Abstract #2327
Micro Resonant Marker for Endovascular Catheter Tracking in Interventional MRI: In Vitro Imaging at 3T
Bradford RH Thorne 1 , Prasheel Lillaney 1 , Aaron Losey 1 , Xiaoliang Zhang 1 , Yong Pang 1 , and Steven Hetts 1
1
Radiology and Biomedical Imaging, University
of California San Francisco, San Francisco, California,
United States
The purpose of this study was to design and manufacture
a miniature resonant structure for use as a bright
marker on endovascular catheters for use in
interventional magnetic resonance imaging (iMRI)
procedures. Resonant markers were positioned Parallel
with B
0
in
a water phantom and imaged using a spoiled gradient echo
sequence with a low flip angle. Prior to imaging, a
network analyzer was used to tune the markers to the
desired frequency of 127.72 MHz for operation at 3T. The
marker provides an opportunity to safely and accurately
perform MR guided procedures with smaller devices than
previously possible.
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