Patent ID: 7613500
Filing Date: 2009-11-03
Classification: A61B,G06T

Abstract:
1. A method for assisting the planning of an interventional biventricular pacing procedure, said method comprising: acquiring a volume of data of a heart of a patient in diastolic phase and in a plurality of phases of systole and early diastole, said acquired volume of data thereby becoming an image dataset, the heart having a left ventricle (LV), LV myocardium, a myocardial wall, an LV wall, and a cardiac cycle having a plurality of phases; extracting a surface of the left ventricle (LV) and the LV myocardium by segmenting the image dataset; dividing the LV into myocardial segments or into a plurality of short axis slices using the segmented image dataset; detecting wall motion of each myocardial segment or short axis slice between phases of the cardiac cycle with respect to a reference phase; generating a plurality of maps based on the detected wall motion for each myocardial segment or short axis slice at each of the phases of the cardiac cycle; localizing a region of the LV represented by the generated map most recently attaining maximum displacement and a region most recently attaining maximum velocity; generating a plurality of 2D or 3D renderings including renderings indicating at least one of time delays of contraction, a maximum displacement and a maximum velocity; overlaying onto a first map a first generated rendering indicating at least one of time delays of contraction, a maximum displacement and a maximum velocity; and overlaying onto a second map a second generated rendering indicating at least one of time delays of contraction, a maximum displacement and a maximum velocity that is not indicated in the first generated rendering.