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Seminars

  • Speaker: Dr Adrienne Campbell-Washburn

  • Title: MRI methods for improved visualization and reduced heating of off-the-shelf nitinol devices during MRI-guided cardiovascular interventions.

  • Date: Monday, 19 May 2014

  • Time: 1-2 pm

  • Venue: Roberts Room 106, Roberts Building, UCL, Torrington Place, London WC1E 7JE

ABSTRACT:

Minimally invasive X-Ray guided interventional procedures have reduced the need for open-chest surgery. Moving to MRI guidance during cardiovascular interventions is appealing to reduce ionizing radiation exposure in children with heart disease and to enable new minimally invasive procedures. MRI-guidance is technically demanding, requiring high frame-rate real-time interactive imaging and MRI-guided interventions have been on the cusp of clinical translation for over a decade. In this talk, I will provide an overview of ongoing efforts to bring MRI guided interventions to clinical practice. I will focus on my work developing MRI methods for improved visualization of standard commercially available devices. These MRI methods use simultaneously generated positive contrast device images and anatomical images to produce a color overlay of the device onto the anatomy for procedural guidance. In addition, I will talk about reduced device heating using spiral MRI for procedural guidance with real-time distortion corrections from the gradient system impulse response function. An MRI platform permitting the safe and effective use of off-the-shelf devices for MR-guided interventions has the potential to expedite clinical translation.

BRIEF BIOGRAPHY:

Dr. Campbell-Washburn completed her PhD in 2012 from the UCL Medical Physics and Bioengineering Department/Center for Advanced Biomedical Imaging. During her time at UCL she developed cardiovascular MRI methods for studying experimental models of disease. She was awarded the 2011 SCMR Early Career Award (translational category) for her work in measuring extracellular volume in amyloidosis, and was one of the finalists for the 2013 ISMRM I.I. Rabi Young Investigator Award (Basic Science) for her work measuring myocardial perfusion. Adrienne Campbell-Washburn is now a postdoctoral fellow at the National Institutes of Health in the USA. Her research interests include passive device visualization and low SAR methods for MRI-guidance of interventional cardiovascular procedures.

About the Medical Physics Lunchtime Seminar:

The Medical Physics Lunchtime Seminar is normally held on the last Monday of every month (except Bank holidays) between 1 and 2 pm. The seminar series is open to all and features
principal investigators in and collaborators with the Department of Medical Physics and Bioengineering at UCL and UCLH. Staff and students within the department are strongly encouraged to attend to find out more about the various exciting activities going on in the department. The seminar series aims to introduce the career path of the speakers, cultivate a stronger identity within the department, share current research fields with the wider UCL community, and to inspire the next generation of scientists and students.

Enquiries: Dr Ilias Tachtsidis (<span class="underline">i.tachtsidis@ucl.ac.uk</span><span class="underline"> </span>)

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