2026-09-19T10:22:28Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/24477 2023-07-10 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Georgiadis, John G. Gharibans, Armen A. 2011-05-25T14:23:20Z 2013-05-26T10:00:19Z 2011-05-25T14:23:20Z 2011-05 This thesis aims to investigate the use of magnetic resonance diffusion tensor imaging (DTI) as a non-invasive tool to study the structure and organization of human skeletal muscle. By analyzing the diffusion of water molecules, DTI can uniquely probe the microstructure of skeletal muscle providing valuable information that other imaging tools cannot. The first aim is exploring the feasibility of using DTI and tractography to accurately represent muscle structure in the presence of imaging noise. Noise produces a random perturbation of the diffusion tensor, which can shift the eigenvectors and produce incorrect results. Various tractography algorithms are compared to determine which is the least susceptible to noise and the minimum signal-to- noise ratio for reliable results is established. The second aim is to use the tractography results to elucidate and quantify a 3D fabric structure to ultimately determine muscle quality objectively. Tracking of the secondary eigenvector, novel to the DTI field, is introduced and investigated. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-04-29T13:17:31Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Gharibans_Armen.pdf: 9843124 bytes, checksum: 8c661618f5a22d464d1e6006da6f1492 (MD5) Made available in DSpace on 2011-05-25T14:23:20Z (GMT). No. of bitstreams: 2 Gharibans_Armen.pdf: 9843124 bytes, checksum: 8c661618f5a22d464d1e6006da6f1492 (MD5) license.txt: 4065 bytes, checksum: d372ddc5ff79b18f699d9d57d7bab257 (MD5) Item marked as restricted to the 'Administrator' Group (id=1) by William Ingram (wingram2@illinois.edu) on 2011-05-25T14:29:54Z Item is restricted until 2013-05-25T14:29:35Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2013-05-26T10:00:18Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Mechanical Science and Engineering (ID: 675) No. of bitstreams: 3 Gharibans_Armen.pdf.txt: 69804 bytes, checksum: 3962c8b1777786249e491b1d01d9ade2 (MD5) Gharibans_Armen.pdf: 9843124 bytes, checksum: 8c661618f5a22d464d1e6006da6f1492 (MD5) license.txt: 4065 bytes, checksum: d372ddc5ff79b18f699d9d57d7bab257 (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2013-05-26T10:00:19Z http://hdl.handle.net/2142/24477 en Copyright 2011 Armen Alex Gharibans Magnetic Resonance Imaging Diffusion Tensor Imaging Tractography Skeletal Muscle Diffusion Tensor Imaging and Quantitative Tractography of Skeletal Muscle for Microstructural Tissue Characterization Mechanical Sci & Engineering 1917 Mechanical Engineering 0133 University of Illinois at Urbana-Champaign Thesis M.S. MS:Mechanical Engineerng -UIUC 10KS0133MS