Quantitative Evaluation of the Relationship between T-Wave-Based Features and Serum Potassium Level in Real-World Clinical Practice
Linear correlations between features of T-norm and serum potassium level. There is no linear correlation in all leads: II (a), V3 (b), V4 (c), V5 (d), V6 (e), and the lead with the most prominent T-wave (f). Data of the normal ECG subgroup (normal ECG or otherwise normal ECG) is marked with orange color and their correlation coefficients are marked with ‘’. Absolutely no correlation was found in all leads. T-norm: normalized feature.