نتایج جستجو برای: myocardial mechanical parameters

تعداد نتایج: 944133  

Journal: :Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit 2011
M Yuce F Yavuz M Cakici I Sari V Davutoglu

The incidence of systemic embolization with mechanical valves is 1% per year [1]. Most cases present as cerebrovascular events. As the incidence of mechanical valve surgery has increased in recent years, systemic thromboembolism has become an important problem. Although coronary embolism due to mechanical valve thrombosis is encountered rarely, it is an important and serious complication. We re...

Journal: :NMR in biomedicine 2009
Gustav J Strijkers Annemiek Bouts W Matthijs Blankesteijn Tim H J M Peeters Anna Vilanova Mischa C van Prooijen Honorius M H F Sanders Edwin Heijman Klaas Nicolay

The cardiac muscle architecture lies at the basis of the mechanical and electrical properties of the heart, and dynamic alterations in fiber structure are known to be of prime importance in healing and remodeling after myocardial infarction. In this study, left ventricular remodeling was characterized using diffusion tensor imaging (DTI) in a mouse model of myocardial infarction. Myocardial inf...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1392

in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...

Journal: :Heart 2002
P Andrássy M Zielinska R Busch A Schömig C Firschke

BACKGROUND Myocardial capillary perfusion is a prerequisite of myocellular viability after reperfusion of acute myocardial infarction. It was hypothesised that the magnitude of myocardial capillary perfusion, assessed by transmural signal intensity in venous contrast echocardiography as a corollary of the blood volume of myocardial capillaries, and the amount of viable myocardium, represented b...

ژورنال: مواد پرانرژی 2019

The mechanical properties of the final energetic composite depend mainly on the HTPB prepolymer microstructure; thus, the prepolymer microstructure of HTPB is one of the important factors influencing the mechanical properties of high-energy composite based on HTPB resin. In this paper, the effect of microstructure parameters of HTPB on the behavior and mechanical properties of its high-energy c...

2002
P Andrássy M Zielinska

Background: Myocardial capillary perfusion is a prerequisite of myocellular viability after reperfusion of acute myocardial infarction. It was hypothesised that the magnitude of myocardial capillary perfusion, assessed by transmural signal intensity in venous contrast echocardiography as a corollary of the blood volume of myocardial capillaries, and the amount of viable myocardium, represented ...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2006
Francesc Carreras Manel Ballester Sandra Pujadas Ruben Leta Guillem Pons-Llado

The non-invasive study of cardiac mechanics has been improved after the recent introduction of advanced magnetic resonance and echocardiographic imaging techniques. Tagged and diffusion-sensitive cardiac magnetic resonance allows the study of myocardial torsion dynamics as well as the anatomical disposition of myocardial fibers. Local myocardial strain and synchronicity of myocardial contractio...

Journal: :European heart journal 2009
Jens-Uwe Voigt

During the past years, cardiac resynchronization therapy (CRT) has become a recognized treatment option for patients with heart failure and conduction delays. In the meantime, the principle of re-synchronizing a dyssynchronous ventricle can be regarded as established. The challenge of correctly identifying the patient candidates who will benefit from this costly and not completely noninvasive t...

Journal: :iranian journal of nuclear medicine 2013
ramin sadeghi vahid reza dabbagh kakhki seyed rasoul zakavi mahdi reza emadzadeh maryam torabian-kakhki

introduction: we aimed to investigate the effect of right bundle branch block (rbbb) on perfusion and functional parameters in dipyridamole stress/rest tc99m-mibi gated myocardial perfusion spect (gspect) which may be helpful in interpretation of myocardial perfusion imaging. methods: we studied 73 patients with low pre-test likelihood of coronary artery disease in two groups:  38 patients with...

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