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Wu, X. (author), Saaid, Hicham (author), Voorneveld, J.D. (author), Claessens, Tom (author), Westenberg, Jos J.M. (author), de Jong, N. (author), Bosch, Johan G. (author), Kenjeres, S. (author)Purpose: Intraventricular blood flow dynamics are associated with cardiac function. Accurate, noninvasive, and easy assessments of hemodynamic quantities (such as velocity, vortex, and pressure) could be an important addition to the clinical diagnosis and treatment of heart diseases. However, the complex time-varying flow brings many...journal article 2023
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Westenberg, Jos J.M. (author), van Assen, Hans C. (author), van den Boogaard, Pieter J. (author), Goeman, Jelle J. (author), Saaid, Hicham (author), Voorneveld, J.D. (author), Bosch, Johan (author), Kenjeres, S. (author), Claessens, Tom (author)Purpose: To assess errors associated with EPI-accelerated intracardiac 4D flow MRI (4DEPI) with EPI factor 5, compared with non-EPI gradient echo (4DGRE). Methods: Three 3T MRI experiments were performed comparing 4DEPI to 4DGRE: steady flow through straight tubes, pulsatile flow in a left-ventricle phantom, and intracardiac flow in 10...journal article 2021
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Voorneveld, J.D. (author), Saaid, H. (author), Schinkel, C.V. (author), Radeljic, Nikola (author), Lippe, Boris (author), Gijsen, F.J.H. (author), van der Steen, A.F.W. (author), de Jong, N. (author), Claessens, Tom (author), Vos, H.J. (author), Kenjeres, S. (author), Bosch, Johan G. (author)Left ventricular (LV) blood flow is an inherently complex time-varying 3-D phenomenon, where 2-D quantification often ignores the effect of out-of-plane motion. In this study, we describe high frame rate 4-D echocardiographic particle image velocimetry (echo-PIV) using a prototype matrix transesophageal transducer and a dynamic LV phantom for...journal article 2020