Bővebb ismertető
PREFACEThe eighth volume of Progress in Cardiology returns to a format set in Volume 5. A symposium on a special topic is presented at the beginning of the book.Great strides have been made in the science of echocardiography over the last five years since Shah and Gramiak reviewed the clinical applications of M-mode echocardiography for Progress in Cardiology, Volume 3, 1974. Although it was then possible to summarize existing applications within the space constraints of one chapter, it was predicted that development of a cross-sectional method, especially one using a phased array system with a compact multielement transducer, would open an exciting field of new applications. Echocardiography has indeed become increasingly important as a noninvasive method of investigation, and we believe it is timely to review the field. We have therefore asked Dr. Pravin M. Shah to edit this Symposium on Echocardiography, which includes contributions from a number of leading investigators in the field.In Chapter I, Rogers, Feigenbaum, and Weyman present a comprehensive review of applications of both M-mode and cross-sectional echocardiography for quantitative study of cardiac chambers; echocardiography has surpassed in accuracy both chest x-ray and electrocardiography for evaluation of chamber size. In the next chapter, Kisslo discusses the role of cross-sectional echocardiography in the study of regional wall motion, an area of great practical importance for the evaluation of patients with coronary artery disease. This is a developing application in which great progress is to be expected with computer enhancement of cross-sectional images. In Chapter 3 Traill and Gibson review their approaches to the study of left ventricular relaxation and diastolic filling using both M-mode and cross-sectional techniques. Gura and Tajik summarize the applications of echocardiography in infective endocarditis in Chapter 4. Chapter 5 by Shah describes physiological determinants of pulmonary valve motion and