Accurate assessment of the arterial input function during high-dose myocardial perfusion cardiovascular magnetic resonance
نویسندگان
چکیده
منابع مشابه
Quantitative three-dimensional myocardial perfusion cardiovascular magnetic resonance with accurate two-dimensional arterial input function assessment
BACKGROUND Quantification of myocardial perfusion from first-pass cardiovascular magnetic resonance (CMR) images at high contrast agent (CA) dose requires separate acquisition of blood pool and myocardial tissue enhancement. In this study, a dual-sequence approach interleaving 2D imaging of the arterial input function with high-resolution 3D imaging for myocardial perfusion assessment is presen...
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Quantitative 3D Myocardial Perfusion Imaging at High Dose with Accurate Arterial Input Function Assessment Lukas Wissmann, Markus Niemann, Robert Manka, and Sebastian Kozerke Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland, Division of Imaging Sciences & Biomedical Engineering, King's...
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PURPOSE To determine how injection rate, cardiac function, and breathhold influence the arterial input function (AIF), in order to optimize the AIF in the clinical setting for quantitative myocardial perfusion cardiovascular magnetic resonance (CMR). MATERIALS AND METHODS Gd (0.1 mmol/kg) bolus was injected at 3, 5, or 7 mL/second in 35 patients. In each cardiac cycle during the first-pass, a...
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Background Modern MRI myocardial perfusion protocols use rapid venous bolus injections, typically 3-5 ml/s of 5-15 ml of agent over a few seconds. The resulting arterial input functions are rapidly varying with high agent concentrations (Fig. 1A and 1B) and thus typically require high temporal resolution acquisitions (~1 sec), custom pulse sequences and complex processing methods for perfusion ...
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It has been reported that myocardial perfusion MRI is a useful method for evaluating the severity of myocardial ischemia. We evaluated whether the severity of coronary arterial stenosis could be assessed by the signal-intensity time curve (SITC) obtained by myocardial perfusion MRI. The subjects consisted of 10 patients who showed no abnormalities on coronary angiographies (CAG) (A group), 12 w...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2004
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.20054