Richard R. Syms1, Ian R. Young2,
Munir M. Ahmad3, Marc Rea4
1EEE Dept., Imperial College London,
London, Middlesex, United Kingdom; 2EEE Dept., Imperial College
London, London, United Kingdom; 3EEE Dept., Imperial College
London, United Kingdom; 4Radiology Dept., Imperial College NHS
Trust
Procedures
such as biliary endoscopy require imaging modalities such as MRI if soft
tissue contrast is to be improved. Local signal detection is then required to
achieve adequate signal-to-noise ratio at high resolution. Small RF detector
coils have been integrated with catheter probes, but the reliable combination
of a coil, tuning and matching capacitors and an output cable is difficult in
the limited available space. Here we demonstrate a catheter-based detector
entirely formed from thin-film components, fabricated by double-sided
patterning of copper-clad polyimide to form a resonant detector with
integrated tuning and matching capacitors and a thin-film interconnect.
Keywords