Document Type : Original Article


1 Division of cardiovascular medicine; Vascular and endovascular surgery research center; Mashhad University of Medical Sciences, Mashhad, Iran

2 Quem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran

3 Ph.D., Macroanatomy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran

4 MD, Clinical Research Development Unit, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran


Background: Reliability and validity of echocardiography are important issues. For this era definition of normal cases requires expression of natural physiological differences including ethnicity.

Objective: As the only few studies have been conducted to obtain normal measures in echocardiography, we persuade to evaluate normal values in mitral and tricuspid valves in the Iranian population.

Methods: This study was conducted in a tertiary center, in echocardiography lab, over a six-month period. Eighty-seven Iranian healthy volunteers were entered in this study with no health issue. The three and two-dimensional echocardiography of tricuspid and mitral valves were performed. Normal data of the investigated indicators were achieved. Cases were divided into six age groups with a 12-year age difference.

Results: All participants were from 18 to 90 years old, 35 males (40/2 %) and 52 females (59/8%). This research illustrated a difference between men and female participants by considering tricuspid and mitral valve indices (P-value<0.05). Moreover, a difference was shown in various age groups regarding to MV3D1, MV2CH1, MVPLAX1, MV3D2, MV4CH1, MV2CH1, MV ALAX2, MV2CH2, MV TENTING AREA, MV AREA indices at the mitral valve, and SAX2 TV4CH1, TV4CH2, TVSAX1, TVRVIF2 indices at the tricuspid valve (P-value<0.05).

Conclusions: Our results confirmed that both gender and age had an impact on echocardiographic parameters, with a trend to decline in the measurements after 65 years with the greatest dimensions obtained after 42 years of old.