Abstract #0618
Is a one size fits all many-element bore-lining remote body array feasible for routine imaging?
Daniel K. Sodickson 1,2 , Bei Zhang 3 , Qi Duan 4 , Ryan Brown 1 , Riccardo Lattanzi 1,2 , Karthik Lakshmanan 1 , Manuskha V. Vaidya 1,2 , Alicia Yang 1,2 , Robert Rehner 5 , Markus Vester 5 , Stefan Popescu 5 , Stefan Biber 5 , Bernd Stoeckel 6 , Hugo Chang 6 , and Graham C. Wiggins 1
1
Bernard and Irene Schwartz Center for
Biomedical Imaging, Department of Radiology, New York
University School of Medicine, New York, NY, United
States,
2
The
Sackler Institute of Graduate Biomedical Sciences, New
York University School of Medicine, New York, NY, United
States,
3
Translational
and Molecular Imaging Institute, Icahn School of
Medicine at Mount Sinai, New York, NY, United States,
4
Advanced
MRI Section, Laboratory of Functional and Molecular
Imaging, National Institute of Neurological Disorders
and Stroke, National Institutes of Health, Bethesda, MD,
United States,
5
Siemens Healthcare, Erlangen,
Germany,
6
Siemens
Medical Solutions, New York, NY, United States
If a many-element RF coil array could be mounted behind
the scanner covers while preserving much of the SNR
performance of close-fitting arrays, the benefits for
patient comfort and simplicity of workflow would be
dramatic. In numerical simulations and experimental
evaluations of progressively larger encircling
prototypes, we explored the feasibility of remote body
array designs. Smaller-scale models performed well as
compared with close-fitting counterparts. However, with
a 50cm-diameter 124-element prototype, we encountered
unexpected practical challenges, most notably relating
to preamplifier noise coupling, which becomes
significant in lightly-loaded many-element arrays.
Effective remote array designs will have to contend with
these challenges.
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