Are There Geographic Differences in 2D/3D Right Atrial Size? Results of the World Alliance of Societies of Echocardiography (WASE) Normal Values Study

¹University of Chicago, Chicago, IL;

²MedStar Health Research Institute, Washingon, DC;

³TOMTEC Imaging Systems GmbH, Unterschleissheim, Germany;

⁴Jeyalakshmi Heart Center, Madurai, India;

⁵University of Salerno, Salerno, Italy;

⁶University of Tokyo, Tokyo, Japan;

⁷Hospitales Mac Bernardette, Guadalajara, Mexico;

⁸Medanta Heart Institute, Gurgaon, India;

⁹University of Washington, Seattle, WA;

¹⁰King's College Hospital, London, United Kingdom;

¹¹University of Padova, Padova, Italy;

¹²First Cardiology Consultants Hospital, Lagos, Nigeria;

¹³Samsung Medical Center, Seoul, Republic of Korea;

¹⁴Albert Einstein Hospital, Sao Paulo, Brazil;

¹⁵Universidad Nacional de la Plata, Buenos Aires, Argentina;

¹⁶Rajaie Cardiovascular Medical and Research Center, Tehran, Islamic Republic of Iran;

¹⁷Genesis Care, Brisbane, Austria;

¹⁸University of Occupational and Environmental Health, Kitakyushu, Japan;

¹⁹Toronto General Hospital, University of Toronto, Toronto, ON, Canada;

²⁰Philippine Heart Center, Quezon City, Philippines;

²¹Qilu Hospital of Shandong University, Jinan, China;

²²MedStar Health Research Institute, Washington, DC