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[Quantification of ventricular volume. Comparative study of 2 angiographic methods]
Insights
The Green method accurately calculates left ventricular volumes and ejection fraction in heart disease patients. This method provides reliable results comparable to established techniques, except in cases of large ventricular aneurysms.
Area of Science:
- Cardiology
- Medical Imaging
- Cardiac Physiology
Background:
- Left ventricular (LV) volumes and ejection fraction (EF) are critical indicators of cardiac function.
- Accurate measurement of these parameters is essential for diagnosing and managing various cardiopathies, including ischemic heart disease.
- Existing methods for LV volume calculation have varying degrees of complexity and accuracy.
Purpose of the Study:
- To evaluate the accuracy and reliability of the Green method for calculating left ventricular volumes and ejection fraction.
- To compare the Green method's results with those obtained by the established Sandler and Dodge method.
- To determine the applicability of the Green method across different types of ventricular contraction patterns.
Main Methods:
- Seventy-eight patients with diverse cardiopathies, predominantly ischemic heart disease, were included.
- Cineangiocardiograms were analyzed to assess ventricular contraction patterns (normal vs. abnormal).
- Left ventricular volumes were calculated using the Green method and compared with calculations from the Sandler and Dodge method.
Main Results:
- A very good correlation was observed between the left ventricular volumes calculated by the Green method and the Sandler and Dodge method.
- The Green method demonstrated reliable results irrespective of the ventricular contraction type.
- The accuracy of the Green method was unaffected, except in patients with large ventricular aneurysms.
Conclusions:
- The Green method is a reliable and confident approach for calculating left ventricular volumes and ejection fraction.
- While biplane or Sandler and Dodge's monoplane methods are preferable, the Green method offers a viable alternative.
- The Green method's utility is confirmed for most cardiopathy patients, excluding those with significant ventricular aneurysms.
Abstract:
The left ventricular volumes and the ejection fraction were measured in 78 patients who had different cardiopathies, in more than 50% the diagnosis of ischaemic heart disease of coronary origin was made. Every cineangiocardiogram was carefully observed to find those who had normal and abnormal ventricular contraction. The ventricular volumes were calculated by the Green method and afterwards the results were compared with the values obtained by the Sandler and Dodge method. A very good correlation was found between the two methods and we got the conclusion that although it is preferable to calculate ventricular volumes and the ejection fraction with biplane method or with Saudler and Dodge's monoplane, the results of the present work permit the use of Green's method in calculating ventricular volumes and obtaining confident results, independently of the ventricular contraction type with the exception of those who have large ventricular aneurisms.