Abstract
An intraluminal magnetic resonance imaging (MRI) probe holds promise to achieve a higher resolution image of a small pathological lesion than conventional external probes. Such an intraluminal probe requires precise resonant frequency tuning to 63.865 MHz and impedance matching to 50 Ω, if used for instance in a 1.5-T scanner. Tuning and matching have to be performed after inserted into the subject body as electric permittivity varies according to the tissue location. Thus, in this study, a novel intraluminal MRI probe, which can be tuned and matched remotely by voltage-controlled, MOSFET-type variable capacitors was developed and fabricated. The imaging capability and signal-to-noise ratio (SNR) was evaluated in an agar phantom.
Original language | English |
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Pages (from-to) | 29-38 |
Number of pages | 10 |
Journal | Electronics and Communications in Japan |
Volume | 100 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2017 Mar 1 |
Keywords
- MRI, nonplaner photofabrication
- intraluminal MRI probe
- minimally invasive therapy
- receive coil
- variable capacitor
ASJC Scopus subject areas
- Signal Processing
- Physics and Astronomy(all)
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Applied Mathematics