[Cardiac MRI for determining functional left ventricular parameters]

Area of Science:

• Cardiovascular imaging
• Medical physics
• Diagnostic radiology

Context:

• Assessing left ventricular (LV) function is crucial for diagnosing and managing cardiovascular diseases.
• Aortic valvular disease significantly impacts LV hemodynamics and structure.
• Magnetic resonance imaging (MRI) offers non-invasive assessment capabilities.

Purpose:

• To evaluate the accuracy of MRI in determining LV functional parameters and anatomy.
• To compare the precision of flow quantification versus volumetric cine imaging for cardiac output assessment.
• To establish the reliability of MRI in differentiating healthy individuals from patients with aortic valvular disease.

Summary:

• MRI accurately determined LV functional parameters and anatomy in healthy volunteers and patients with aortic valvular disease.
• Flow quantification demonstrated superior correlation with invasive measurements for cardiac output compared to volumetric cine calculations.
• Inter- and intraobserver variability were acceptably low for both MRI techniques.

Impact:

• MRI is a reliable tool for assessing LV function and anatomy in aortic valvular disease.
• Flow quantification techniques via MRI are recommended for clinical use due to higher accuracy.
• This study supports the clinical utility of advanced MRI techniques in cardiovascular diagnostics.