Recommendations for Chamber Quantification: A Report from the American Society of Echocardiography’s Guidelines and Standards Committee and the Chamber Quantification Writing Group, Developed in Conjunction with the European Association of Echocardiography, a Branch of the European Society of Cardiology

Quantification of cardiac chamber size, ventricular mass, and function ranks among the most clinically important and most frequently requested tasks of echocardiography. Standardization of chamber quantification has been an early concern in echocardiography and recommendations on how to measure such fundamental parameters are among the most often cited articles in the field.1,2 During the last decades, echocardiographic methods and techniques have improved and expanded dramatically. Improvements in image quality have been significant, as a result of the introduction of higher-frequency transducers, harmonic imaging, fully digital machines, left-sided contrast agents, and other technologic advancements.