Fig. 3From: Flow reserve fraction: the optimal choice in lesion assessing and interventional guiding for patient with unstable angina pectoris and intermediate lesion wrapped with myocardial bridge: a case reportIntra-coronary injection of adenosine, ECG monitoring showed ST-segment elevation of 0.2ā0.6Ā mV in II and III leads, and frequent premature ventricular beatsBack to article page