Introduction: Tricuspid Annular Plane Systolic Excursion (TAPSE) is measured in apical 4-chamber (4CH) view in transthoracic echocardiography (TTE). In Transesophageal echocardiography (TEE), it is measured by Mid esophageal 4 chamber view (ME 4CH) and modified deep transgastric (dTG) view. The aim of our study was tocompare different methods of TAPSE measurement. Materials and methods: Patients posted for elective Off Pump Coronary Artery Bypass Graft Surgery (OPCAB) were included in the study. TAPSE was measured after induction by TTE (4CH) view preoperatively and by TEE (ME 4CH and dTG) both preoperatively and postoperatively. Result and analysis: Measurements in dTG RV view at 0° showed best agreement with standard TTE measurements with intraclass-correlation 0.987 and 95% confidence interval 0.917-0.995. In Mid Esophageal Four Chamber (ME 4CH) view showed agreement of measurements with intraclass-correlation 0.904 and 95% confidence interval - 0.096-0.977 and on average estimated TAPSE values 1.54 mm lower than TTE. TAPSE by pre-operative Mid Esophageal Four Chamber (ME 4CH) view and Deep Transgastric Right Ventricular view suggested strong positive correlation by intraclass-correlation 0.945 with a 95% confidence interval of -0.013 to 0.987. In post-operative period Mid Esophageal Four Chamber (ME 4CH) view and Deep Transgastric Right Ventricular view suggested intraclasscorrelation 0.945 and 95% confidence interval -0.015 to 0.987. Conclusion: Evaluation of RV function by means of TAPSE measurement in TEE can be performed with an excellent level of agreement compared to TTE.