Fraser, Alan G.Sutherland, George R.Bijnens, Bart2025-10-202025-10-202023Fraser AG, Sutherland GR, Bijnens B. In memoriam: Liv Hatle 1936–2023, pioneering echocardiologist. Eur Heart J Cardiovasc Imaging. 2023 Oct 27;24(11):1425-9. DOI: 10.1093/ehjci/jead2062047-2412http://hdl.handle.net/10230/71554Professor Liv Hatle died in June 2023. In Trondheim, Norway, in the mid-1970s she was the first cardiologist to be given access to a PEDOF Doppler ultrasound system for clinical examinations, which she used to investigate cardiovascular haemodynamics non-invasively. She went on to establish methods for estimating valve gradients, pulmonary arterial pressure, and left ventricular diastolic function, that are still used today in millions of patients worldwide.application/pdfeng© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1093/ehjci/jead206Liv HatleDoppler echocardiographyHeart valve diseaseDiastolic functioninfo:eu-repo/semantics/openAccess