Assessment of transmural perfusion effect with Blood Oxygen Level-Dependent Cardiovascular Magnetic Resonance Imaging (BOLD-CMR)
نویسندگان
چکیده
منابع مشابه
Assessment of significant coronary artery stenosis using blood oxygen level dependent cardiovascular magnetic resonance (BOLD-CMR)
Methods Patients undergoing clinically indicated coronary angiography underwent BOLD CMR scans using a clinical 1.5T scanner. Three short axis BOLD cine images were captured at baseline and during adenosine-induced coronary hyperemia. The mean segmental percent signal intensity (SI) changes were calculated between baseline and hyperemia in the subendocardial myocardium using the 16-segment mode...
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Background Endothelial function is important in the pathogenesis of atherosclerosis. Whereas endothelial function of peripheral circulation can be assessed non-invasively with Flow-Mediated Dilatation, no method exists for coronary circulation. BOLD-CMR utilizes inherent contrast, where the signal intensity (SI) is linearly correlated with the regional tissue level of deoxygenated hemoglobin. T...
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The objective of the study was to introduce the availability of bold imaging facility at Aga Khan University Hospital Karachi for the first time in Pakistan and also to review the practical application and advantages of functional magnetic resonance imaging (fMRI) and blood oxygen level dependant (BOLD) Imaging Procedures. The study was conducted at Aga Khan University Hospital, Karachi from Au...
متن کاملMyocardial Blood-Oxygen-Level-Dependent Magnetic Resonance Imaging with Balanced Steady-State Free Precession Imaging Approaches
The current state of myocardial Blood-Oxygen-Level-Dependent (BOLD) MRI with balanced steady-state free precession (SSFP) approaches is reviewed. Initial studies forming the basis for SSFP-based detection of oxygenation changes beginning with whole blood studies, progressing through controlled studies that consider microcirculatory changes in oxygenation in skeletal muscle and kidney, culminati...
متن کاملDetection of scarred and viable myocardium using a new magnetic resonance imaging technique: blood oxygen level dependent (BOLD) MRI.
BACKGROUND The identification of viable myocardium in patients with impaired left ventricular contraction secondary to coronary heart disease is important clinically as such myocardium is likely to benefit from revascularisation. Blood oxygen level dependent (BOLD) magnetic resonance imaging (MRI) relies on changes in deoxyhaemoglobin concentration under stress for signal generation and could b...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2009
ISSN: 1532-429X
DOI: 10.1186/1532-429x-11-s1-p287