Systems and methods for quantifying and providing indicia of ST-segment resolution in an ECG signal

摘要

Systems and methods are provided for quantifying and providing indicia of ST-segment resolution in an electrocardiogram (ECG) signal. A receiver acquires an electrocardiogram (ECG) signal that includes an ST-segment. A processor processes the ECG signal to determine values for the ST-segment deviation relative to an isoelectric baseline. A user is allowed to provide a baseline signal to the processor. The processor responds to the baseline signal by marking a baseline ST-segment value corresponding to a baseline time. A user interface displays a linear graphical trend of variations in the measured ST-segment values relative to the baseline ST-segment value. In certain embodiments, the processor detects user-selected trigger events such as post-intervention ST deviation relative to the baseline time and the baseline ST-segment value, and provides indicia of the trigger event. In addition, or in other embodiments, a verbal annunciation of a percent ST-segment resolution is provided.

主权项

1. A method for dynamically monitoring ST-segment resolution in a patient, the method comprising:
acquiring an electrocardiogram (ECG) signal that includes, for each of a plurality of detected heart beats, an ST-segment between a QRS complex and a T wave; at a user selected time, determining, using a processor, a baseline value for the ST-segment relative to an isoelectric value; measuring, using the processor, a plurality of ST-segment values relative to the isoelectric value for a plurality of heart beats over time; displaying a linear graphical trend of variations in the measured ST-segment values relative to the baseline value; detecting a trigger event relative to at least one of the user selected time and the baseline value; and providing indicia of the trigger event; wherein detecting the trigger event comprises determining that an ST-segment resolution percentage has reached a threshold value; and wherein providing indicia of the trigger event comprises displaying marker at a location on the linear graphical trend corresponding to an elapsed time when the ST-segment resolution percentage reaches the threshold, wherein the marker indicates the elapsed time and the ST-segment resolution percentage.