Noninvasive visualization of the left main coronary artery by cross sectional echocardiography

A. E. Weyman, Harvey Feigenbaum, J. C. Dillon, K. W. Johnston, R. C. Eggleton

Research output: Contribution to journalArticle

134 Citations (Scopus)

Abstract

Real time cross sectional echocardiographic studies of the left main coronary artery (LMCA) were performed in 15 normal patients, 15 patients with angiographically proven coronary artery disease but normal left main coronary segments, three patients with greater than 75% obstruction of the left main coronary artery, and one patient with a large aneurysm of the left main coronary artery. In normal subjects the LMCA evaginates from the inferolateral wall of the aorta. The artery appears as two dominant parallel linear echoes separated by a clear space representing the lumen of the vessel. The LMCA courses beneath the right ventricular outflow tract and can generally be followed to its expected point of bifurcation. Confirmation that this structure was in fact the LMCA was obtained by injection of cardiogreen dye directly into the LMCA in two cases and by visualization of dye in this structure following aortic flush in one case. In the three cases with obstructive lesions of the LMCA, there was an area of inward bending of the parallel vessel wall echoes resulting in varying degrees of narrowing of the arterial lumen. In the case with the aneurysmal dilatation of the LMCA, an echo free circular bulge in the distal portion of the LMCA was recorded. This study demonstrates the feasibility of recording the left main coronary artery using the cross sectional echocardiographic technique.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalCirculation
Volume54
Issue number2
StatePublished - 1976

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Echocardiography
Coronary Vessels
Coloring Agents
Indocyanine Green
Feasibility Studies
Aneurysm
Aorta
Coronary Artery Disease
Dilatation
Arteries
Cross-Sectional Studies
Injections

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Weyman, A. E., Feigenbaum, H., Dillon, J. C., Johnston, K. W., & Eggleton, R. C. (1976). Noninvasive visualization of the left main coronary artery by cross sectional echocardiography. Circulation, 54(2), 169-174.

Noninvasive visualization of the left main coronary artery by cross sectional echocardiography. / Weyman, A. E.; Feigenbaum, Harvey; Dillon, J. C.; Johnston, K. W.; Eggleton, R. C.

In: Circulation, Vol. 54, No. 2, 1976, p. 169-174.

Research output: Contribution to journalArticle

Weyman, AE, Feigenbaum, H, Dillon, JC, Johnston, KW & Eggleton, RC 1976, 'Noninvasive visualization of the left main coronary artery by cross sectional echocardiography', Circulation, vol. 54, no. 2, pp. 169-174.
Weyman, A. E. ; Feigenbaum, Harvey ; Dillon, J. C. ; Johnston, K. W. ; Eggleton, R. C. / Noninvasive visualization of the left main coronary artery by cross sectional echocardiography. In: Circulation. 1976 ; Vol. 54, No. 2. pp. 169-174.
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