نتایج جستجو برای: myocardial perfusion image
تعداد نتایج: 567541 فیلتر نتایج به سال:
UNLABELLED The myocardial perfusion scintigraphy acquisition and analysis present some technical differences in the rare dextrocardia cases. Here we report a case of a 38 year-old woman with dextrocardia who had been applied myocardial perfusion scintigraphy. Presented case showed that the thoracic and abdominal organs had a mirror image with situs inversus totalis type dextrocardia. The incide...
Abstract Purpose First, to determine image quality using different cardiovascular magnetic resonance (CMR) perfusion protocols in patients with all available active device types a real-world setting, including non-conditional devices. Second, demonstrate feasibility of high-quality imaging spoiled gradient echo (sGE) for non-invasive stress-testing. Methods From August 2020 March 2022, N=222 ca...
The use of contrast medium in cardiac MRI allows joining the high-resolution anatomical information provided by standard magnetic resonance with functional information obtained by means of the perfusion of contrast agent in myocardial tissues. The current approach to perfusion MRI characterization is the qualitative one, based on visual inspection of images. Moving to quantitative analysis requ...
coronary heart disease (cad) is the leading cause of death specially among elderly. coronary angiography is the best diagnostic method in the patients, but is unfortunately an invasive procedure with its inherent risks. myocardial perfusion scan is a noninvasive and sensitive method for evaluation of cad and is suggested by many investigators in recent years. in this study, 64 patients who had ...
Introduction: Differentiating between ischemic cardiomyopathy (ICM) and idiopathic dilated cardiomyopathy (IDCM) is important as coronary revascularization can improve prognosis in the ischemic subgroup. Due to inherent problems of coronary angiography in patients with depressed ejection fraction (EF) introducing a noninvasive tool to diagnose those who will benefit from angiography seems...
Introduction: Asymptomatic diabetic patients are at increased risk of cardiovascular complications. Myocardial perfusion scan may be effective in risk evaluation in this population. Methods: 106 asymptomatic diabetic patients (age: min: 37, max: 82, mean: 57.73±8.88), including 56 females (52.8%) and 50 males (47.2%) were enrolled in the study. Myocardial perfusion scintigraphy was performed b...
In this paper, a method based on Active Appearance Models (AAM) is applied for automatic registration of myocardial perfusion MRI. A semi-quantitative perfusion assessment of the registered image sequences is presented. This includes the formation of perfusion maps for three parameters; maximum up-slope, peak and time-to-peak.
INTRODUCTION AND OBJECTIVES After a myocardial infarction, damage to the microcirculation indicates a worse prognosis. We compared the usefulness of the quantitative analysis of myocardial contrast echocardiography with intravenous injection of contrast (MCE-iv) with intracoronary injection (MCE-ic) for analyzing coronary perfusion. PATIENTS AND METHOD We studied 42 patients with a first ST-e...
Bilateral diffuse intense breast uptake was noted in a 40 year old female who was evaluated with Tc-99m sestamibi (MIBI) myocardial perfusion scan for possible ischemia. She was breast feeding her 1.5 year old child. The intense uptake in the breasts was superimposed on the apical and anteroapical regions of the myocardium and caused interpretation problem. We recom...
BACKGROUND Images of myocardial perfusion taken during an episode of chest pain have been used for patients in the emergency department. OBJECTIVE To evaluate the operating characteristics of 99mTc-Tetrofosmin scintigraphy during an episode of chest pain to exclude the diagnosis of acute myocardial infarction. METHODS One hundred and eight patients admitted with chest pain, or up to four ho...
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