227 Result(s)
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Chapter
Quantification of Left Ventricular Function by Two-Dimensional Echocardiography
Two-dimensional echocardiography has overcome some of the major methodological limitations of M-mode echocardiography [1]. In addition the introduction of apical echocardiography by Silverman and Schiller [2] ...
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Chapter
Improved tolerance of intracoronary balloon inflation with a modified Grüntzig balloon angioplasty catheter
A modified Grüntzig coronary angioplasty catheter, designed to permit continuous antegrade perfusion during dilatation was evaluated. During in-vitro tests with blood, flow rates between 12 and 28ml/min were m...
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Chapter
Autopsy findings in 14 patients with myocardial infarction treated with thrombolysis or combined thrombolysis and PTCA
From March 1 (1983) to June 15 (1984) 127 patients with evolving myocardial infarction (MI) entered a randomized clinical trial at the II. Medizinische Klinik, Johannes Gutenberg-Universität, Mainz.
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Acute changes of myocardial function by PTCA. Evaluation by two-dimensional echocardiography
Two-dimensional echocardiography allows a detailed analysis of global and regional left ventricular function [1]. The aim of our study was to analyse continuously the left ventricular function during percutane...
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Article
Color superposition: a new modality for contrast echocardiography
To improve the estimation of endocardial borders in echocardiography, a technique has been developed to combine images from contrasted and noncontrasted echocardiograms of the same heart-phase using a color su...
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Evaluation of the Effect of Thrombolytic Therapy on Left and Right Ventricular Function by Two-Dimensional Echocardiography and Cineventriculography
Infarct size is the main predictor of prognosis in patients with acute myocardial infarction [1–3]. Depending on infarct size, regional and global left ventricular functions are depressed, leading to cardiogen...
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Article
Congenital mitral regurgitation caused by a perforation in the anterior leaflet: Perioperative evaluation by color-coded Doppler echocardiography
Color-coded two-dimensional (2D) echocardiography confirmed the presence of severe congenital mitral regurgitation in an 8-month-old infant. Intraoperative inspection revealed an isolated perforation in the an...
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Patient documentation for the ultrasound laboratory
The development of a PC based system for the storage of patient data in the echocardiography laboratory is described. Special design objectives were low cost and user friendliness, including an integrated spec...
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Chapter
Percutaneous Transluminal Coronary Rotary Ablation with Rotablator: European Experience
Over the past decade, it has been recognized that percutaneous transluminal coronary angioplasty [1] is a very effective method of myocardial revascularization. Nevertheless, in spite of real advances in techn...
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Article
Spontaneous echo contrast imaging in infective endocarditis: a predictor of complications?
Infective endocarditis is associated with significant morbidity and mortality. Valvular destruction and congestive heart failure are more common in patients with echocardiographically detectable vegetations. I...
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Article
Current Status of Phosphodiesterase Inhibitors in the Treatment of Congestive Heart Failure
The phosphodiesterase inhibitors have been recognised as potent inotropic and vasodilating drugs. In acute congestive heart failure they increase cardiac output, decrease left pulmonary capillary wedge pressur...
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Role of transesophageal echocardiography in pulmonary embolism
According to the textbooks of Braunwald and Harrison [1,2] and others [3] even transthoracic echocardiography seems to play no role in decision making in patients with suspected pulmonary embolism. Other autho...
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Chapter
Differentiation of Coronary Syndromes with Intracoronary Ultrasound
Angiography is regarded as the golden standard in order to evaluate morphology and function of coronary arteries. Comparison between angiography and postmortem studies, however, revealed significant discrepanc...
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Chapter
Left ventricular contrast echocardiography — echoventriculography
Echographic contrast agents were first used for structure identification [1, 2]. Pooled data analysis revealed a high safety [3]. Special agents have been developed in order to standardize right heart opacific...
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Article
Assessment of pulmonary embolism
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Article
Contrast echocardiography of the left ventricle an independent predictor of pulmonary artery pressure?
To test the hypothesis that left heart opacification is dependent on pulmonary artery pressure, we analyzed consecutively 12 patients with normal and 8 patients with abnormal pulmonary artery pressure with a n...
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Article
Intravascular ultrasound
ICUS is a new technique and technique development has overcome already some o f the potential limitations of the technique. Further miniaturization with production of imaging guidewires and micrometers as well...
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Article
Improvement of coronary morphology and blood flow after stenting
Intravascular ultrasound (IVUS) and intracoronary Doppler (ICD) were performed in eight patients (54.3±6.5 years, 6 male) immediately after PTCA and after stenting. ICD was also performed before PTCA. After PT...
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Article
Improving the applicability of myocardial densitometry and parametric imaging by extended automated densogram analysis
In clinical applications the analysis of X-ray contrast densograms acquired in regions of interest (ROI's) over the myocardium is disturbed by many complex factors. For this reason we acquire redundant densogr...
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Chapter
Immediate evaluation of percutaneous transluminal coronary balloon angioplasty success by intracoronary Doppler ultrasound
Percutaneous transluminal coronary angioplasty has achieved a dominant role for the treatment of patients with coronary artery disease. In several European countries and the US the number of angioplasty proced...
