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Copyright ©The Author(s) 2021.
World J Cardiol. Jul 26, 2021; 13(7): 204-210
Published online Jul 26, 2021. doi: 10.4330/wjc.v13.i7.204
Figure 3
Figure 3 Two-dimensional transthoracic echocardiogram in apical four-chamber views showing the eustachian valve as a mobile, elongated structure (orange arrows) projecting into the right atrial cavity, showing an undulating motion during cardiac cycles. A: Systole; B: Diastole. RA: Right atrium; RV, right ventricle.