نتایج جستجو برای: myocardial wall motion
تعداد نتایج: 520508 فیلتر نتایج به سال:
Chronotropic incompetence and a higher frequency of myocardial ischemia in exercise echocardiography
BACKGROUND Exercise echocardiography (EE) is an established method to diagnose coronary artery disease (CAD). Chronotropic incompetence (CI) during the EE may be a marker of myocardial ischemia. The purpose of this investigation was to evaluate the additive value of CI during EE in CAD diagnosis. METHODS Between 2000 and 2006, 4042 patients (1900 men with a mean age of 56 +/- 11 years) were e...
Objective To investigate the effects of puerarin (Pur) on myocardial perfusion and ventricular wall motion in patients with acute coronary syndrome (ACS). Methods Thirty-seven patients with ACS were randomly divided into two groups: conventional treatment group (n=17, 11 males, range of age: 32-80 years, average age: 60.9±4.9 years) and Pur treatment group (n=20,12 males, range of age: 40-76 ye...
AIMS The study was set up to evaluate the functional role of post-infarct preserved microvascular integrity. Low dose dobutamine echocardiography and myocardial contrast echocardiography were used to study patients before hospital discharge who had suffered a recent myocardial infarction and had a patent infarct-related artery (TIMI flow grade 3). METHOD In the dysfunctioning infarct area, th...
Prone 201Tl myocardial perfusion SPECT has been shown to improve left ventricular inferior wall counts compared to supine imaging, thus minimizing diaphragmatic attenuation. Prone SPECT quantitative normal limits were developed and prospectively applied to 36 patients who had coronary angiography. The prone imaging table used had a cut-out under cardiac area which increased the average myocardi...
Methods 36 children (5.8 ± 2.4 yrs) with HLHS after completion of Fontan-circulation were investigated. 17 patients (pts) had mitral and aortic atresia (MA/AA) without a visible left ventricular cavity. In 19 pts representing the anatomical subgroups mitral stenosis/aortic atresia (MS/AA) and mitral stenosis/aortic stenosis (MS/AS) a left ventricular cavity was present. We used CMR cine-imaging...
BACKGROUND Patients with systemic ventricles of right ventricular morphology are at high risk of contractile dysfunction, the cause of which has not been fully elucidated. OBJECTIVE To assess whether ischaemia or infarction contributes to ventricular impairment in unoperated patients with uncomplicated congenitally corrected transposition of the great arteries (TGA) by studying myocardial per...
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