Fig. 4 | Scientific Reports

Fig. 4

From: Prediction of left ventricular systolic dysfunction in left bundle branch block using a fine-tuned ECG foundation model

Fig. 4

Local explanation of the electrocardiographic (ECG) signal for left ventricular systolic dysfunction (LVSD) prediction using DeepLIFT. The areas highlighted in red indicate the parts of the ECG signal that contributed most to the model’s prediction. Each lead (I, II, III, aVR, aVL, aVF, V1-V6, and the rhythm strip) is displayed with intensity proportional to the importance of the segment to the prediction. The color bar at the bottom represents the magnitude of the contribution, with higher values indicating greater importance.

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