SAN DIEGO — New research indicates that transcranial Doppler is superior to transesophageal echocardiography for the detection of patent foramen ovale. Patients with PFO are at increased risk ...

The transcranial doppler tool uses ultrasound to look at blood flow in the brain's major arteries — and unlike other procedures, it's minimally invasive and doesn't expose patients to radiation.

Objective To determine how a history of 3+ concussions alters elevations in cerebral blood velocity (CBV) in the posterior cerebral artery (PCA) during visual tasks. Design Retrospective Cohort.