scholarly journals Intracardiac ultrasound two-dimensional and with three-dimensional reconstruction for navigating percutaneous left atrial appendage occlusion

2021 ◽  
Author(s):  
Witold Streb ◽  
Katarzyna Mitręga ◽  
Tomasz Podolecki ◽  
Stanisław Morawski ◽  
Wiktoria Kowalska ◽  
...  
2020 ◽  
Vol 16 (1) ◽  
pp. 155014771989595
Author(s):  
Huang Hao Lei ◽  
Li Hua Kang ◽  
Song Zhi Yuan ◽  
Wan Chen ◽  
Yao Qing

Objective: The objective was to evaluate the application of transesophageal echocardiography, left atrial appendage angiography, cardiac computed tomography angiography, and three-dimensional reconstruction model in the left atrial appendage occlusion. Methods: A total of 53 patients with persistent atrial fibrillation hospitalized from January 2015 to February 2019 were selected. Transesophageal echocardiography and cardiac computed tomography angiography were performed simultaneously before operation, and three-dimensional reconstruction of the left atrial appendage model was performed based on the cardiac computed tomography angiography findings. The morphology and size of the left atrial appendage were displayed by the left atrial appendage angiography during the operation. Results: Cardiac computed tomography angiography revealed filling defects in the left atrial appendage in four patients, whereas transesophageal echocardiography revealed thrombosis in two patients of the four patients. According to the cardiac computed tomography angiography results, the morphology of the left atrial appendage was classified into chicken wing–like, cauliflower-like, wind vane–like, and cactus-like. The diameters and depths of the left atrial appendage measured by cardiac computed tomography angiography and three-dimensional reconstruction model were found to be the greatest, and the orifice sizes and depths of the left atrial appendage measured by the left atrial appendage angiography were the smallest. Conclusion: Transesophageal echocardiography, left atrial appendage angiography, cardiac computed tomography angiography, and three-dimensional reconstruction model can evaluate the morphology and size of the left atrial appendage. The cardiac computed tomography angiography and three-dimensional reconstruction model could demonstrate the internal structure of the left atrial appendage more clearly.


2020 ◽  
Vol 26 (6) ◽  
pp. 687-695
Author(s):  
Witold Streb ◽  
Katarzyna Mitręga ◽  
Tomasz Podolecki ◽  
Magdalena Szymała ◽  
Anna Leopold-Jadczyk ◽  
...  

2018 ◽  
Vol 14 (2) ◽  
pp. 176-184 ◽  
Author(s):  
Vlad Ciobotaru ◽  
Nicolas Combes ◽  
Claire A. Martin ◽  
Eloi Marijon ◽  
Eric Maupas ◽  
...  

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S339
Author(s):  
Mahmoud Elsayed ◽  
Madhan Nellaiyappan ◽  
Christine Zanone ◽  
Mark Doyle ◽  
Emerson Liu ◽  
...  

2021 ◽  
Author(s):  
Iksung Cho ◽  
William D. Kim ◽  
Oh Hyun Lee ◽  
Min Jae Cha ◽  
Jiwon Seo ◽  
...  

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.


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