Abstract #3095

Dynamic 3D Angiography with Pseudo Continuous Arterial Spin Labeling(PCASL) and Accelerated 3D Radial Acquisition

Huimin Wu¹, Walter F. Block², Patrick A. Turski³, Charles A. Mistretta¹, Kevin M. Johnson¹

¹Medical Physics, University of Wisconsin-Madison, Madison, WI, United States; ²Biomedical Engineering, University of Wisconsin-Madison; ³Radiology, University of Wisconsin-Madison

4D intracranial angiography with a pseudo continuous Arterial Spin Labeling (PCASL) tagging scheme and accelerated radial sampling pattern has been implemented. A feasibility study has been done on healthy volunteers and AVM patients and time-resolved images were acquired with temporal resolution of 200 msec. It has been demonstrated that the dynamic PCASL-VIPR technique can acquire a time series of dynamic inflow images with high 3D isotropic spatial resolution, and whole head coverage in a 7-minute scan. Quantitative analysis using time-of-arrival maps can also be performed on the time-resolved images.