Effect of $$ T_{2}^{*} $$ correction on contrast kinetic model analysis using a reference tissue arterial input function at 7 T
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چکیده
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Tumor Arterial Input Function (AIF) estimation in DCE-MRI studies using a multiple reference tissue method
C. Yang, W. M. Stadler, M. Medved, G. S. Karczmar University of Chicago, Chicago, IL, United States Introduction: Accurate estimation of the arterial input function (AIF) is essential for quantitative analysis of DCE-MRI data. We have previously demonstrated that a common AIF can be estimated from the contrast agent concentration versus time curves (Ct(t)) in two reference tissues with differen...
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An improved reference tissue approach for measuring the arterial input function in DCEMRI; comparison of late-phase reference tissue and plasma contrast media concentrations
Introduction: Analysis of dynamic contrast enhanced MRI (DCEMRI) data requires knowledge of the arterial input function (AIF), which accounts for variations in contrast media injection, cardiac output, and vascular function. The AIF can be determined from a major artery, a pre-defined ‘population’ function, or a reference tissue. However, the direct measurements from artery are subject to signi...
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PURPOSE To develop a postprocessing method to correct saturation of arterial input function (AIF) in T1-weighted dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for quantification of hepatic perfusion. MATERIALS AND METHODS The saturated AIF is corrected by parameterizing the first pass of the AIF as a smooth function with a single peak and minimizing a least-squares error in f...
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ژورنال
عنوان ژورنال: Magnetic Resonance Materials in Physics, Biology and Medicine
سال: 2015
ISSN: 0968-5243,1352-8661
DOI: 10.1007/s10334-015-0496-1