Seminar on Lithography Based Active RF Antenna Design for iMRI Devices

12 April 2016

Bogazici-BME/Lifesci & Inovita & ISEK Joint Seminar (Ph.D. Student Presentations)

Speaker: Engin BAYSOY 

Ph.D. Student (Advisor: Assist. Prof. Ozgur Kocaturk, BU-BME)

Lecturer, Acibadem University

Date; time: April 12, 2016 (Tuesday);   13.00 – 15.00 

Place: Institute of Biomedical Engineering, AZ-19,  Boğaziçi University Kandilli Campus, Istanbul

About the Seminar:

The current treatment of congenital cardiac diseases for pediatric patients is cardiac surgery that has high mortality and morbidity rates. The interventional procedures under conventional fluoroscopy are not feasible due to the late cancer risk of the ionizing radiation. Nevertheless, unavailability of safe, conspicuous, and affordable devices remains the chief barrier to wider clinical adoption of interventional cardiovascular treatment options under magnetic resonance imaging (MRI). Therefore, we aimed to develop dedicated MRI compatible and visible intravascular “active” catheter systems that enables pediatric interventional procedures under magnetic resonance imaging and provides superior soft tissue contrast compare to other imaging modalities.  

This seminar will focus on a novel method to design and manufacture low profile “active” multi-purpose guiding catheter prototypes performed under MRI. Since active catheter receiver coils are conspicuous but their metallic transmission lines risk heating and their manufacture requires excessive device size, in our study, clinical grade biocompatible polymers and metals are utilized to fabricate clinical grade guiding catheters.  The main challenge is to maintain sufficient inner diameter while integrating RF antenna designs into non planar catheter shaft for visualization purpose. For this goal by using lithographic techniques, micro electromechanical systems (MEMs) based RF receiver antennas and safe transmission lines can be designed and embedded into polymer non planar catheter shaft to visualize the whole guiding system (both the distal tip and the whole shaft) while keeping the overall low profile and reducing heating risks under MRI. Translatable knowledge from this work will broadly impact the field of MRI compatible instruments such as guidewires, biopsy needles, atrial or ventricular septal occluders used in pediatric cardiology.

About the Speaker:

Engin BAYSOY continues to attend the PhD program of the Institute of Biomedical Engineering, Bogazici University. Simultaneously, he has been working as a lecturer at Acıbadem University. He received his M.S degree from the Department of Biomedical Engineering, Başkent University. His M.S study’s title was “Utilization of Spatial Interpolation and Statistical Estimation on Catheter Based Cardiac Mapping by using MATLAB simulations”. Before his academic studies, he was in charge of various software programs used in hospitals and was also responsible for several imaging modalities (ultrasound, computed tomography, and open MRI) while working for Toshiba Medical Systems Turkey (TMST) as a technical service engineer.