{"id":{"repo_id":"houston","oai_identifier":"oai:uh-ir.tdl.org:10657/1052"},"canonical_url":"https://search.dev.ndltd.org/etd/houston/oai:uh-ir.tdl.org:10657/1052","repository":{"repo_id":"houston","name":"University of Houston","base_url":"https://uh-ir.tdl.org/server/oai/request"},"display":{"title":"Measurements of MRI Induced Heating","abstract":"The appeal of magnetic resonance imaging (MRI) stems from the fact that it can generate internal images of the human body noninvasively, with high temporal and contrast resolution, and without requiring ionizing radiation. Instead, MRI requires the use of a relatively safe radio frequency (RF) signal, which can however be problematic for patients with implantable medical devices. The RF induced heating on twenty-four titanium rods with different diameters, coatings, and lengths, were placed, within a phantom of gelled saline, inside a 1.5 T, 64 MHz test system for 15 minutes, one-by-one. Thermal simulations were carried out in SEMCAD X. The partially insulated rods experienced the highest increase in temperature out of all the coating configurations. Also, the titanium rods that were closer to the length of a half-wavelength dipole antenna in general experienced a higher increase in temperature. Finally, the thinner rods experienced a higher increase in temperature than the thicker rods.","abstract_html":"The appeal of magnetic resonance imaging (MRI) stems from the fact that it can generate internal images of the human body noninvasively, with high temporal and contrast resolution, and without requiring ionizing radiation. Instead, MRI requires the use of a relatively safe radio frequency (RF) signal, which can however be problematic for patients with implantable medical devices. The RF induced heating on twenty-four titanium rods with different diameters, coatings, and lengths, were placed, within a phantom of gelled saline, inside a 1.5 T, 64 MHz test system for 15 minutes, one-by-one. Thermal simulations were carried out in SEMCAD X. The partially insulated rods experienced the highest increase in temperature out of all the coating configurations. Also, the titanium rods that were closer to the length of a half-wavelength dipole antenna in general experienced a higher increase in temperature. Finally, the thinner rods experienced a higher increase in temperature than the thicker rods.","abstract_has_math":false,"creators":["Pena, Miguel A. 1987-"],"institution":"University of Houston","degree_name":"Master of Science in Electrical Engineering","degree_level":"Masters","degree_discipline":"Electrical Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Chen, Ji"],"committee_chairs":[],"committee_members":["Jackson, David R.","Zouridakis, George"],"year":2013,"date_issued":"2013-08","date_published":"2013-08","updated_at":"2026-07-24T02:32:34Z","subjects":["RF-induced heating","Titanium","MRI","MRI induced heating"],"languages":["eng"],"rights":["The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s)."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10657/1052","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Chen, Ji"]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Jackson, David R.","Zouridakis, George"]},{"key":"dc:creator","label":"Author","values":["Pena, Miguel A. 1987-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2015-08-25T00:20:51Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2015-08-25T00:20:51Z"]},{"key":"dc:date.issued","label":"Date","values":["2013-08"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Electrical Engineering"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Houston"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["RF-induced heating","Titanium","MRI","MRI induced heating"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s)."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10657/1052"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The appeal of magnetic resonance imaging (MRI) stems from the fact that it can generate internal images of the human body noninvasively, with high temporal and contrast resolution, and without requiring ionizing radiation. Instead, MRI requires the use of a relatively safe radio frequency (RF) signal, which can however be problematic for patients with implantable medical devices. The RF induced heating on twenty-four titanium rods with different diameters, coatings, and lengths, were placed, within a phantom of gelled saline, inside a 1.5 T, 64 MHz test system for 15 minutes, one-by-one. Thermal simulations were carried out in SEMCAD X. The partially insulated rods experienced the highest increase in temperature out of all the coating configurations. Also, the titanium rods that were closer to the length of a half-wavelength dipole antenna in general experienced a higher increase in temperature. Finally, the thinner rods experienced a higher increase in temperature than the thicker rods."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Measurements of MRI Induced Heating"]}]}],"canonical_facts":{"dc:contributor.advisor":["Chen, Ji"],"dc:contributor.committeemember":["Jackson, David R.","Zouridakis, George"],"dc:creator":["Pena, Miguel A. 1987-"],"dc:date.accessioned":["2015-08-25T00:20:51Z"],"dc:date.available":["2015-08-25T00:20:51Z"],"dc:date.issued":["2013-08"],"dc:description.abstract":["The appeal of magnetic resonance imaging (MRI) stems from the fact that it can generate internal images of the human body noninvasively, with high temporal and contrast resolution, and without requiring ionizing radiation. Instead, MRI requires the use of a relatively safe radio frequency (RF) signal, which can however be problematic for patients with implantable medical devices. The RF induced heating on twenty-four titanium rods with different diameters, coatings, and lengths, were placed, within a phantom of gelled saline, inside a 1.5 T, 64 MHz test system for 15 minutes, one-by-one. Thermal simulations were carried out in SEMCAD X. The partially insulated rods experienced the highest increase in temperature out of all the coating configurations. Also, the titanium rods that were closer to the length of a half-wavelength dipole antenna in general experienced a higher increase in temperature. Finally, the thinner rods experienced a higher increase in temperature than the thicker rods."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10657/1052"],"dc:language.iso":["eng"],"dc:rights":["The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. 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