Automatic Resonance Frequency Retuning of Stretchable Liquid Metal Receive Coil for Magnetic Resonance Imaging
Stretchable magnetic resonance (MR) receive coils show shifts in their resonance frequency when stretched. An in-field receiver measures the frequency response of a stretchable coil. The receiver and coil are designed to operate at 128 MHz for a 3T MR scanner. Based on the measured frequency response, we are able to detect the changes of the resonance frequency of the coil. We show a proportional-integral-derivative controller that tracks the changes in resonance frequency and retunes the stretchable coil. The settling time of the control loop is less than 3.8ms. The retuning system reduces the loss in signal-to-noise ratio of phantom images from 1.6 dB to 0.3 dB, when the coil is stretched by 40% and the coil is retuned to 128 MHz.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2019 |
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| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:38 |
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| Enthalten in: |
IEEE transactions on medical imaging - 38(2019), 6 vom: 24. Juni, Seite 1420-1426 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Mehmann, Andreas [VerfasserIn] |
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| Links: |
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| Themen: |
9010-98-4 |
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| Anmerkungen: |
Date Completed 09.03.2020 Date Revised 09.03.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1109/TMI.2018.2888959 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM292119119 |
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| 520 | |a Stretchable magnetic resonance (MR) receive coils show shifts in their resonance frequency when stretched. An in-field receiver measures the frequency response of a stretchable coil. The receiver and coil are designed to operate at 128 MHz for a 3T MR scanner. Based on the measured frequency response, we are able to detect the changes of the resonance frequency of the coil. We show a proportional-integral-derivative controller that tracks the changes in resonance frequency and retunes the stretchable coil. The settling time of the control loop is less than 3.8ms. The retuning system reduces the loss in signal-to-noise ratio of phantom images from 1.6 dB to 0.3 dB, when the coil is stretched by 40% and the coil is retuned to 128 MHz | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Vogt, Christian |e verfasserin |4 aut | |
| 700 | 1 | |a Varga, Matija |e verfasserin |4 aut | |
| 700 | 1 | |a Port, Andreas |e verfasserin |4 aut | |
| 700 | 1 | |a Reber, Jonas |e verfasserin |4 aut | |
| 700 | 1 | |a Marjanovic, Josip |e verfasserin |4 aut | |
| 700 | 1 | |a Pruessmann, Klaas Paul |e verfasserin |4 aut | |
| 700 | 1 | |a Sporrer, Benjamin |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Qiuting |e verfasserin |4 aut | |
| 700 | 1 | |a Troster, Gerhard |e verfasserin |4 aut | |
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