Results 111 to 120 of about 2,169,751 (270)

Automatic backscatter analysis of regional right ventricular systolic function using color kinesis in patients with acute anterior myocardial infarction

, 1999
Color kinesis (CK) is a recently developed echocardiographic method based on acoustic quantification (AQ) that automatically tracks and displays endocardial motion in real time.
Oztekin E., Ozcelik F., Kurum T., Ozbay G., Korucu C., Eker H.   +5 more
core  

Association Between MRI‐Derived Right‐to‐Left Ventricular Volume Ratio and Regional Left Ventricular Myocardial Dysfunction in Patients With Pulmonary Arterial Hypertension

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Right ventricular (RV) to left ventricular (LV) end‐diastolic volume ratio (RV/LV) is a validated marker of RV dilation in pulmonary arterial hypertension (PAH), yet its impact on LV myocardial function and the underlying mediating pathway is incompletely characterized.
Han Fang, Yuan Li, Jin Wang, Wei‐Feng Yan, Ke Shi, Shi‐Qin Yu, Xue Li, Wen‐Rong Li, Jia‐Ke Li, Jing‐Yi Guo, Li Jiang, Zhi‐Gang Yang   +11 more
wiley   +1 more source

Sleep‐Autonomic Interactions in Parkinson's Disease and Multiple System Atrophy: A Comparative Study Using Structural Equation Modeling

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Parkinson's disease (PD) and multiple system atrophy (MSA) are α‐synucleinopathies with overlapping autonomic and sleep dysfunction, but distinct trajectories. Objectives This study compared sleep and autonomic profiles in PD and MSA and elucidated disease‐specific associations using structural equation modeling (SEM).
Bora Jin, Yoonkyung Lee, Seungho Lee, Byeol‐A Yoon, Young Jin Jeong, Sang‐Myung Cheon   +5 more
wiley   +1 more source

Motion‐Robust Approach for 4D Cardiac Cine Using 2D Real‐Time Acquisitions and Slice‐to‐Volume Reconstruction

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose 4D cardiac cine is a powerful tool for comprehensive cardiac function assessment; however, current methods rely on regular breathing and are sensitive to bulk motion and arrhythmia. We aim to develop a 4D cardiac cine approach that requires no patient cooperation and is robust to irregular breathing, bulk motion, and cardiac arrhythmia.
Ye Tian, Anand A. Joshi, Jon A. Detterich, John C. Wood, Krishna S. Nayak   +4 more
wiley   +1 more source

Systolic anterior motion after mitral valve repair [PDF]

The Journal of Thoracic and Cardiovascular Surgery, 2014
Talay, Sureyya, ŞAHİN, AYKUT, Abud, Burcin   +2 more
openaire   +3 more sources

Towards Faster Fetal 3D CINE Cardiac MRI Reconstruction Using Region‐Optimized Virtual Coils (ROVir)

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and evaluate, in a feasibility study, a computationally efficient image‐reconstruction pipeline for 3D balanced steady state free precession (bSSFP) CINE fetal cardiac MRI that reduces radial streaking artifacts, increases effective temporal resolution, and improves diagnostic image quality compared with previous work ...
Marjolein Piek, Johannes Töger, Einar Heiberg, Katrin Fricke, Erik Hedström, Anthony H. Aletras   +5 more
wiley   +1 more source

Strain Rate Angle Distribution as an Indicator of Post‐Infarct Myocardial Remodeling: Proof‐of‐Concept of a Novel Application of the MRI Derived Strain Rate Tensor Field

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Left ventricular (LV) strain is an early indicator of myocardial dysfunction. However, conventional strain metrics do not fully account for the multidirectional nature of myocardial deformation. The strain rate tensor, derived from velocity‐encoded MRI, represents the time‐resolved magnitude and direction of strain rate without the ...
Lasse Totland, Bård A. Bendiksen, Einar S. Nordén, Ida Marie Hauge‐Iversen, Kaja Knudsen Bergo, Lili Zhang, Ivar Sjaastad, Emil K. S. Espe   +7 more
wiley   +1 more source

Systolic Anterior Motion Indicator [PDF]

, 2020
openaire   +1 more source

Whole‐Ventricle Cardiac Cine MRI in a Single Breath‐Hold With Slice‐ and Time‐Dependent Deep Image Prior at 0.55T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a whole‐ventricle cardiac cine MRI radial acquisition at 0.55T in a single breath‐hold scan of approximately 12–15 s, reconstructed using a novel self‐supervised slice and time‐dependent deep image prior (ST‐DIP) neural network.
Rafael de la Sotta, Tabita Catalán, Carlota Rivera, Francisco Sahli Costabal, Rene M. Botnar, Claudia Prieto   +5 more
wiley   +1 more source

Manejo del aparato subvalvular mitral en pacientes con miocardiopatía hipertrófica obstructiva

Cirugía Cardiovascular
Resumen: Introducción: En la miocardiopatía hipertrófica obstructiva, a la obstrucción del tracto de salida concurre, además de la hipertrofia, la insuficiencia mitral dinámica.
Valentina Mescola, Juan B. Grau-Álvaro, Virginia Álvarez-Asiáin, Luis Jiménez-Alfaro, Félix Gómez-Blasco, Javier de Diego-Candela, Facundo Machado-Fernandez, Rebeca Manrique-Antón, Gregorio Rábago-Aracil, Rafael Sádaba-Sagredo   +9 more
doaj   +1 more source