Towards Ultra-Low RF Power Simultaneous Transmit and Receive (STAR) MRI with a Wearable RF Transceiver Head Coil

被引：0

作者：

Colwell, Zachary A. ^{[1
]}

Kandala, Sri Kirthi ^{[1
]}

DelaBarre, Lance ^{[2
]}

Idiyatullin, Djaudat ^{[2
]}

Adriany, Gregor ^{[2
]}

Garwood, Michael ^{[2
]}

Vaughan, John Thomas ^{[3
]}

Sohn, Sung-Min ^{[1
]}

机构：

[1] Arizona State Univ, BioInspired Circuits & Syst Lab, Tempe, AZ 85287 USA

[2] Univ Minnesota, Ctr Magnet Resonance Res, Minneapolis, MN USA

[3] Columbia Univ, Zuckerman Inst, New York, NY USA

来源：

2024 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, IMS 2024 | 2024年

关键词：

Magnetic Resonance Imaging; biomedical electronics; self-interference cancellation; RESONANCE; TEMPERATURE;

D O I：

10.1109/IMS40175.2024.10600294

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Simultaneous transmit and receive (STAR) is an emerging MRI technology that enables the continuous SWIFT pulse sequence to be used for imaging short T2 tissues. By joining this technology with wearable RF coils, a wide range of pediatric patients could be accommodated for while using low RF power. First, a standalone STAR system was built to isolate two transceiver coils. Then, the system was interfaced with a wireless user-board for fine-tuning the output isolation state after STAR had automatically calibrated a high isolation state. The coils consisted of liquid eutectic Gallium Indium in plastic tubes on a fabric sleeve, thus they could be stretched and bent. A pineapple was imaged in a 1.5T MRI scanner using only 1 mW of RF peak power. The image shows the ability of wearable coils to conform to an arbitrary shape, thus allowing the B1 field to penetrate deeply into a subject.

引用

页码：1008 / 1011

页数：4

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