چکیده مقاله
In the last century, developments have led to a better understanding of diffusion, the perpetual mixing of molecules caused by thermal motion The basic principles governing diffusion phenomena and their measurement using magnetic resonance MR are reviewed in this article From basic principles, the apparent diffusion coefficient, diffusion propagator, and MR measurements are introduced Diffusion of water or another spin labeled molecule encounters barriers, macromolecules, and local samples As a result, In MR experiments, water motion in these microenvironments contributes to the signal It is challenging to infer features of local tissue anatomy, composition, and microstructure from MR displacement measurements in diffusion NMR and MRI It is possible to study tissue structure using MR at different length scales Ozarslan and Basser, 2008 23 , i e , levels of hierarchical architectural organization Ozarslan et al , 2006 24 The mean square displacement of water in typical MR experiments is micrometers; however, these molecular motions are ensemble averaged within voxels, after which they are assembled into multi slice or 3D images
کلیدواژهها
نویسندگان
Romina Eskandari
B Sc Graduated in Mechanical Engineering Department, Mechatronics Faculty, Islamic Azad University of Karaj, Karaj, Iran
شیوه ارجاع
Eskandari, Romina,1401,Diffusion MR introduction: A literature review,The 13th International Conference on Innovation and Research in Engineering Sciences
ارائهشده در
مجموعه مقالات سیزدهمین کنفرانس بین المللی نوآوری و تحقیق در علوم مهندسی20 آبان 1401