flow directions
within vessels of the Circle of Willis based on dynamic MRA signals was
developed, and an ~85% accuracy was achieved.
Figure 4: Two Circle of Willis schematics demonstrating normal and abnormal blood flow directions. Schematic on the left shows all normal vessel flow directions (blue); schematic on the right shows abnormal flow direction in the left PComm (red).
Figure 1: Whole brain dMRA (temporal resolution: ~100 ms) scan obtained with iSNAP dynamic MRA. Shown above are 9 out of 21 frames in a scan.
