P6315Evidence for improved cognitive function following transcatheter aortic valve implantation in elderly patients with severe aortic stenosis - Brain perfusion SPECT imaging study. (28th August 2018) - Tsuchiya, S; Matsumoto, Y; Kikuchi, Y; Sugisawa, J; Hao, K; Takeuchi, M; Takahashi, J; Kawamoto, S; Kumagai, K; Wagatsuma, T; Saiki, Y; Shimokawa, H