An Optoelectrical, Standard CMOS-based Active Catheter Tracking System for MRI

A fully optical active catheter tracking system compatible with 3T M RI environment is presented. It replaces conducting cables with optical fibers to reduce RF-induced heating problem. Proposed system consists of a M EM S-based microstructure array and an IC driving it. The IC houses an RF receiver...

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Bibliographic Details
Main Authors: Camli, Berk, Sarioglu, Baykal, Yalcinkaya, Arda D.
Format: Conference Proceeding
Language:English
Subjects:
CMOS phot odiode
elect romagnet ic act uat ion
MRI
opt ical MEMS
opt ical powering
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Description
Summary:A fully optical active catheter tracking system compatible with 3T M RI environment is presented. It replaces conducting cables with optical fibers to reduce RF-induced heating problem. Proposed system consists of a M EM S-based microstructure array and an IC driving it. The IC houses an RF receiver block and an optoelectrical power supply. A prototype IC was fabricated in UM C 0.18μm CM OS process. M easurements indicate that the supply unit is able to provide 2.18mA at 1.2V supply, when a laser beam of 80mW power at its source is applied to IC. The system is operational at laser source power levels above 40mW.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2014.11.725