Combination of Noninvasive Neurovascular Imaging Modalities in Stroke Patients: Patterns of Use and Impact on Need for Digital Subtraction Angiography

In our experience, a combination of CTA and MRA was frequently used in patients in whom the initial noninvasive imaging was determined insufficient. The combination of findings from CTA and MRA were considered adequate in a large portion of patients resulting in a lower requirement for DSA and higher treatment impact from DSA.