{"675796":{"#nid":"675796","#data":{"type":"event","title":"PhD Defense by Daniel Enrique Martinez","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle:\u0026nbsp;\u003C\/strong\u003EImage Guided High Precision Robotic Positioning in MRI for Medical Applications\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate:\u0026nbsp;\u003C\/strong\u003EWednesday, August 14\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime:\u0026nbsp;\u003C\/strong\u003E10:00am-11:00am Eastern time\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation:\u0026nbsp;\u003C\/strong\u003EMRDC 4211\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EZoom link: \u003C\/strong\u003E\u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/99981472542\u0022\u003E\u003Cstrong\u003Ehttps:\/\/gatech.zoom.us\/j\/99981472542\u003C\/strong\u003E\u003C\/a\u003E\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E(Meeting ID: 999 8147 2542)\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDaniel Enrique Martinez\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003ERobotics PhD Candidate\u003C\/p\u003E\u003Cp\u003EWoodruff School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EDr. Jun Ueda (Advisor) \u2013 School of Mechanical Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. A-Ping Hu \u2013 Food Processing Technology Division, Georgia Tech Research Institute\u003C\/p\u003E\u003Cp\u003EDr. John Oshinski \u2013 Radiology and Imaging Sciences, Emory University\u003C\/p\u003E\u003Cp\u003EDr. F. Levent Degertekin \u2013 School of Mechanical Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003EDr. Yue Chen \u2013 Department of Biomedical Engineering, Georgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003EMagnetic Resonance Imaging (MRI) is a powerful diagnostic tool that offers advanced visualization of human tissue, increasingly used to guide medical procedures such as biopsies and interventions. Nevertheless, navigation in the MRI environment remains challenging due to material, actuator, and sensor restrictions as well as scan time and cost of use. This work presents methods for ensuring high precision robotic positioning in MRI for use in emerging applications through three distinct aims. In the first aim, an MRI-analogous test bench implementing Position Sensitive Devices (PSDs) is established to measure the positioning performance of a previously developed MRI compatible robot, circumventing limitations of MRI resolution and scan time, validating the capability of MRI guided robot navigation methods. In the second aim, the validated high-precision navigation method is leveraged to enable the application of multi-image Super Resolution (SR) algorithms to construct enhanced resolution in-plane MRI slices, leading to improved positioning precision exceeding the limits of the native MRI resolution. In the third aim, a data-based control methodology is developed to compensate for resistive forces when the end-effector of the robotic system is navigating through a complex fluid medium, enabling repeated high accuracy positioning of an acousto-optic sensor inside a gel phantom for measurement and evaluation of radiofrequency induced heating of conductive structures such as medical implants in MRI.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EImage Guided High Precision Robotic Positioning in MRI for Medical Applications\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Image Guided High Precision Robotic Positioning in MRI for Medical Applications"}],"uid":"27707","created_gmt":"2024-08-06 14:09:56","changed_gmt":"2024-08-06 14:10:32","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2024-08-14T10:00:04-04:00","event_time_end":"2024-08-14T11:00:04-04:00","event_time_end_last":"2024-08-14T11:00:04-04:00","gmt_time_start":"2024-08-14 14:00:04","gmt_time_end":"2024-08-14 15:00:04","gmt_time_end_last":"2024-08-14 15:00:04","rrule":null,"timezone":"America\/New_York"},"location":"MRDC 4211","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}