Poster session IIThursday 9 December 2010, 14:00-18:00P392CRT optimisation: improving echocardiographic techniques by accommodatingn biological variability within different echocardiographic parametersP393European reference ranges for conduit arte

摘要

Background: In optimisation of CRT (and even selection for implantation) we may underestimate the impact of beat-to-beat variation on echo measurements. This can be quantified in the optimisation process, in which genuine small changes in cardiac function (signal) must be detected amongst beat-to-beat variation (noise).