نتایج جستجو برای: 2d echocardiography

تعداد نتایج: 124282  

Journal: :Circulation 1980
N H Silverman T A Ports A R Snider N B Schiller E Carlsson D C Heilbron

velocity probe. Circulation 40: 603, 1969 15. Greenfield JC, Harley A, Thompson HK, Wallace AG: Pressure-flow studies in man during atrial fibrillation. J Clin Invest 47: 2411, 1968 16. Goldberg BB: Suprasternal ultrasonography. JAMA 215: 245, 1971 17. Bommer WJ, Miller LR, Mason DT, DeMaria AN: Enhancement of pulsed Doppler echocardiography in the evaluation of aortic valve disease by the deve...

2003
Blaithnead Murtagh George V. Letsou

The diagnosis of infective endocarditis has been notoriously difficult. Over the last decade, the modified Duke criteria have assumed an increasingly important role in the early detection of this often occult disease. Echocardiography has assumed increasing importance. Transesophageal echocardiography is recognized as more sensitive and specific than transthoracic echocardiography at detecting ...

Journal: :Kardiologia polska 2008
Lukasz Chrzanowski Piotr Lipiec Maria Krzemińska-Pakuła Paulina Wejner-Mik Aleksandra Jasińska Jarosław Drozdz Jarosław D Kasprzak

BACKGROUND Spatial orientation of left ventricular (LV) apical segments is a potential limitation to assessment by tissue Doppler echocardiography (TDE). Speckle tracking echocardiography (STE) is a recently developed quantification technique and has the advantage of being angle-independent as compared to TDE. AIM To assess matching apical segments' longitudinal strain data from TDE and STE. ...

Journal: :Journal of applied physiology 2003
George M Balanos Nicholas P Talbot Keith L Dorrington Peter A Robbins

Hypercapnia has been shown in animal experiments to induce pulmonary hypertension. This study measured the sensitivity and time course of the human pulmonary vascular response to sustained (4 h) hypercapnia and hypocapnia. Twelve volunteers undertook three protocols: 1) 4-h euoxic (end-tidal Po(2) = 100 Torr) hypercapnia (end-tidal Pco(2) was 10 Torr above normal), followed by 2 h of recovery w...

Journal: :European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2011
Dominique de Zuttere Arsène Galey Gunita Jolly Paulo Rocha

A case report where the diagnosis of pacemaker syndrome was made using simply suprahepatic vein, pulsed Doppler echocardiography. To the knowledge of the authors, this method is currently unpublished.

2007
Yat-Yin Lam

Methods A total of 43 consecutive patients (age 44 10 years) with moderate to severe PVS referred to Royal Brompton Hospital from 2002 to 2005 were retrospectively studied. Patient New York Heart Association (NYHA) functional class was recorded. The RV (lateral tricuspid annulus motion) long-axis movement was measured by M-mode and pulsed-wave (PW) tissue Doppler imaging (TDI). Restrictive RV p...

2012
Jonathan Afilalo Julia Grapsa Giuliana Durighel Declan ORegan David Dawson Robert A Levine Petros Nihoyannopoulos

Background Quantification of right ventricular (RV) volumes is challenging, particularly in patients with pulmonary arterial hypertension (PAH) who often have dilated and dysfunctional RVs. Several studies have shown that cardiac magnetic resonance (CMR) and 3-dimensional echocardiography (3DE) provide very reliable measurements of RV volumes when performed by experienced observers; however, li...

2014
lUis cABAllero pAtriZio lAncellotti

During the last few decades, the continued growth and expansion of stress echocardiography in daily clinical practice has led to the search and development of new and more quantitative technologies in an attempt to reduce the subjectivity of wall motion analysis by conventional visual method. (1) The evaluation of coronary flow reserve by Doppler echocardiography and myocardial deformation para...

2010
Fleur R. de Graaf Joanne D. Schuijf Joëlla E. van Velzen Gaetano Nucifora Lucia J. Kroft Albert de Roos Martin J. Schalij J. Wouter Jukema Ernst E. van der Wall Jeroen J. Bax

BACKGROUND Multidetector computed tomography (MDCT) has been demonstrated as a feasible imaging modality for noninvasive assessment of coronary artery disease and left ventricular (LV) function. Recently, 320-row systems have become available with 16 cm anatomical coverage allowing image acquisition of the entire heart within a single heartbeat. The purpose of this study was to evaluate the acc...

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