The yield of DSA in patients with SAH and negative initial noninvasive neurovascular examinations (CTA or MRA) is not well-understood. This study aimed to determine the yield of DSA for the detection of causative vascular lesions in this clinical scenario.
Delgado Almandoz, J. E., Crandall, B. M., Fease, J. L., Scholz, J. M., Anderson, R. E., Kadkhodayan, Y., & Tubman, D. E. (2013, April). Diagnostic yield of catheter angiography in patients with subarachnoid hemorrhage and negative initial noninvasive neurovascular examinations. American Journal of Neuroradiology. https://doi.org/10.3174/ajnr.A3291