Quantitative cine-left ventriculography
10.3348/jkrs.1981.17.3.484
- Author:
Tae Hwan LIM
;
Man Chung HAN
- Publication Type:Original Article
- MeSH:
Aortic Valve;
Cardiac Complexes, Premature;
Heart;
Heart Valve Diseases;
Heart Valves;
Heart Ventricles;
Methods;
Myocardial Ischemia;
Nipples;
Thorax;
Ventricular Function, Left
- From:Journal of the Korean Radiological Society
1981;17(3):484-491
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The volumetry by cineangiocardiography is known to have the most diagnostic and prognostic value in theevalutaion of various valvular heart diseases and ischemic heart diseases. Athough many authors favor thearea-length method for the voulmetry of left ventricle, 45degrees RAO projection seems to be more simple,inexpensive and acurate technique, considering the positional relationship of cardiac valves and obliquity of thelong axis of left ventricle within the chest cage. Authors present the anatomical, geometrical and radiologicalbasis for the superiority of 45degrees RAO projection by analyzing 20 normal heart specimen and 115cineangiocardiograms of valvular heart disease, and the results as follows; 1. Blood flow and motility of themitral and aortic valves can be more clearly demonstrated by 45degrees RAO projection than by AP view. 2. The longdiameter of left ventricular silhouette made 45degrees RAO projection reflects 90% or more of real diameter. 3. InRAO 45degrees position, patient's left nipple is optimal and convenient level for the ruler offering accuratemagnification coefficient of left ventricle. 4. Ejection fration after the extrasystole is exaggerated regardlessof the left ventricular function, so it is desirable to exclude the 2 or 3 beats after extrasystole.
