This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Request Permissions Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by FEIGENBAUM, H. Articles by CHANG, S. Search for Related Content PubMed PubMed Citation Articles by FEIGENBAUM, H. Articles by CHANG, S.

(Circulation. 1970;41:615.)
© 1970 American Heart Association, Inc.

---

Identification of Ultrasound Echoes from the Left Ventricle by Use of Intracardiac Injections of Indocyanine Green

HARVEY FEIGENBAUM M.D.¹; JOHN M. STONE M.D.¹; DON A. LEE M.D.¹; WILLIAM K. NASSER M.D.¹; SONIA CHANG B.A.¹

¹ From the Department of Medicine, Indiana University School of Medicine, and the Krannert Institute of Cardiology, Marion County General Hospital, Indianapolis, Indiana.

This study was designed to identify the ultrasound echoes originating from the left ventricle. Injections of indocyanine green and saline were made directly in the left ventricular cavity via a cardiac catheter in patients undergoing routine diagnostic cardiac catheterization. The injections produced a cloud of echoes that filled the left ventricular cavity and outlined the left side of the interventricular septum and the endocardial surface of the posterior left ventricular wall. The results of this study verified the origin of echoes that are vital to the ultrasound technics for the detection of pericardial effusion, left ventricular wall size, left ventricular cavity size, and left ventricular stroke volume. This study also provided ways of distinguishing between the true left ventricular wall echoes and intracavitary echoes that often cause confusion.

Key Words: Echocardiography • Ultrasound cardiography

Submitted on September 11, 1969
Accepted on December 2, 1969

This article has been cited by other articles:

				S. B. Feinstein The powerful microbubble: from bench to bedside, from intravascular indicator to therapeutic delivery system, and beyond Am J Physiol Heart Circ Physiol, August 1, 2004; 287(2): H450 - H457. [Abstract] [Full Text] [PDF]

				R. A. Meyer History of Ultrasound in Cardiology J. Ultrasound Med., January 1, 2004; 23(1): 1 - 11. [Full Text] [PDF]

				H. Feigenbaum Evolution of Echocardiography Circulation, April 1, 1996; 93(7): 1321 - 1327. [Full Text]