Lateral MI Explains the Presence of Prominent R Wave (R ≥ S) in V1

It is necessary to clarify if the presence of a prominent R wave in V1, in post–myocardial infarction (MI) patients, is due to the involvement of the posterior wall (currently inferobasal segment) or the lateral wall (as has been demonstrated recently by electrocardiographic contrast‐enhanced cardiac magnetic resonance [ECG‐CE‐CMR] correlations studies).

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