Results 161 to 170 of about 85,096 (348)

Evaluation of Real‐Time Cardiovascular Flow MRI Using Compressed Sensing in a Phantom and in Patients With Valvular Disease or Arrhythmia

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
Background Real‐time (RT) phase contrast (PC) flow MRI can potentially be used to measure blood flow in arrhythmic patients. Undersampled RT PC has been combined with online compressed sensing (CS) reconstruction (CS RT) enabling clinical use. However, CS RT flow has not been validated in a clinical setting.
Tania Lala   +8 more
wiley   +1 more source

Towards Patient-Specific Surgical Planning for Bicuspid Aortic Valve Repair: Fully Automated Segmentation of the Aortic Valve in 4D CT [PDF]

open access: yesarXiv
The bicuspid aortic valve (BAV) is the most prevalent congenital heart defect and may require surgery for complications such as stenosis, regurgitation, and aortopathy. BAV repair surgery is effective but challenging due to the heterogeneity of BAV morphology. Multiple imaging modalities can be employed to assist the quantitative assessment of BAVs for
arxiv  

Ventricular septal defect and aortic regurgitation [PDF]

open access: bronze, 1969
K A Hallidie-Smith   +4 more
openalex   +1 more source

A coupled mitral valve -- left ventricle model with fluid-structure interaction

open access: yes, 2017
Understanding the interaction between the valves and walls of the heart is important in assessing and subsequently treating heart dysfunction. With advancements in cardiac imaging, nonlinear mechanics and computational techniques, it is now possible to ...
Brown, André EX   +11 more
core   +3 more sources

Experimental Impact of Increasing Circuit Resistance in the Artificial Womb

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective To determine the impact of controlled incremental changes in circuit blood flow resistance to the oxygenator on hemodynamics in the fetal lamb supported by the EXTrauterine Environment for Neonatal Development (EXTEND) system.
Haiyan Cao   +7 more
wiley   +1 more source

Transcatheter closure of Ventricular Septal defects in Malta : initial experience [PDF]

open access: yes, 2005
Ventricular septal defects (VSD) consist of deficiencies of the wall separating the two ventricles. VSDs are the commonest congenital cardiac defects. Small VSDs rarely require intervention, however, larger defects cause ventricular volume overload with ...
Aquilina, Oscar   +6 more
core  

Selective Fetoscopic Laser Photocoagulation of Placental Anastomoses Leads to Early Reduction of Cardiovascular Burden in the Twin‐Twin Transfusion Syndrome

open access: yesPrenatal Diagnosis, EarlyView.
ABSTRACT Objective Cardiovascular disturbances are common in twin‐twin transfusion syndrome (TTTS). However, the rate of improvement in cardiovascular burden in response to selective fetoscopic laser photocoagulation (SFLP) is not well known. Method Fetal echocardiograms were performed prior to and 1 week following SFLP.
Kasey J. Chaszczewski   +9 more
wiley   +1 more source

Arterial distensibility as a possible compensatory mechanism in chronic aortic regurgitation

open access: yesArquivos Brasileiros de Cardiologia, 2001
OBJECTIVE: To evaluate elastic properties of conduit arteries in asymptomatic patients who have severe chronic aortic regurgitation. METHODS: Twelve healthy volunteers aged 30±1 years (control group) and 14 asymptomatic patients with severe aortic ...
Kopel Liliane   +5 more
doaj  

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