[Left ventricular segmental function in ischemic heart disease studied by ultrasonic methods].

Area of Science:

• Cardiology
• Medical Imaging
• Echocardiography

Background:

• Left ventricular segmental function is crucial for cardiac output.
• Ischemic heart disease (IHD) can impair regional myocardial contractility.
• Accurate assessment of IHD-related ventricular dysfunction is clinically important.

Purpose of the Study:

• To evaluate the application of ultrasonic sectoral scanning and B-scanning for assessing left ventricular segmental function.
• To compare ventricular function in healthy individuals and patients with IHD.
• To establish a quantitative measure for segmental pathology in IHD.

Main Methods:

• Utilized ultrasonic sectoral scanning and B-scanning techniques.
• Assessed left ventricular segmental function in normal subjects and IHD patients.
• Quantified the extent of ventricular wall motion abnormalities.

Main Results:

• In healthy individuals, apical and basal segments are key for ejection.
• In IHD patients, contractility disorders correlate with sclerotic ventricular areas.
• A significant correlation was found between the extent of ventricular affection and cardiac insufficiency symptoms.
• Affection of over 26% of the ventricular perimeter predicts cardiac insufficiency.

Conclusions:

• Ultrasonic scanning provides both qualitative and quantitative assessment of left ventricular segmental function.
• The extent of ventricular wall motion abnormality is a reliable indicator of cardiac insufficiency severity in IHD.
• This method aids in understanding and managing IHD-related cardiac dysfunction.