Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"GD-DTPA"”.
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Determination of Permeability-Surface Area Products of Gd-DTPA
Made available in DSpace on 2017-07-06T18:42:19Z (GMT). No. of bitstreams: 3 Aref_Michael_MS.pdf: 58694735 bytes, checksum: 7b0bb548ccf3a4e45e62ada79ee2f697 (MD5) Aref_Michael_MS_ABS.pdf: 1521834 bytes, checksum: 9a7804fb65d1ffcb0ef87637bd728ea8 (MD5) license.txt: 4813 bytes, checksum: …
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Measurement of physiological variables by dynamic Gd-DTPA enhanced MRI
… through quantitative analysis of dynamic Gd-DTPA enhanced MRI (DEMRI) acquired using standard imaging hardware within a clinical setting. A method for quantitative analysis of DEMRI (QDEMRI) was developed and implemented on a standard personal computer platform using a set of programs …
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Quantification of blood Gd-DTPA levels : implications on dosing dGEMRIC
… are injected 0.2mmol of an MRI contrast agent (Gd-DTPA 2, Berlex Imaging, Wayne, NJ) per kilogram of body weight. Because the distribution volume of Gd-DTPA - is affected by body composition, subjects with high Body Mass Index (BMI) may effectively be dosed higher compared to low BMI subjects. …
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Vergleichende Studie der beiden Kontrastmittel Gd-DTPA-BMA und PEG-Ferron zur Perfusionsmessung am Rattenhirn in der MR-Bildgebung
… befindlichen paramagnetischen MR-Kontrastmittel Gd-DTPA-BMA und dem neu entwickelten superparamagnetischen MR-Kontrastmittel PEG-Ferron der Firma Nycomed durchgeführt. Diese erfolgten an einem 2 Tesla Ganzkörpertomographen. <br>Zum Einsatz kam eine stark T2*-gewichtete …
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Studies of GD-DTPA relaxivity and proton exchange rates in tissue with implications for MR imaging of regional myocardial perfusion
Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1993.
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Determination of permeability-surface area products of GD-DTPA and PAMAM-TU-DTPA G = 4 magnetic resonance imaging contrast agents in mammary tumors
Open Restriction set for Item 97290 on 2016-12-14T22:51:35Z with date null by astein@illinois.edu.
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EPR of powders, crystals, and clays of MRI contrast agents: zero field splitting and proton relaxation
… and without contrast. Since the first use of Gd III CA’s in imaging in the early 1980’s, the chemistry and physics of these CA’s have been studied extensively. These agents increase the longitudinal proton relaxivity of protons in waters hydrogen-bound to the Gd III and indirectly affect …
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Synthesis, Characterization, and Evaluation of Silica-Nanosphere-Based Contrast Agents for Biomedical Application
… the silica nanospheres for dual functionality. Gd-DTPA, a commonly used MRI contrast agent, was chosen as an appropriate candidate for initial study. Through an in vivo experiment using tadpoles, we demonstrated and evaluated dual functionality of Gd-DTPA loaded silica spheres for MRI, …
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Lanthanide Functionalised gold nanoparticles as MRI contrast agents
… MRI contrast agents. In the first instance, the DTPA (diethylenetriaminepentaacetic acid) based ligand was designed, synthesized and characterised. This ligand was utilised for stabilisation of gold nanoparticles. The gold nanoparticles protected by DTPA based ligand were characterised using …
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Synthesis and characterization of cationic contrast agents & imaging of articular cartilage using X-ray computed tomography and magnetic resonance
… (CT) imaging; and Gadopentetate-dilysine (Gd(DTPA)Lys2), a gadolinium small molecule for Magnetic Resonance (MR) imaging. These cationic contrast agents are attracted to the strong negative fixed charge of extracellular GAG and, therefore, infiltrate cartilage. This work begins with an …
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Identifying Tumor Vascular Permeability Heterogeneity Using Reduced Encoding Techniques
… T1-weighted gradient echo DCE MRI following a Gd-DTPA injection, there is a window of resolutions that detects similar PS ""hot spots"" compared to those obtained from the clinical imager resolution. The top five PS ""hot spots"" obtained from 469 mum resolution FFT are statistically different …
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Magnetic resonance characterization of gadolinium-based contrast agents
… agents in NMR Imaging in this thesis. Many Gd-based contrast agents were studied including Gd DTPA(dimethylenetriaminepentaacetic acid). The zero field splitting energies and g values of Gd complexes were obtained in frozen solutions by the EPR technique. Solvent structures of Gd-based …
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Spatially-localized correlation of MRI and mechanical stiffness to assess cartilage integrity in the human tibial plateau
… equilibration with the ionic contrast agent Gd(DTPA)2-. With dGEMRIC, TlGd serves as an index of GAG content: we therefore examined whether cartilage stiffness could be related to dGEMRIC-measured TlGd in samples of human tibial plateaus.
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The characterization of a mouse model of transient stroke using ex vivo MR microscopy and in vivo MR imaging
… contrast agents. Two common MR contrast agents, Gd-DTPA and MnCl2 were used in this thesis. The ability of MR contrast agents to increase SNR and enhance image contrast was first tested in a relatively simple in vitro glioma spheroid (diameter ' 400 um) system.
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Modélisation pharmacocinétique combinée IRM-TEP
… diéthylène-triamine penta-acétique (Gd-DTPA) en IRM et le radiotraceur [indice supérieur 18] F-fluorodésoxyglucose (FDG) en TEP ont été utilisés. Un modèle mathématique a été développé pour effectuer la conversion et comparer les AIFs. Afin d'évaluer l'efficacité de la méthode, les …
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Using Multimodal MRI Techniques to Understand the Role of Hippocampus in Schizophrenia
… vascular-space occupancy (VASO) technique using Gd-DTPA as contrast agent acquired CBV maps with resolution of 0.78mm x 0.78 mm x 4 mm, and found increased CA3+CA1+Sub relative CBV value normalized by thalamus CBV in SZ group compared to NC group, which suggests a basal hypermetabolic state in …
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Anatomische und funktionelle Magnetresonanztomographie der menschlichen Lunge
… intravenösen Kontrastmittels wie Gadolinium (Gd)-DTPA, vorgestellt. Aus einer nicht-schichtselektiven (globalen) T1-Map und einer schichtselektiven T1-Map derselben Lungenschicht, die jeweils mit der oben genannten schnellen quantitativen Lungen-T1-Mapping-Technik akquiriert wurde, wurde eine …