Left ventricular speckle tracking echocardiographic evaluation before and after TAVI oleh Vasiliki Tsampasian, Vasileios Panoulas, Richard J Jabbour, Neil Ruparelia, Iqbal S Malik, Nearchos Hadjiloizou, Angela Frame, Sayan Sen, Nilesh Sutaria, Ghada W Mikhail, Petros Nihoyannopoulos