نتایج جستجو برای: right ventricle rv function

تعداد نتایج: 1477247  

2014
Huma Y Samar Diane V Thompson Mark Doyle Ronald B Williams June A Yamrozik Sahadev T Reddy Moneal Shah Robert W Biederman

Background Sarcoidosis is a multisystem disease. Involvement of the left ventricle (LV) in Sarcoidosis detected by CMR in the form of early (EGE) and late gadolinium enhancement (LGE) is well validated. Autopsy studies have shown abnormalities in the right ventricle (RV) as well, albeit less frequently than the LV. There have also been several case reports of sarcoidosis mimicking ARVD suggesti...

2010
Michal Šmíd Jakub Čech Richard Rokyta Patrik Roučka Tomáš Hájek

Background. Unoperated severe tricuspid regurgitation (TR) leads to the right ventricle (RV) failure. We wanted to determine if there was near-term postoperative progression of noncorrected mild to moderate functional TR in patients who underwent mitral valve surgery for chronic significant mitral regurgitation (MR) and if RV size and function were affected. Methods and Results. We compared two...

2013
Lori A Walker Peter M Buttrick

Despite ample evidence that right ventricular function is a critical determinant of the clinical response to a spectrum of cardiovascular diseases, there has been only a limited analysis of the unique and distinguishing physiologic properties of the RV under normal circumstances and in response to pathologic insults. This knowledge deficit is increasingly acknowledged. This review highlights so...

2014
Prahlad G Menon Srilakshmi M Adhypak Ronald B Williams Mark Doyle Robert WW Biederman

BACKGROUND We test the hypothesis that cardiac magnetic resonance (CMR) imaging-based indices of four-dimensional (4D) (three dimensions (3D) + time) right ventricle (RV) function have predictive values in ascertaining invasive pulmonary arterial systolic pressure (PASP) measurements from right heart catheterization (RHC) in patients with pulmonary arterial hypertension (PAH). METHODS We stud...

2015
Musa Çakıcı Adnan Doğan Mustafa Çetin Arif Süner Mustafa Polat Muhammed Oylumlu Erdal Aktürk Sabri Abus Fatih Üçkardeş

OBJECTIVE The coronary sinus (CS) has been largely ignored by physicians due to a lack of adequate data about the importance of CS enlargement in patients with heart failure (HF). We aimed to assess whether CS dilatation develops in patients with HF and to demonstrate its relation with global myocardial function of the right ventricle (RV). METHODS In this cross-sectional study, 45 healthy su...

Journal: :BMJ case reports 2014
Muhammed Oylumlu Adnan Dogan Suleyman Ercan Vedat Davutoglu

To cite: Oylumlu M, Dogan A, Ercan S, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2013-202760 DESCRIPTION A 20-year-old man with no history of known cardiac disease was admitted with dyspnoea on exertion during a few weeks. His effort capacity was class I. At physical examination, his blood pressure was 120/ 70 mmHg and pulse 80 bpm. His physical exami...

Journal: :European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2009
Smita R Jategaonkar Werner Scholtz Thomas Butz Nikola Bogunovic Lothar Faber Dieter Horstkotte

AIMS Echocardiographic speckle tracking or two-dimensional (2D) strain analysis is a new tool to assess myocardial function. This prospective controlled study evaluates systolic right ventricular (RV) function by 2D strain in adult patients with atrial septal defect (ASD) before and 3 months after percutaneous closure. METHODS AND RESULTS Assessment of global longitudinal strain (GLS), global...

Journal: :medical journal of islamic republic of iran 0
d. javidi tehran university of medical sciences, shariati hospital, cardiac surgery departmentسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) n. saffarian cardiovascular department, khatamol anbia hospital, tehran, iranسازمان اصلی تایید شده: بنیاد شهید و امور ایثارگران

abstract background: right ventricular myocardial performance index (rvmpi) is a doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. the aim of this study is to compare prognostic value of rvmpi with global rv function in patients undergoing coronary artery bypass graft (cabg). methods: in a longitudinal s...

Journal: :Medical image analysis 2015
Caroline Petitjean Maria A. Zuluaga Wenjia Bai Jean-Nicolas Dacher Damien Grosgeorge Jérôme Caudron Su Ruan Ismail Ben Ayed Manuel Jorge Cardoso Hsiang-Chou Chen Daniel Jimenez-Carretero María J. Ledesma-Carbayo Christos Davatzikos Jimit Doshi Güray Erus Oskar M. O. Maier Cyrus M. S. Nambakhsh Yangming Ou Sébastien Ourselin Chun-Wei Peng Nicholas S. Peters Terry M. Peters Martin Rajchl Daniel Rueckert Andrés Santos Wenzhe Shi Ching-Wei Wang Haiyan Wang Jing Yuan

Magnetic Resonance Imaging (MRI), a reference examination for cardiac morphology and function in humans, allows to image the cardiac right ventricle (RV) with high spatial resolution. The segmentation of the RV is a difficult task due to the variable shape of the RV and its ill-defined borders in these images. The aim of this paper is to evaluate several RV segmentation algorithms on common dat...

Journal: :Circulation research 1990
Y Goto M M LeWinter

We hypothesized that local contact forces between the pericardium and the heart cause regional variation in pericardial deformation during the cardiac cycle, reflecting volume changes of the underlying cardiac chambers. To test this, we measured regional pericardial area over the right atrium (RA) and right ventricle (RV) with orthogonal pairs of sonomicrometers in six open-chest dogs. At a lef...

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