The preliminary value of vector flow mapping on assessment of left intraventricular pressure difference in patients with paroxysmal atrial fibrillation.
10.7507/1001-5515.202011004
- Author:
Mei LIU
1
;
Yuyan CAI
1
;
He HUANG
1
;
Yue ZHONG
1
;
Fang WANG
1
Author Information
1. Department of Cardiology, West China Hospital, Sichuan University, Chengdu 610041, P.R.China.
- Publication Type:Journal Article
- Keywords:
intraventricular pressure difference;
paroxysmal atrial fibrillation;
relative pressure imaging;
vector flow mapping
- MeSH:
Atrial Fibrillation/diagnostic imaging*;
Diastole;
Heart Ventricles;
Humans;
Ventricular Function, Left;
Ventricular Pressure
- From:
Journal of Biomedical Engineering
2021;38(2):310-316
- CountryChina
- Language:Chinese
-
Abstract:
This study aims to explore the intraventricular pressure difference (IVPD) within left ventricle in patients with paroxysmal atrial fibrillation (PAF) by using the relative pressure imaging (RPI) of vector flow mapping (VFM). Twenty patients with paroxysmal atrial fibrillation (PAF) and thirty control subjects were enrolled in the study. Systolic and diastolic IVPD derived from VFM within left ventricle and conventional echocardiographic parameters were analyzed. It was found that the B-A IVPD of left ventricle in PAF patients showed the same pattern as controls-single peak and single valley during systole and double peaks and double valleys during diastole. Basal IVPD was the main component of base to apex IVPD (B-A IVPD). The isovolumetric systolic IVPD was associated with early systolic IVPD, early systolic IVPD was associated with late systolic IVPD, and late systolic IVPD was associated with isovolumic diastolic IVPD (all
