Imaging-based method to quantify left ventricular diastolic pressures.

ABSTRACT:

Aims

To establish an imaging-based method to quantify left ventricular (LV) diastolic pressures.

Methods and results

In 115 patients suspected of coronary artery disease, LV pressure was measured by micromanometers and images by echocardiography. LV filling pressure was measured as LV pre-atrial contraction pressure (pre-A PLV). Based on previous observations, we hypothesized that pre-A PLV approximates the sum of minimum PLV and maximum transmitral pressure difference. Parameters used for pressure estimates included LV volumes and strain, left atrial strain, mitral flow velocities, systolic arterial cuff pressure, and body mass index. Minimum PLV was estimated by predictors identified in a derivative cohort (n = 81). Mitral pressure difference was calculated by a simplified

SUBMITTER: Smiseth OA 

PROVIDER: S-EPMC12206579 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature