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 Google Scholar Google Scholar Articles by WONG, P. C. Y. Articles by SANDERS, C. A. Search for Related Content PubMed PubMed Citation Articles by WONG, P. C. Y. Articles by SANDERS, C. A.

(Circulation. 1965;32:425.)
© 1965 American Heart Association, Inc.

---

A Nomogram for Estimation of the Cardiac Valve Areas

PETER C. Y. WONG M.B., B.S. (Hong Kong)¹ CHARLES A. SANDERS M.D.¹

¹ From the Department of Medicine, Harvard Medical School, and the General Medical Service of the Massachusetts General Hospital, Boston, Massachusetts.

A nomogram for the estimation of cardiac valve areas by the Gorlin formula has been described. The advantages of the nomographic approach are four-fold: (1) it results in considerable time saving in doing mathematical calculations; (2) it lessens the chance of mathematical error; (3) it provides a rapid means of checking the accuracy of a valve area calculated in the conventional manner; (4) it facilitates the understanding of the relationships between the various factors employed in the valve area formula.

As a result, the nomogram will be a useful adjunct in the operation of the cardiac catheterization laboratory and in the education of its physician personnel.