Tricuspid annular and right atrial volume changes are associated in healthy adults-insights from the three-dimensional speckle-tracking echocardiographic MAGYAR-Healthy Study.

3DSTE is suitable for non-invasive assessment of TA dimensions and RA volumes at the same time using the same 3D echocardiographic dataset. Significant associations between TA size and RA volumes exist in healthy circumstances. Strong associations in case of dilation of TA in the presence of higher RA volumes could partly explain functional tricuspid regurgitation later developing in subjects in sinus rhythm.