Feasibility of left atrial strain assessment using cardiac computed tomography in patients with paroxysmal atrial fibrillation.

Autor: Hosokawa T; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan. takaaki.carlos@gmail.com., Kawakami H; Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791-0295, Japan., Tanabe Y; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Yoshida K; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Endo Y; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Tamai F; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Nishiyama H; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Fukuyama N; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan., Inoue K; Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791-0295, Japan., Yamaguchi O; Department of Cardiology, Pulmonology, Hypertension and Nephrology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791-0295, Japan., Kido T; Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, Toon City, Ehime, 791- 0295, Japan.
Jazyk: angličtina
Zdroj: The international journal of cardiovascular imaging [Int J Cardiovasc Imaging] 2024 Aug; Vol. 40 (8), pp. 1725-1734. Date of Electronic Publication: 2024 Jun 19.
DOI: 10.1007/s10554-024-03162-3
Abstrakt: Purpose: To evaluate the feasibility of left atrial strain (LAS) assessment using cardiac computed tomography (CT) in patients with paroxysmal atrial fibrillation (PAF).
Methods: This retrospective single-center study included 98 patients with PAF who underwent cardiac CT and echocardiography before the first catheter ablation. LAS was analyzed using cardiac CT (CT-LAS) and speckle-tracking echocardiography (STE; STE-LAS). LA reservoir (LASr), conduit (LASc), and pump strain (LASp) were calculated by averaging LAS measured in 4- and 2-chamber views. The results were compared using Pearson's correlation coefficients, paired t-tests, and Bland-Altman analysis. Intraclass correlation coefficients (ICCs) were used to evaluate reproducibility.
Results: CT-LAS could be analyzed in all patients, while STE-LAS could be analyzed in 53 (54%) patients. LASr, LASc, and LASp showed significant correlations between CT- and STE-LAS: LASr, r = 0.68, p < 0.001; LASc, r = 0.47, p < 0.001; LASp, r = 0.67, p < 0.001. LASr, LASc, and LASp of CT- and STE-LAS were 23.7 ± 6.0% and 22.1 ± 6.7%, 11.1 ± 3.6% and 11.1 ± 4.1%, and 12.6 ± 4.6% and 11.0 ± 4.1%, respectively. LASr and LASp were significantly higher in CT-LAS than that in STE-LAS (p = 0.023 for LASr and p = 0.001 for LASp). CT-LAS showed excellent reproducibility. The intra- and interobserver ICCs were 0.96 to 0.99 and 0.89 to 0.90, respectively.
Conclusion: CT-LAS was successfully analyzed in more patients than STE-LAS and was highly reproducible. The findings suggest that CT-LAS is feasible for patients with PAF.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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