More articles from BRAIN
- Evaluation of Virtual Noncontrast Images Obtained from Dual-Energy CTA for Diagnosing Subarachnoid Hemorrhage
A group of 37 patients underwent noncontrast CT and dual-energy CTA for diagnosis of SAH. From the latter, virtual noncontrast images were reconstructed and assessed for SAH. Agreement between true and virtual noncontrast images for diagnosis of SAH was 92%. Thus, virtual noncontrast CT images reliably diagnosed SAH while reducing radiation dose. (See accompanying commentary by Brisman.)