Patent ID: 8929984
Filing Date: 2015-01-06
Classification: A61N

Abstract:
1. A method of cardiac pacing employing a right ventricular electrode and a plurality of left ventricular electrodes, comprising: a) pacing a left ventricular electrode using a first A-V delay; b) measuring activation times at other ones of the left ventricular electrodes and at one or more right ventricular electrodes in response to pacing the left ventricular electrode; c) determining a weighted fusion index associated with the first A-V delay; d) pacing the left ventricular electrode using a second A-V delay; e) measuring activation times at other ones of the left ventricular electrodes and at the one or more right ventricular electrodes; f) determining a weighted fusion index for the second A-V delay; g) comparing weighted fusion indices for the first and the second A-V delays; and h) selecting an optimal A-V delay in response to comparing weighted fusion indices for the first and the second A-V delays, wherein the weighted fusion indices are determined using: FI(j,A)=Σ