PPT-Diffusion MRI - Lesson 3

DWIDTI QC Martin Styner UNC Thanks to Guido Gerig NYU And many many folks Content Todays topic Diffusion MRI QC Still underappreciated Artifact correction with FSL Motion amp eddy current. 1. Diffusion Ordered Spectroscopy. Provides a way to separate different compounds in a mixture based on the differing translational diffusion coefficients (differences in the size and shape of a molecule). Diffusion plus Convection. ).  . Molecular Diffusion in Gases. Equimolar. . Counterdiffusion. A. B. B. A.  .  . In terms of mole fraction, . Molecular Diffusion in Gases. Uni. -component Diffusion. in SPH and grid codes. James . Wadsley. (McMaster). Tom Quinn (Washington), Fabio . Governato. (Washington), Hugh . Couchman. (McMaster). Disks 2012, Heidelberg. Test. Agertz. et al 2007. Code comparison paper from the proto . DIFFUSION: DEFINITIONS. Diffusion is a process of . mass transport. that involves the atomic . or molecular motion. .. In the simplest form, the diffusion can be defined as the . random walk. of an ensemble of particles from regions of high concentration to regions of lower concentration. & . Osmosis. Why are diffusion and osmosis important?. Diffusion and osmosis are important because they provide . evidence. for the existence and movement of particles, that is, they provide . evidence. The Cell in its Environment. Ch 7, Section 2. L3 Biology. Molecules are always moving. Molecules move randomly and bump into each other and other barriers. Diffusion. Movement of molecules from an area of high concentration to an area of lower concentration . CHAPTER 2/ O’LEVEL BIOLOGY 5090 / GCE.. 2. Diffusion and osmosis. Content. 2.1 Diffusion. 2.2 Osmosis. 2.3 Active . transport. Learning outcomes. Candidates should be able to:. (a) define diffusion as the movement of molecules from a region of their higher concentration to a region of. Overview. Theory. Basic . physics. Tensor. Diffusion . imaging . Practice. How . do you do DTI?. . Tractography. . DTI . in . FSL and other programs. Diffusion . Tensor Imaging. Brownian motion. Gary Hui Zhang, PhD. Microstructure Imaging Group. Centre for Medical Image Computing. Department of Computer Science. University College London. 26th of June, 2013. UCL Centre for Medical Image Computing. (M. 3. D). Dr. Brian H. Spitzberg. Principle Investigator: Dr. Ming-Hsiang . Tsou . mtsou@mail.sdsu.edu. ,. . (Geography), . Co-. Pis. : . Dr. . Dipak. K Gupta (Political Science), Dr. Jean Marc Gawron (Linguistic), Dr. Brian . WHAT IS CULTURE??. 2. 3. Culture. All-encompassing term that identifies not only the whole tangible lifestyle of peoples, but also their prevailing values and beliefs. Cultural trait. – a defining characteristic that is shared by most, . Granulométrie laser. LA . DIFFUSION DE LA LUMIERE. Antoine . Aubret. – Mickael Gipon . Licence professionnelle . Polymer. Engineering – 2015-2016. 2. Mise en garde. Cette présentation a été réalisée dans le cadre de notre formation en licence professionnelle plasturgie ; elle résulte de la synthèse des sources (Cf. fin de présentation) que nous avons pu trouver, et nous ne pouvons en aucun cas être tenu responsable des éventuelles erreurs techniques.. Magnetic Field. While MRI is considered to be a safe imaging technique, it is not without hazards. The magnet field will attract many ferromagnetic metals in an uncontrolled fashion and cause them to fly towards the magnets bore and turning them into high velocity projectiles. The bore of the magnet is where the fringe field is strongest, as all the lines of force are constricted and their relative strengths heightened. Various objects can be considered projectiles. A noninvasive procedure to evaluate different types of tissue, including . the spinal cord. intervertebral disks . spaces between the vertebrae through which the nerves travel . distinguish healthy tissue from diseased tissue..