Associations between 3D-based Left Atrial Volumetric and Blood Flow Parameters in a Single-Site Cohort of the Multi-Ethnic Study of Atherosclerosis.
4D Flow MRI
Atherosclerosis
Left Atrial Blood Flow
Left Atrial Volume
Journal
Radiology. Cardiothoracic imaging
ISSN: 2638-6135
Titre abrégé: Radiol Cardiothorac Imaging
Pays: United States
ID NLM: 101748663
Informations de publication
Date de publication:
Apr 2024
Apr 2024
Historique:
medline:
7
3
2024
pubmed:
7
3
2024
entrez:
7
3
2024
Statut:
ppublish
Résumé
Purpose To investigate associations between left atrial volume (LAV) and function with impaired three-dimensional hemodynamics from four-dimensional flow MRI. Materials and Methods A subcohort of participants from the Multi-Ethnic Study of Atherosclerosis from Northwestern University underwent prospective 1.5-T cardiac MRI including whole-heart four-dimensional flow and short-axis cine imaging between 2019 and 2020. Four-dimensional flow MRI analysis included manual three-dimensional segmentations of the LA and LA appendage (LAA), which were used to quantify LA and LAA peak velocity and blood stasis (% voxels < 0.1 m/sec). Short-axis cine data were used to delineate LA contours on all cardiac time points, and the resulting three-dimensional-based LAVs were extracted for calculation of LA emptying fractions (LAEF
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM