Abstract
The aim of this article is to determine the association between left atrial appendage (LAA) regional dysfunction using image-based motion-estimation computed tomography (CT) (iME) and a prior history of stroke or transient ischaemic attack (TIA) in patients with atrial fibrillation (AF). In this single-centre retrospective case-control study, among patients referred for AF ablation who underwent pre-ablation cardiac CT with retrospective ECG gating, we identified 18 patients with a prior history of stroke or TIA at the time of CT scan and 18 age- and gender-matched controls. All the patients were in sinus rhythm at the time of CT scan. Four-dimensional motion vector field was estimated from the CT images using iME. To assess myocardial deformation, area change ratio (A) and area change rate (AR) were calculated over the endocardial surface of the LAA. There was no significant difference in the baseline patient characteristics between the stroke/TIA group and the control group (67.6 ± 8.1 years old, 66.7% male, 16.7% persistent AF). LAA maximum (Amax; 23.8 ± 33.0 vs. 52.9 ± 41.2%, P = 0.02) and pre-atrial contraction area change ratio (ApreA; 13.7 ± 17.7 vs. 30.9 ± 29.2%, P = 0.04) were significantly lower in the stroke/TIA grou...Continue Reading
References
Feb 1, 1996·The Annals of Thoracic Surgery·J L Blackshear, J A Odell
Jul 11, 2000·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·N OzerS Kes
Apr 30, 2002·American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation·Luis CarrerasMarta Carrera
Aug 26, 2010·European Journal of Echocardiography : the Journal of the Working Group on Echocardiography of the European Society of Cardiology·Christophe ThebaultChristophe Leclercq
Jan 13, 2012·The New England Journal of Medicine·Jeff S HealeyUNKNOWN ASSERT Investigators
Feb 22, 2012·IEEE Transactions on Bio-medical Engineering·Hiroshi Ashikaga, Jeffrey H Omens
May 5, 2012·Journal of Cardiovascular Electrophysiology·Hans Kottkamp
Jul 27, 2012·Medical Physics·Qiulin TangKatsuyuki Taguchi
Aug 4, 2012·Journal of the American College of Cardiology·Luigi Di BiaseFiorenzo Gaita
Dec 29, 2012·Cardiovascular Ultrasound·Koji OnoShinya Minatoguchi
Feb 7, 2013·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Takehiro KimuraKeiichi Fukuda
May 15, 2013·Journal of the American College of Cardiology·Marina UrenaRéda Ibrahim
May 28, 2013·IEEE Transactions on Medical Imaging·Christian B MoyerJeffrey W Holmes
Oct 1, 2013·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Irfan M KhurramHugh Calkins
Feb 6, 2014·JAMA : the Journal of the American Medical Association·Nassir F MarroucheJohannes Brachmann
Apr 1, 2014·Circulation·Craig T JanuaryUNKNOWN ACC/AHA Task Force Members
May 6, 2014·The American Journal of Cardiology·Jonathan M WongMintu P Turakhia
Jul 2, 2014·Journal of Computer Assisted Tomography·Hiroshi AshikagaKatsuyuki Taguchi
Aug 12, 2014·Journal of the American College of Cardiology·Matthew J PriceMiguel Valderrábano
Nov 17, 2014·JAMA : the Journal of the American Medical Association·Vivek Y ReddyUNKNOWN PROTECT AF Steering Committee and Investigators
Dec 19, 2014·Circulation·Dariush MozaffarianUNKNOWN American Heart Association Statistics Committee and Stroke Statistics Subcommittee
Feb 6, 2015·Circulation. Cardiovascular Imaging·Mohammadali HabibiSaman Nazarian
Feb 14, 2015·Journal of the American College of Cardiology·Tze-Fan ChaoShih-Ann Chen
Citations
Nov 4, 2016·Annals of Biomedical Engineering·Tomohiro OtaniHiroshi Ashikaga
Oct 27, 2017·European Heart Journal Cardiovascular Imaging·Thor EdvardsenBogdan A Popescu
Jun 24, 2017·Medical Physics·George S K FungKatsuyuki Taguchi
Mar 27, 2018·European Heart Journal Cardiovascular Imaging·Luisa CiuffoHiroshi Ashikaga