Abstract #4839
Catheter-mounted expandable loop (CAMEL) balloon RF coil for high-resolution intracardiac MR imaging
Nelly A. Volland 1,2 , J. Rock Hadley 1,2 , Eugene G. Kholmovski 1,2 , Nassir F. Marrouche 2 , and Dennis L. Parker 1,2
1
Utah Center for Advanced Imaging Research,
University of Utah, Salt Lake City, Utah, United States,
2
Comprehensive
Arrhythmia Research & Management Center, University of
Utah, Salt Lake City, Utah, United States
Purpose: A catheter-mounted expandable loop (CAMEL)
balloon RF coil for cardiac applications was developed
and evaluated. Methods: The coil inductive flexible loop
was sandwiched between two balloons to protect the coil
from fluids. The inner balloon was inflated with saline
to expand the coil and reduce the susceptibility
mismatch between the inner balloon volume and phantom
solution. Results and conclusion: A balloon CAMEL coil
prototype was successfully constructed. MR images were
acquired at 3T in a saline phantom. The SNR with in the
coil sensitive volume was over 20 times the SNR of the
external coils currently commercially available.
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