PT - JOURNAL ARTICLE AU - T. Struffert AU - Y. Deuerling-Zheng AU - S. Kloska AU - T. Engelhorn AU - S. Lang AU - A. Mennecke AU - M. Manhart AU - C.M. Strother AU - S. Schwab AU - A. Doerfler TI - Dynamic Angiography and Perfusion Imaging Using Flat Detector CT in the Angiography Suite: A Pilot Study in Patients with Acute Middle Cerebral Artery Occlusions AID - 10.3174/ajnr.A4383 DP - 2015 Oct 01 TA - American Journal of Neuroradiology PG - 1964--1970 VI - 36 IP - 10 4099 - http://www.ajnr.org/content/36/10/1964.short 4100 - http://www.ajnr.org/content/36/10/1964.full SO - Am. J. Neuroradiol.2015 Oct 01; 36 AB - BACKGROUND AND PURPOSE: Perfusion and angiographic imaging using intravenous contrast application to evaluate stroke patients is now technically feasible by flat detector CT performed by the angiographic system. The aim of this pilot study was to show the feasibility and qualitative comparability of a novel flat detector CT dynamic perfusion and angiographic imaging protocol in comparison with a multimodal stroke MR imaging protocol.MATERIALS AND METHODS: In 12 patients with acute stroke, MR imaging and the novel flat detector CT protocol were performed before endovascular treatment. Perfusion parameter maps (MTT, TTP, CBV, CBF) and MIP/volume-rendering technique images obtained by using both modalities (MR imaging and flat detector CT) were compared.RESULTS: Comparison of MIP/volume-rendering technique images demonstrated equivalent visibility of the occlusion site. Qualitative comparison of perfusion parameter maps by using ASPECTS revealed high Pearson correlation coefficients for parameters CBF, MTT, and TTP (0.95–0.98), while for CBV, the coefficient was lower (0.49).CONCLUSIONS: We have shown the feasibility of a novel dynamic flat detector CT perfusion and angiographic protocol for the diagnosis and triage of patients with acute ischemic stroke. In a qualitative comparison, the parameter maps and MIP/volume-rendering technique images compared well with MR imaging. In our opinion, this flat detector CT application may substitute for multisection CT imaging in selected patients with acute stroke so that in the future, patients with acute stroke may be directly referred to the angiography suite, thereby avoiding transportation and saving time.FD-CTflat detector CTFD-CTAflat detector CT dynamic perfusion and angiographic imagingFD-CTPflat detector CT dynamic perfusionMRPMR perfusion imagingMS-CTmultisection CT