SWAN looks very interesting. It is new within the past 4 or 5 years. Susceptibility Weighted ANgiography. It is a quick way to visualize the vascular structure. I had an MRI/MRA years ago. It took quite some time. The SWAN MRI takes less than 10 minutes and provides a 3D image vs slices for the old method.

I hope Emergency Rooms start doing these rather than CT Scans. They are so much safer.