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@ARTICLE{AvdoCelik:891835,
author = {Avdo Celik, A. and Choi, Chang-Hoon and Tellmann, Lutz and
Rick, Claire and Felder, Jorg and Shah, N. J.},
title = {{D}esign and {C}onstruction of a {PET}-{C}ompatible
{D}ouble-{T}uned 1{H}/31{P} {MR} {H}ead {C}oil},
journal = {IEEE transactions on medical imaging},
volume = {40},
number = {8},
issn = {1558-254X},
address = {New York, NY},
publisher = {IEEE},
reportid = {FZJ-2021-01758},
pages = {2015 - 2022},
year = {2021},
abstract = {Simultaneous MR-PET is an increasingly popular multimodal
imaging technique that is able to combine metabolic
information obtained from PET with anatomical/functional
information from MRI. One of the key technological
challenges of the technique is the integration of a
PET-transparent MR coil system, a solution to which is
demonstrated here for a double-tuned 1 H/ 31 P head coil at
3 T. Two single-resonant birdcage coils tuned to the 1 H and
31 P resonances were arranged in an interleaved fashion and
electrically decoupled with the use of trap circuits. All
high 511 keV quanta absorbing components were arranged
outside the PET field-of-view in order to minimize count
rate reduction. The materials inside the PET field-of-view
were carefully evaluated and chosen for minimum impact on
the PET image quality. As far as possible, the coil case was
geometrically optimized to avoid sharp transitions in
attenuation, which may potentially result in streaking
artefacts during PET image reconstruction. The coil caused a
count rate loss of just above $5\%$ when inserted into the
PET detector ring. Except for the anterior region, which was
designed to maintain free openings for increased patient
comfort, an almost uniform distribution of 511 keV
attenuation was maintained around the circumference of the
coil. MR-related performance for both nuclei was similar or
slightly better than that of a commercial double-tuned coil,
despite the MR-PET coil having a close-fitting RF screen to
shield the PET and MR electronics from possible
electromagnetic interferences.},
cin = {INM-4 / JARA-BRAIN / INM-11},
ddc = {620},
cid = {I:(DE-Juel1)INM-4-20090406 / I:(DE-Juel1)VDB1046 /
I:(DE-Juel1)INM-11-20170113},
pnm = {525 - Decoding Brain Organization and Dysfunction
(POF4-525)},
pid = {G:(DE-HGF)POF4-525},
typ = {PUB:(DE-HGF)16},
pubmed = {33798075},
UT = {WOS:000679532100006},
doi = {10.1109/TMI.2021.3070626},
url = {https://juser.fz-juelich.de/record/891835},
}