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Diffusion MRI Stimulation theory - Admission/Application Essay Example

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The paper “Diffusion MRI Stimulation theory” will analyze the scenario in which the walk of molecules abides by the principles of the Brownian particle’s elements. The fundamental example essentially describes the phenomenon by depicting the occurrence of the process…
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Diffusion MRI Stimulation theory
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"Diffusion MRI Stimulation theory"

Download file to see previous pages According to Koh and Thoeny (2010; p. 19) diffusion-weighted imaging has been one of the most pivotal advancements with regards to the progress of neurological imaging procedures in the past 10 years. This method is employs a chronological sequence to establish the microscopic random movement of water protons (Bammer 2003) and has thus been employed in the examination of numerous diseases due the various benefits that can be obtained as a consequence of its initiation (Kono et al. 2001). Perhaps, the most valued advantage of diffusion-weighted imaging is that enables technicians to save considerable amount of time by providing a single image which is required for the purpose (Hagmann et al. 2006). The nature of the procedure permits its implementation in a host of routine procedures, for example, in the case of acute stroke the enlargement of local cell causes the hindrance of water movement to enhance as a ramification of which a vivid display may appear in the location of lesion (Hagmann et al. 2006). Fig 1. Source: Hagmann et al. ... ticles to crash into one another, once this action occurs the specific direction of the particles in modified and adopts a random path which gradually transforms into what is known as a ‘random walk’ (MRES 7007, Module 1). Moreover, in accordance with the recommendations of the Diffusion MRI Stimulation theory, the scenario in which the walk of molecules abides by the principles of the Brownian particle’s stochastic elements (Metaxas and Axel 2011). The fundamental example which defines isotropic diffusion essentially describes the phenomenon by depicting the occurrence of the process of diffusion as identical and uniform with respect to all directions (MRES 7007, Module 1). The measurement of isotropic diffusion is also known as “free” such that the ADC fundamentally represents the coefficient of a molecular diffusion that is intrinsic (Moritani, Ekholm and Westesson 2009; p. 4) . As per this case, the measurement of diffusion is conducted on the basis of the following formula: In the aforementioned formula, N reflects the dimension of molecular movement whereas; D is prescribed as the coefficient of diffusion at a certain temperature which is represented by t. Moreover, r2 defines the distance that has been covered by the molecule as a result of its movement. Peled et al. (1999) acknowledge the issue of restricted diffusion which may emerge as a result of the presence of barriers in tissues that are responsible for creating a correlation between a diffusion coefficient, the time it takes for diffusion to occur and in some cases the strength of the gradient. ...Download file to see next pagesRead More
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