Low latency iterative reconstruction of first pass stress cardiac perfusion with physiological stress using graphical processing unit
نویسندگان
چکیده
منابع مشابه
Low latency iterative reconstruction of first pass stress cardiac perfusion with physiological stress using graphical processing unit
Background Cardiac MR perfusion has been shown to provide high diagnostic accuracy in detection of the coronary artery disease [1]. We have recently installed an MR-compatible supine bicycle mounted on the scanner table, which allows performing CMR perfusion immediately after physiologic stress. However, patients are unable to sustain a breathold after physical exercise, limiting the choice of ...
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Background MR stress perfusion is a non-invasive, reliable and safe test for ischemic heart disease [1]. Recent publications reported sensitivity and specificity of 89% and 80% respectively [2]. Image quality improvements seem to be essential for improving the predictive value of the method. This leads to the dilemma of finding a compromise between high spatial resolution and sufficient SNR. La...
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Background Stress perfusion (SP) abnormalities predict prognosis in specific subsets of patients with coronary artery disease (CAD). However, results are more controversial in populations with stable CAD. We tried to assess prognostic value of SP cardiac magnetic resonance (CMR) in unselected patients with chronic CAD, beyond conventional risk factors such as left ventricle ejection fraction (L...
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The mathematical modeling of the acoustic wave propagation in seawater is the basis for realizing goals such as, underwater communication, seabed mapping, advanced fishing, oil and gas exploration, marine meteorology, positioning and explore the unknown targets within the water. However, due to the existence of various physical phenomena in the water environment and the various conditions gover...
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First-pass contrast-enhanced (CE) myocardial perfusion imaging will experience T(2) (*) effects at peak concentrations of contrast agent. A reduction in the signal intensity of left ventricular (LV) blood due to T(2) (*) losses may effect estimates of the arterial input function (AIF) used for quantitative perfusion measurement. Imaging artifacts may also result from T(2) (*) losses as well as ...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2013
ISSN: 1532-429X
DOI: 10.1186/1532-429x-15-s1-e10