Reference Ranges for Cardiac Magnetic Resonance-Derived Atrioventricular Plane Displacement in Healthy Han Chinese...

Area of Science:

• Cardiovascular imaging
• Cardiac mechanics
• Ventricular function assessment

Background:

• Atrioventricular plane displacement (AVPD) and cardiac valve plane displacement (CVPD) are key to longitudinal ventricular function.
• These parameters vary with age, but reference values for Han Chinese adults are lacking.

Purpose of the Study:

• To establish reference ranges for AVPD in healthy Han Chinese adults.
• Utilize cardiac magnetic resonance (MR) imaging for precise measurements.

Main Methods:

• Prospective, single-center study involving 200 healthy Han Chinese adults.
• 3.0 Tesla MR imaging with steady-state free precession (SSFP) sequence.
• Quantification of left ventricle (LVAVPD) and right ventricle (RVAVPD) using long-axis cine images.

Main Results:

• Mean LVAVPDavg was 14.0±1.5 mm and RVAVPDavg was 18.7±2.3 mm.
• No significant sex differences were found, but significant age-related variations were observed.
• Age, end-diastolic volume (EDV), and end-diastolic volume index (EDVi) were significant determinants of AVPD.

Conclusions:

• Presents normative LVAVPD and RVAVPD ranges for healthy Han Chinese adults.
• Demonstrates age-related changes and correlations with EDV, stroke volume (SV), and ejection fraction (EF).
• Supports the clinical utility of AVPD in myocardial function assessment.