Results 71 to 80 of about 58,889 (281)

Simulation-Based Design of Bicuspidization of the Aortic Valve [PDF]

open access: yesarXiv, 2023
Objective: Severe congenital aortic valve pathology in the growing patient remains a challenging clinical scenario. Bicuspidization of the diseased aortic valve has proven to be a promising repair technique with acceptable durability. However, most understanding of the procedure is empirical and retrospective.
arxiv  

Factors influencing early and late outcome of the arterial switch operation for transposition of the great arteries [PDF]

open access: yes, 1995
Between January 1983 and January 1992, 470 patients underwent an arterial switch operation at our institution. An intact (or virtually intact) ventricular septum was present in 278 of 470 (59%); a ventricular septal defect was closed in the remaining 192.
Blackstone, Eugene H.   +6 more
core   +1 more source

A deep learning approach to using wearable seismocardiography (SCG) for diagnosing aortic valve stenosis and predicting aortic hemodynamics obtained by 4D flow MRI [PDF]

open access: yesarXiv, 2023
In this paper, we explored the use of deep learning for the prediction of aortic flow metrics obtained using 4D flow MRI using wearable seismocardiography (SCG) devices. 4D flow MRI provides a comprehensive assessment of cardiovascular hemodynamics, but it is costly and time-consuming.
arxiv  

Diffuse hypoplasia of the aortic arch and isthmus in a patient with Williams syndrome

open access: yesTürk Kardiyoloji Derneği Arşivi, 2017
Williams syndrome is a rare neurodevelopmental disorder characterized by mental retardation, growth deficiency, hypercalcemia, cardiac defects, and a distinctive facial appearance.
İsmihan Selen Onan   +4 more
doaj   +1 more source

Follow-up study of morphology and cardiac function in rats undergoing induction of supravalvular aortic stenosis [PDF]

open access: yesArquivos Brasileiros de Cardiologia, 2003
OBJECTIVE: To characterize the follow-up of an experimental model of left ventricular hypertrophy (LVH) induced by supravalvular ascending aortic stenosis in young rats.
Henrique Barbosa Ribeiro   +8 more
doaj   +3 more sources

Wall shear stress and pressure patterns in aortic stenosis patients with and without aortic dilation captured by high-performance image-based computational fluid dynamics [PDF]

open access: yesarXiv, 2022
Spatial patterns of elevated wall shear stress and pressure due to blood flow past aortic stenosis (AS) are studied using GPU-accelerated patient-specific computational fluid dynamics. Three cases of moderate AS, one with a dilated ascending aorta and two within the normal range (root diameter less than 4cm) are simulated for physiological beat cycle ...
arxiv  

Combined Supravalvular Aortic and Pulmonic Stenosis [PDF]

open access: yesCirculation, 1963
The association of supravalvular aortic stenosis and postvalvular pulmonic stenosis is described in three patients. In addition to the clinical findings resulting from obstruction to both ventricular outflow tracts, other unusual features were also present, such as a difference in the pulses and blood pressure of the upper extremities and absence of ...
L. Campeau, M. G. Bourassa
openaire   +3 more sources

Echocardiographic diagnosis of aorto-left ventricular tunnel with supravalvular pulmonic stenosis in a Shih-tzu dog

open access: yesOpen Veterinary Journal, 2023
Background: The aorto-left ventricular tunnel (ALVT) is a congenital extracardiac channel that connects the ascending aorta to the left ventricle. Case Description: A 2-year-old Shih-tzu dog presented with mild exercise intolerance.
Daji Noh   +5 more
doaj   +1 more source

Automatic Aortic Valve Pathology Detection from 3-Chamber Cine MRI with Spatio-Temporal Attention Maps [PDF]

open access: yesarXiv, 2023
The assessment of aortic valve pathology using magnetic resonance imaging (MRI) typically relies on blood velocity estimates acquired using phase contrast (PC) MRI. However, abnormalities in blood flow through the aortic valve often manifest by the dephasing of blood signal in gated balanced steady-state free precession (bSSFP) scans (Cine MRI).
arxiv  

The long-term results of using 3-patch technique for supravalvular aortic stenosis

open access: yesTạp chí Phẫu thuật Tim mạch và Lồng ngực Việt Nam
The objective of this study evaluated the results of using 3-patch technique for supravalvular aortic stenosis [1] Methods: This was a review of seri cases:  using 3-path technique for supravalvular aortic stenosis from 1/2012 to 12/2018 Results: There
Anh Tien Do, Tran Thuy Nguyen
semanticscholar   +1 more source

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