Comparison of non-linearity correction methods for quantitative myocardial perfusion MRI
نویسندگان
چکیده
منابع مشابه
Comparison of non-linearity correction methods for quantitative myocardial perfusion MRI
Background Quantification of physiological parameters, including myocardial blood flow (MBF), by perfusion MRI relies on analysis of data that describes temporal variation of relative contrast agent concentration following bolus administration. At doses required for sufficient SNR, signal enhancement cannot be used directly as the relationship between signal intensity (SI) and the resulting con...
متن کاملQuantitative Assessment of Myocardial Perfusion MRI
Myocardial perfusion MRI is acquired with a T1-weighted dynamic MRI sequence. Fully quantitative analysis of myocardial perfusion MRI allows the absolute quantification of myocardial blood flow (MBF) through the use of complex mathematical modeling. There are essentially two main methods for quantification of absolute MBF: the linear time-invariant model and the compartment model. Maximized con...
متن کاملCold Pressor Test in MRI for Quantitative Myocardial Perfusion Imaging
Purpose Alterations in myocardial perfusion are crucial for coronary artery disease (CAD). In nuclear medicine a risk assessment is established that can reveal endothelial dysfunction which is the first step towards CAD: the cold pressor test (CPT) [1, 2]. Nuclear medicine provides the opportunity to quantify myocardial blood flow but suffers from two main drawbacks: limited spatial resolution ...
متن کاملComparison of methods for quantitative analysis of dynamic susceptibility contrast enhanced brain perfusion MRI
Quantitative cerebral blood flow (CBF) can be obtained from dynamic susceptibility contrast (DSC) MRI using for instance the truncated singular value decomposition (tSVD). Block-circulant SVD and reformulated SVD (rSVD) are modified SVD approaches. The purpose of this study is to compare the different approaches. The optimal truncation thresholds (PSVD) for tSVD and block-circulant SVD are dete...
متن کاملRelationship between Baseline ECG Abnormalities and Quantitative Perfusion Parameters of Myocardial Perfusion Findings
Background: Coronary Artery Disease (CAD) is one of the major causes of mortality in most countries. Electrocardiography (ECG) and myocardial perfusion imaging (MPI) are non-invasive disgnostic tests for CAD. Finding a relationship between abnormal findings in the baseline ECG and MPI findings can be helpful in better diagnosis of CAD. Materials and Methods: The present study examined ECG of pa...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2015
ISSN: 1532-429X
DOI: 10.1186/1532-429x-17-s1-p45