Vessel size imaging using dual contrast agent injections
نویسندگان
چکیده
منابع مشابه
Contrast enhanced vessel imaging using microCT.
Microscopic computed tomography (microCT) offers high-resolution volumetric imaging of the anatomy of living small animals. However, the contrast between different soft tissues and body fluids is inherently poor in micro-CT images (1). Under these circumstances, visualization of blood vessels becomes a nearly impossible task. To overcome this and to improve the visualization of blood vessels ex...
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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 ...
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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 ...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 2009
ISSN: 1053-1807,1522-2586
DOI: 10.1002/jmri.21960