scholarly journals Device Sizing Guided by Echocardiography-Based Three-Dimensional Printing Is Associated with Superior Outcome after Percutaneous Left Atrial Appendage Occlusion

2019 ◽  
Vol 32 (6) ◽  
pp. 708-719.e1 ◽  
Author(s):  
Yiting Fan ◽  
Fan Yang ◽  
Gary Shing-Him Cheung ◽  
Anna Kin-Yin Chan ◽  
Dee Dee Wang ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Three Dimensional ◽  
Atrial Appendage ◽  
Three Dimensional Printing ◽  
Left Atrial Appendage Occlusion ◽  
Dimensional Printing

Left atrial appendage occlusion simulation based on three-dimensional printing: new insights into outcome and technique

2018 ◽  
Vol 14 (2) ◽  
pp. 176-184 ◽  
Author(s):  
Vlad Ciobotaru ◽  
Nicolas Combes ◽  
Claire A. Martin ◽  
Eloi Marijon ◽  
Eric Maupas ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Three Dimensional ◽  
Atrial Appendage ◽  
Three Dimensional Printing ◽  
Left Atrial Appendage Occlusion ◽  
Simulation Based ◽  
Dimensional Printing

scholarly journals Accuracy of Commonly-Used Imaging Modalities in Assessing Left Atrial Appendage for Interventional Closure: Review Article

2018 ◽  
Vol 7 (11) ◽  
pp. 441 ◽  
Author(s):  
Ramez Morcos ◽  
Haider Al Taii ◽  
Priya Bansal ◽  
Joel Casale ◽  
Rupesh Manam ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Transesophageal Echocardiography ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Imaging Modality ◽  
Three Dimensional ◽  
Atrial Appendage ◽  
Imaging Modalities ◽  
Three Dimensional Printing ◽  
Dimensional Printing

Periprocedural imaging assessment for percutaneous Left Atrial Appendage (LAA) transcatheter occlusion can be obtained by utilizing different imaging modalities including fluoroscopy, magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound imaging. Given the complex and variable morphology of the left atrial appendage, it is crucial to obtain the most accurate LAA dimensions to prevent intra-procedural device changes, recapture maneuvers, and prolonged procedure time. We therefore sought to examine the accuracy of the most commonly utilized imaging modalities in LAA occlusion. Institutional Review Board (IRB) approval was waived as we only reviewed published data. By utilizing PUBMED which is an integrated online website to list the published literature based on its relevance, we retrieved thirty-two articles on the accuracy of most commonly used imaging modalities for pre-procedural assessment of the left atrial appendage morphology, namely, two-dimensional transesophageal echocardiography, three-dimensional transesophageal echocardiography, computed tomography, and three-dimensional printing. There is strong evidence that real-time three-dimensional transesophageal echocardiography is more accurate than two-dimensional transesophageal echocardiography. Three-dimensional computed tomography has recently emerged as an imaging modality and it showed exceptional accuracy when merged with three-dimensional printing technology. However, real time three-dimensional transesophageal echocardiography may be considered the preferred imaging modality as it can provide accurate measurements without requiring radiation exposure or contrast administration. We will present the most common imaging modality used for LAA assessment and will provide an algorithmic approach including preprocedural, periprocedural, intraprocedural, and postprocedural.

scholarly journals B-PO04-146 THREE-DIMENSIONAL ULTRASOUND MAPPING FOR SAFELY PERFORMING LEFT ATRIAL APPENDAGE OCCLUSION USING INTRACARDIAC ECHOCARDIOGRAPHY

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S339
Author(s):  
Mahmoud Elsayed ◽  
Madhan Nellaiyappan ◽  
Christine Zanone ◽  
Mark Doyle ◽  
Emerson Liu ◽  
...  
Keyword(s):  
Left Atrial ◽  
Left Atrial Appendage ◽  
Three Dimensional ◽  
Intracardiac Echocardiography ◽  
Atrial Appendage ◽  
Left Atrial Appendage Occlusion

scholarly journals Pre-procedural Determination of Device Size in Left Atrial Appendage Occlusion Using Three-dimensional Cardiac Computed Tomography

2021 ◽  
Author(s):  
Iksung Cho ◽  
William D. Kim ◽  
Oh Hyun Lee ◽  
Min Jae Cha ◽  
Jiwon Seo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Left Atrial ◽  
Cardiac Ct ◽  
Left Atrial Appendage ◽  
Cardiac Computed Tomography ◽  
Three Dimensional ◽  
Atrial Appendage ◽  
Landing Zone ◽  
Left Atrial Appendage Occlusion ◽  
Device Size

Abstract Background: The two-dimensional-based LAAO size prediction system using transesophageal echocardiography is limited by the complex structure of the left atrial appendage (LAA). The LAA anatomy can be evaluated more precisely using three-dimensional images from cardiac CT; however, a CT-based sizing method has not been established. We aimed to assess the accuracy of measurements derived from cardiac computed tomography (CT) images for selecting left atrial appendage occlusion (LAAO) devices.Methods: We retrospectively reviewed 62 patients with Amplatzer Cardiac Plug and Amulet LAAO devices who underwent implantation from 2017 to 2020. The minimal, maximal, average, area-derived, and perimeter-derived diameters of the LAA landing zone were measured using CT-based images. Predicted device sizes using sizing charts were compared with actual successfully implanted device sizes.Results: The mean size of implanted devices was 27.1 ± 3.7 mm. The perimeter-derived diameter predicted device size most accurately (mean error = -0.8 ± 2.4 mm). All other parameters showed significantly larger error (mean error; minimal diameter = -4.9 ± 3.3 mm, maximal diameter = 1.0 ± 2.9 mm, average diameter = -1.6 ± 2.6 mm, area-derived diameter = -2.0 ± 2.6 mm) than the perimeter-derived diameter (all p for difference <0.05). The error for other parameters were larger in cases with more eccentrically-shaped landing zones, while the perimeter-derived diameter had minor error regardless of eccentricity. When oversizing was used, all parameters showed significant disagreement.Conclusions: The perimeter-derived diameter on cardiac CT images provided the most accurate estimation of LAAO device size regardless of landing zone eccentricity. Oversizing was unnecessary when using cardiac CT to predict an accurate LAAO size.

scholarly journals Two-dimensional versus three-dimensional transesophageal echocardiography in percutaneous left atrial appendage occlusion

2020 ◽  
Vol 26 (6) ◽  
pp. 687-695
Author(s):  
Witold Streb ◽  
Katarzyna Mitręga ◽  
Tomasz Podolecki ◽  
Magdalena Szymała ◽  
Anna Leopold-Jadczyk ◽  
...  
Keyword(s):  
Transesophageal Echocardiography ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Three Dimensional ◽  
Atrial Appendage ◽  
Two Dimensional ◽  
Left Atrial Appendage Occlusion
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