{"617673":{"#nid":"617673","#data":{"type":"event","title":"PhD Proposal by Timothy Sowers","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETimothy Sowers\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EBioE Ph.D. Proposal Presentation\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E1:00 PM, Wednesday, February 27, 2019\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EMRDC 3515\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAdvisor: \u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Stanislav Emelianov (Georgia Institute of Technology, Emory University)\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee Members:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Brooks Lindsey (Georgia Institute of Technology, Emory University)\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. David Ku (Georgia Institute of Technology)\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Muralidhar Padala (Emory University, Georgia Institute of Technology)\u003C\/p\u003E\r\n\r\n\u003Cp\u003EDr. Levent Degertekin (Georgia Institute of Technology)\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EDiagnosis and Characterization of Atherosclerotic Plaques with Photoacoustic Imaging\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ECardiovascular disease is the primary cause of death worldwide.\u0026nbsp; Coronary artery disease, a subset of cardiovascular disease, caused an estimated 7.4 million deaths in 2015.\u0026nbsp; Physicians\u0026#39; inability to accurately locate plaques is a current impediment to diagnosis and treatment.\u0026nbsp; Photoacoustics is being developed to address this deficiency.\u0026nbsp; Photoacoustic imaging is a technique in which nanosecond laser pulses are used to locally heat tissue, producing a thermal expansion and resultant ultrasonic wave that can be measured with an ultrasound transducer. \u0026nbsp;The intensity of the ultrasonic signal is proportional to the tissue\u0026rsquo;s optical absorption coefficient, which will vary by tissue type and light wavelength.\u0026nbsp; Thus, the distinct optical spectra of lipid make it an identifiable marker of atherosclerotic plaques.\u0026nbsp; The work that will be proposed for this dissertation consists of advancing photoacoustic imaging of atherosclerotic plaques with three specific aims.\u0026nbsp; First, Monte Carlo simulations will be conducted to determine the optimal geometry for imaging using an ultrasound array and external light delivery.\u0026nbsp; Second, the safety of intravascular photoacoustic imaging, a catheter-based technique, will be assessed to determine if light absorption is likely to cause tissue damage.\u0026nbsp; Third, nanoscale contrast agents that enhance photoacoustic identification of lipid plaque will be tested.\u0026nbsp;\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Diagnosis and Characterization of Atherosclerotic Plaques with Photoacoustic Imaging"}],"uid":"27707","created_gmt":"2019-02-12 16:26:20","changed_gmt":"2019-02-12 16:26:20","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-02-27T13:00:00-05:00","event_time_end":"2019-02-27T15:00:00-05:00","event_time_end_last":"2019-02-27T15:00:00-05:00","gmt_time_start":"2019-02-27 18:00:00","gmt_time_end":"2019-02-27 20:00:00","gmt_time_end_last":"2019-02-27 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}