نتایج جستجو برای: stress only mpi
تعداد نتایج: 1760190 فیلتر نتایج به سال:
BACKGROUND The effect of beta blockers on myocardial blood flow (MBF) under vasodilators has been studied in several SPECT and PET myocardial perfusion imaging (MPI) studies with divergent results. The present study evaluated the effect of a beta blocker withdrawal on quantitative adenosine MBF and on MPI results. METHODS Twenty patients with beta blockers and CAD history were studied with qu...
The clinical utility of myocardial perfusion MR imaging (MPI) is often restricted by the inability of current acquisition schemes to simultaneously achieve high spatio-temporal resolution, good volume coverage, and high signal to noise ratio. Moreover, many subjects often find it difficult to hold their breath for sufficiently long durations making it difficult to obtain reliable MPI data. Acce...
BACKGROUND Cardiovascular magnetic resonance (CMR) myocardial perfusion imaging (MPI) is a state-of-the-art noninvasive modality for detection of myocardial ischemia and coronary artery disease. Magnetic resonance coronary angiography (MRCA) allows visualization of the coronary tree, but its incremental value as part of a CMR protocol including MPI and late gadolinium enhancement (LGE) is not w...
هدف: با توجه به نقش تشخیص زودرس بیماری عروق کرونر در کاهش عوارض بعدی، تست های غیر تهاجمی بویژه تست ورزش و اسکن پرفیوژن میوکارد (mpi)، نقش مهمی در این زمینه ایفا می کنند لذا هدف این مطالعه، مقایسه نتایج تشخیصی این دو روش با یکدیگر و نیز بررسی توزیع عوامل خطر کرونری در گروه های مختلف بیماران می باشد. مواد و روش ها: برای 167 بیمار مراجعه کننده به بخش پزشکی هسته ای به منظور اسکن پرفیوژن میوکارد، ا...
Introduction: One of the most important causes of death in patients with end-stage renal disease (ESRD) and even after kidney transplantation is cardiovascular diseases. Thus, cardiac evaluation is of utmost importance in the management of these patients especially during preoperative work up before renal transplantation. The aim of present study is to evaluate the role of myoc...
The Message Passing Interface (MPI) standard for programming parallel computers is widely used for building both programs and libraries. Two of the strengths of MPI are its support for libraries and the existence of multiple implementations on many platforms. These two strengths are in conflict, however, when an application wants to use libraries built with different MPI implementations. This p...
Magnetic Particle Imaging (MPI) is a promising new tracer modality with zero attenuation deep in tissue, high contrast and sensitivity, and an excellent safety profile. However, the spatial resolution of MPI is limited to around 1 mm currently and urgently needs to be improved for clinical applications such as angiography and brain perfusion. Although MPI resolution is highly dependent on trace...
OBJECTIVES The purpose of this study was to compare the efficiency, cost, and safety of a diagnostic strategy employing early coronary computed tomographic angiography (CCTA) to a strategy employing rest-stress myocardial perfusion imaging (MPI) in the evaluation of acute low-risk chest pain. BACKGROUND In the United States, >8 million patients require emergency department evaluation for acut...
Abstract Funding Acknowledgements Type of funding sources: None. Introduction Pericoronary adipose tissue, due to its proximity coronary arteries, has been proposed contribute the progression atherosclerosis. Purpose The aim this study was evaluate prognostic value pericoronary fat thickness (PCFT), artery calcium (CAC) score and myocardial perfusion reserve (MPR) by hybrid 82Rubidium (82Rb) PE...
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