In-Vitro Pulsatile Flow Testing of Prosthetic Heart Valves: A Round-Robin Study by the ISO Cardiac Valves Working Group

...A round-robin study carried out in 2005 in accordance with ISO 5840:2005 revealed significant variabilities in prosthetic heart valve hydrodynamic performance measurements among the participating laboratories. In order to re-examine the inter-laboratory variability based on the “state-of-the-art” under ISO 5840-1 and 5840-2:2015, the ISO Cardiac Valve Working Groups decided in 2016 to repeat the round-robin study.... … took part in the round-robin study, including one academic laboratory (Helmholtz Institute of the RWTH University, Aachen, Germany), three testing service providers (BDC Laboratories, Wheat Ridge, CO; Medical Implant …

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