Atrial Strain by Feature-Tracking Cardiac Magnetic Resonance Imaging in Takotsubo Cardiomyopathy. Features, Feasibility, and Reproducibility
- 7 October 2021
- journal article
- research article
- Published by SAGE Publications in Canadian Association of Radiologists Journal
- Vol. 73 (3), 573-580
- https://doi.org/10.1177/08465371211042497
Abstract
Objectives: The purpose of this study was to investigate whether there may be a bi-atrial dysfunction in Takotsubo syndrome (TS) during the transient course of the disease, using cardiac magnetic resonance imaging feature tracking (CMR-FT) in analyzing bi-atrial strain. Method: Eighteen TS patients and 13 healthy controls were studied. Reservoir, conduit, and booster bi-atrial functions were analyzed by CMR-FT. The correlation between LA and RA strain parameters was assessed. Intra- and inter-observer reproducibility was evaluated for all strain and strain rate (SR) parameters using intraclass correlation coefficients (ICCs) and Bland-Altman analysis. Results: Atrial strain were feasible in all patients and controls. Takotsubo patients showed an impaired LA Reservoir strain (∊s), LA Reservoir strain rate (SRs), LA and RA Conduit strain(∊e), LA and RA conduit strain rate (SRe) in comparison with controls (P < 0.001 for all of them), while no differences were found as to LA and RA booster deformation parameters (∊a and SRa). Analysis of correlation showed that LA ∊s, SRs, ∊e, and SRe were positively correlated with corresponding RA strain measurements (P < 0.001, r = 0.61 and P = 0,03, r = 0,54, respectively). Reproducibility was good to excellent for all atrial strain and strain rate parameters (ICCs ranging from 0,50 to 0,96). Conclusion: Atrial strain analysis using CMR-FT may be a useful tool to reveal new pathophysiological insights in Takotsubo cardiomyopathy. Additional studies, with a larger number of patients, are needed to confirm the possible role of these advanced CMR tools in characterizing TS patients.Keywords
This publication has 28 references indexed in Scilit:
- Increased Atrial β-Adrenergic Receptors and GRK-2 Gene Expression Can Play a Fundamental Role in Heart Failure After Repair of Congenital Heart Disease with Cardiopulmonary BypassPediatric Cardiology, 2017
- Left and right atrial feature tracking in acute myocarditis: A feasibility studyEuropean Journal of Radiology, 2017
- Transient left atrial dysfunction is a feature of Takotsubo syndromeJournal of Cardiovascular Magnetic Resonance, 2016
- Current state of knowledge on Takotsubo syndrome: a Position Statement from the Taskforce on Takotsubo Syndrome of the Heart Failure Association of the European Society of CardiologyEuropean Journal of Heart Failure, 2015
- Epidemiology and pathophysiology of Takotsubo syndromeNature Reviews Cardiology, 2015
- Systolic and Diastolic Mechanics in Stress CardiomyopathyCirculation, 2014
- Takotsubo cardiomyopathy, a two-stage recovery of left ventricular systolic and diastolic function as determined by cardiac magnetic resonance imagingEuropean Heart Journal – Cardiovascular Imaging, 2014
- Left atrial function: physiology, assessment, and clinical implicationsEuropean Heart Journal - Cardiovascular Imaging, 2011
- Inflammation in takotsubo cardiomyopathy: insights from cardiovascular magnetic resonance imagingEuropean Radiology, 2009
- -adrenoceptor density and relative number of -adrenoceptor subtypes in biopsies from human right atrial, left ventricular, and right ventricular myocardCardiovascular Research, 1985