Pressure gradient vs. flow relationships to characterize the physiology of a severely stenotic aortic valve before and after transcatheter valve implantationNils P. Johnson, K. Lance Gould, Jo M. Zelis et al.|European Heart Journal|2018Cited by 56
Stress Aortic Valve Index (SAVI) with Dobutamine for Low-Gradient Aortic Stenosis: A Pilot StudyJo M. Zelis, Nils P. Johnson, Pim A.L. Tonino et al.|Structural Heart|2019Cited by 12
Rationale and design of SAVI-AoS: A physiologic study of patients with symptomatic moderate aortic valve stenosis and preserved left ventricular ejection fractionRob Eerdekens, Nils P. Johnson, Nikolaos Kakouros et al.|IJC Heart & Vasculature|2022Cited by 7
TCT-279 Baseline and dobutamine stress hemodynamic physiology of the stenotic aortic valve before and after transcatheter valve implantationNils P. Johnson, K. Lance Gould, Jo M. Zelis et al.|Journal of the American College of Cardiology|2017Cited by 0
TCT-147 Stress Aortic Valve Index (SAVI) With Dobutamine for Low-Gradient Aortic StenosisJo M. Zelis, Nils P. Johnson, D. T. Johnson et al.|Journal of the American College of Cardiology|2019Cited by 0