[Quantification of ventricular volume. Comparative study of 2 angiographic methods].

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.