A feasibility study for MRI guided CMUT-based intracardiac echocardiography catheters
| Autor: | S. Abdollah Mirbozorgi, Ozgur Kocaturk, Maysam Ghovanloo, F. Levent Degertekin, Amirabbas Pirouz, Robert J. Lederman, Coskun Tekes |
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| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Intracardiac echocardiography medicine.diagnostic_test Computer science business.industry Echo (computing) Ultrasound Magnetic resonance imaging 030204 cardiovascular system & hematology 01 natural sciences Signal Intracardiac injection 03 medical and health sciences Catheter 0302 clinical medicine Capacitive micromachined ultrasonic transducers Electromagnetic coil 0103 physical sciences medicine Ultrasonic sensor Ultrasound pulse Radiology business 010301 acoustics Biomedical engineering |
| Zdroj: | 2017 IEEE International Ultrasonics Symposium (IUS). |
| DOI: | 10.1109/ultsym.2017.8091893 |
| Popis: | This paper presents an catheter prototype developed for testing feasibility of intracardiac echography (ICE) in a magnetic resonance imaging (MRI) system. The presented catheter includes a capacitive micromachined ultrasonic transducer (CMUT) array at its tip, a 1m long catheter body with μ-coax cable based connections to a handle. The handle contains ultrasound pulser circuitry to generate the excitation pulse and receiver front-end to amplify the received ultrasound echo signals. The catheter tip also includes a tracking coil which is connected to the MRI system after it is routed through the handle. The catheter prototype is tested with imaging experiments under 1.5T open magnet MRI system. The visibility of the catheter under MRI is demonstrated through imaging of tracking coil signal without distorting the rest of the image. Ultrasound pulse/echo operation capability is successfully tested before and after MRI experiments indicating the feasibility of an ICE catheter that can be tracked under MRI. |
| Databáze: | OpenAIRE |
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