TY - CHAP M1 - Book, Section TI - Echocardiography in Cardiac Surgery A1 - Harrington, Colleen A1 - Mora, Samia A1 - Wu, Katherine C. A2 - Yuh, David D. A2 - Vricella, Luca A. A2 - Yang, Stephen C. A2 - Doty, John R. Y1 - 2014 N1 - T2 - Johns Hopkins Textbook of Cardiothoracic Surgery AB - Since 1976, echocardiography (echo) has been used to evaluate cardiac structure and function. Echo uses sound in the high-frequency range (2–10 MHz). Frequency ranges between 2 and 5 MHz are typically used for imaging adults, while frequencies of 7.5 to 10 MHz are used for children and specialized adult applications. The transducer contains a piezoelectric crystal that converts electrical to sound energy, producing sound waves that are transmitted in the form of a beam. A complete transthoracic echocardiogram (TTE) consists of a group of interrelated applications including two-dimensional (2D) anatomic imaging, M-mode, and three Doppler techniques: pulsed-wave (PW), continuous-wave (CW), and color-flow (CF) imaging.1–7 In addition, the quantification of cardiac chamber dimensions, areas, and volumes is an important aspect of a complete examination. Using a combination of these ultrasound techniques, one can assess the anatomy and function of the cardiac valves, myocardium, and pericardium. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesssurgery.mhmedical.com/content.aspx?aid=1104594372 ER -