Stretchable self-tuning MRI receive coils based on liquid metal technology (LiquiTune).

Tytuł:: Stretchable self-tuning MRI receive coils based on liquid metal technology (LiquiTune).
Autorzy:: Motovilova E; Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA. .; Department of Radiology, Hospital for Special Surgery, New York, NY, 10021, USA. .
Tan ET; Department of Radiology, Hospital for Special Surgery, New York, NY, 10021, USA.
Taracila V; GE Healthcare, Aurora, OH, USA.
Vincent JM; GE Healthcare, Aurora, OH, USA.
Grafendorfer T; GE Healthcare, Aurora, OH, USA.
Shin J; Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA.
Potter HG; Department of Radiology, Hospital for Special Surgery, New York, NY, 10021, USA.
Robb FJL; GE Healthcare, Aurora, OH, USA.
Sneag DB; Department of Radiology, Hospital for Special Surgery, New York, NY, 10021, USA.
Winkler SA; Department of Radiology, Weill Cornell Medicine, New York, NY, 10065, USA. .
Źródło:: Scientific reports [Sci Rep] 2021 Aug 10; Vol. 11 (1), pp. 16228. Date of Electronic Publication: 2021 Aug 10.
Typ publikacji:: Journal Article; Research Support, N.I.H., Extramural
Język:: English
Imprint Name(s):: Original Publication: London : Nature Publishing Group, copyright 2011-
MeSH Terms:: Phantoms, Imaging*
Signal-To-Noise Ratio*
Knee/*diagnostic imaging
Magnetic Resonance Imaging/*instrumentation
Magnetic Resonance Imaging/*methods
Humans
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Grant Information:: R00 EB024341 United States EB NIBIB NIH HHS; R01 EB031820 United States EB NIBIB NIH HHS
Entry Date(s):: Date Created: 20210811 Date Completed: 20211108 Latest Revision: 20230113
Update Code:: 20240105
PubMed Central ID:: PMC8355233
DOI:: 10.1038/s41598-021-95335-6
PMID:: 34376703
: Czasopismo naukowe

Pełny tekst

Magnetic resonance imaging systems rely on signal detection via radiofrequency coil arrays which, ideally, need to provide both bendability and form-fitting stretchability to conform to the imaging volume. However, most commercial coils are rigid and of fixed size with a substantial mean offset distance of the coil from the anatomy, which compromises the spatial resolution and diagnostic image quality as well as patient comfort. Here, we propose a soft and stretchable receive coil concept based on liquid metal and ultra-stretchable polymer that conforms closely to a desired anatomy. Moreover, its smart geometry provides a self-tuning mechanism to maintain a stable resonance frequency over a wide range of elongation levels. Theoretical analysis and numerical simulations were experimentally confirmed and demonstrated that the proposed coil withstood the unwanted frequency detuning typically observed with other stretchable coils (0.4% for the proposed coil as compared to 4% for a comparable control coil). Moreover, the signal-to-noise ratio of the proposed coil increased by more than 60% as compared to a typical, rigid, commercial coil.
(© 2021. The Author(s).)

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