作者
Julio Garcia, Hana Sheitt, Michael S Bristow, Carmen Lydell, Andrew G Howarth, Bobak Heydari, Frank S Prato, Maria Drangova, Rebecca E Thornhill, Pablo Nery, Stephen B Wilton, Allan Skanes, James A White
发表日期
2020/3
期刊
Journal of Magnetic Resonance Imaging
卷号
51
期号
3
页码范围
871-884
出版商
John Wiley & Sons, Inc.
简介
Background
Characterization of left atrial (LA) hemodynamics in paroxysmal atrial fibrillation (PAF) may provide valuable insights for thromboembolic risk.
Purpose
To evaluate LA vortex formation and velocity distributions by 4D flow MRI and identify associations with age, LA/LV (left ventricle) function, and established risk scores.
Study Type
Prospective clinical.
Population
Patients with PAF (n = 45, 46 ± 14 years) and healthy controls (n = 15, 54 ± 9 years) were enrolled.
MRI Sequences
3T standardized cardiac MRI protocol inclusive of 4D flow MRI.
Assessment
Flow analysis planes were prescribed at each pulmonary vein. Velocity distribution analysis and vortex size quantification by the Lambda2 (λ2) method were performed in the LA.
Statistics
Pearson or Spearman's correlation coefficients, r, were calculated to identify relationships between 4D flowderived LA parameters and age, LA/LV function …
学术搜索中的文章
J Garcia, H Sheitt, MS Bristow, C Lydell, AG Howarth… - Journal of Magnetic Resonance Imaging, 2020