Systems and methods for estimating intracardiac distance using sensed electrical pulses

摘要

The present disclosure provides systems and methods for estimating a change in an intracardiac distance between systole and diastole. A system includes a pacing electrode configured to generate a pacing pulse, a sensing electrode configured to measure an electrical artifact corresponding to the pacing pulse, and a computing device communicatively coupled to the pacing electrode and the sensing electrode, the computing device configured to determine a first amplitude of a first electrical artifact measured at the sensing electrode during systole, determine a second amplitude of a second electrical artifact measured at the sensing electrode during diastole, and calculate a mechanical index based on the first amplitude and the second amplitude, wherein the mechanical index is representative of the change in the intracardiac distance.

主权项

1. A system for estimating a change in an intracardiac distance between systole and diastole, the system comprising:
a pacing electrode configured to generate a pacing pulse; a sensing electrode configured to measure an electrical artifact corresponding to the pacing pulse; and a computing device communicatively coupled to the pacing electrode and the sensing electrode, the computing device configured to:
determine a first amplitude of a first electrical artifact measured at the sensing electrode during systole, the first electrical artifact corresponding to a first pacing pulse generated by the pacing electrode;determine a second amplitude of a second electrical artifact measured at the sensing electrode during diastole, the second electrical artifact corresponding to a second pacing pulse generated by the pacing electrode; andcalculate a mechanical index based on the first amplitude and the second amplitude, wherein the mechanical index is representative of the change in the intracardiac distance.