Vessel size imaging
نویسندگان
چکیده
منابع مشابه
Vessel size imaging.
Vessel size imaging is a new method that is based on simultaneous measurement of the changes Delta R(2) and Delta R(2)(*) in relaxation rate constants induced by the injection of an intravascular superparamagnetic contrast agent. Using the static dephasing approximation for Delta R(2)(*) estimation and the slow-diffusion approximation for Delta R(2) estimation, it is shown that the ratio Delta ...
متن کاملError propagation in Vessel Size Index Imaging
E. L. Barbier, S. Valable, C. Lucatelli, I. Troprès, C. Segebarth, C. Rémy Inserm, U594, Grenoble, F-38043, France, Univ Grenoble 1, Grenoble, F-38043, France, Inserm, IFR1, Grenoble, F-38043, France Introduction The vessel size index (VSI) provides information on the distribution of vessel radii in a voxel (1). Experimentally, it can be estimated by quantifying the changes ∆R2 and ∆R2 induced ...
متن کاملCombretastatin A-4 phosphate affects tumor vessel volume and size distribution as assessed using MRI-based vessel size imaging.
PURPOSE Combretastatin A-4 disodium phosphate (CA4P) is a promising vascular disrupting agent (VDA) in clinical trials. As CA4P acts on dividing endothelial cells, we hypothesize that CA4P affects vessels of certain sizes. The aim of this study was to evaluate the effect of CA4P by the MRI-based vessel size imaging (VSI). EXPERIMENTAL DESIGN C3H mammary carcinomas were grown to 200 mm(3) in t...
متن کاملVessel size imaging reveals pathological changes of microvessel density and size in acute ischemia.
The aim of this study was to test the feasibility of vessel size imaging with precise evaluation of apparent diffusion coefficient and cerebral blood volume and to apply this novel technique in acute stroke patients within a pilot group to observe the microvascular responses in acute ischemic tissue. Microvessel density-related quantity Q and mean vessel size index (VSI) were assessed in 9 heal...
متن کاملCombretastatin A-4 phosphate affects tumor vessel volume and size distribution as assessed using magnetic resonance imaging based vessel size imaging
Purpose: Combretastatin A-4 disodium phosphate (CA4P) is a promising vascular disrupting agent in clinical trials. As CA4P acts on dividing endothelial cells, we hypothesize that CA4P affects vessels of certain sizes. The aim of this study was to evaluate the effect of CA4P by the magnetic resonance imaging (MRI) based vessel size imaging (VSI). Experimental design: C3H mammary carcinomas were ...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2001
ISSN: 0740-3194,1522-2594
DOI: 10.1002/1522-2594(200103)45:3<397::aid-mrm1052>3.3.co;2-v