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Wireless MRI Receive Arrays: Incorporating UWB Data Links and Vitals Sensing

Award Number: R01EB035109
ORGANIZATION: NATIONAL INSTITUTE Of BIOMEDICAL IMAGING & BIOENGINEERING
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 07/01/2024
PERIOD OF PERFORMANCE END DATE: 03/31/2028

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Wireless MRI Receive Arrays: Incorporating UWB Data Links and Vitals Sensing - Motivation: Wireless technology has largely bypassed MRI. In an era of wireless earbuds and cell phones, MRI receive arrays remain hindered by bulky cabling and the commensurate RF baluns, and coax coupling that degrade performance. The simple act of adjusting the cable routing inside the MRI bore is a commonplace nuisance and source of lost time for patient handling. The ultimate goal of this proposal is to cut the cord - to demonstrate fully functional wireless receive array technology. This capability will open new avenues for array design and applications. It will become possible to create an open interface standard that is vendor- agnostic. Through wireless operation, arrays can finally be made wearable, without fear of mechanical fragility of the connections, thereby bringing the full SNR potential of wearable arrays to fruition. Approach: To architect MRI wireless arrays, we will develop all the necessary support technology, including wireless power transfer, low-power balun-free MRI receiver electronics, wireless coil Q-spoiling, ultra-wide band microwave short-range serial links, and microwave phase and motion synchronization systems. Notably, we can achieve these goals without need of custom IC fabrication for wireless interfaces. We will also leverage the compressibility of MRI k-space data by factors of 3x or more, to stream MRI data over multiple band-limited microwave channels. Moreover, we will leverage these added microwave fields to support motion, respiratory and cardiac sensing, to effectively provide non-contact vital signs sensing as a free byproduct of the wireless approach. The wireless arrays will be constructed and compared to geometrically equivalent topologies, for image quality and safety. The net outcome will be a wireless array with data transmission recovered and streamed over gigabit ethernet links to standard network interfaces. This approach will provide excellent synergy with recent efforts to make wearable lightweight conformable MRI receive arrays. Significance: The result of this project will overcome a common irritant and inhibitor of MRI receive arrays by removing the cable interface. This will enable wearable arrays to achieve their full imaging potential, while providing an interface that is vendor neutral, safer, and cheaper.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $553,074 )
2026	2026	THE LELAND STANFORD JUNIOR UNIVERSITY	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Discovery and Applied Research for Technological Innovations to Improve Human Health	000	3	4/2/2026	NON-COMPETING CONTINUATION	$553,074
														Subtotal = $553,074

Issue Date FY: 2025 ( Subtotal = $559,154 )
2025	2025	THE LELAND STANFORD JUNIOR UNIVERSITY	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Discovery and Applied Research for Technological Innovations to Improve Human Health	001	2	6/25/2025	NON-COMPETING CONTINUATION	$55,915
2025	2025	THE LELAND STANFORD JUNIOR UNIVERSITY	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Discovery and Applied Research for Technological Innovations to Improve Human Health	000	2	3/19/2025	NON-COMPETING CONTINUATION	$503,239
														Subtotal = $559,154

Issue Date FY: 2024 ( Subtotal = $568,122 )
2024	2024	THE LELAND STANFORD JUNIOR UNIVERSITY	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Discovery and Applied Research for Technological Innovations to Improve Human Health	000	1	6/14/2024	NEW	$568,122
														Subtotal = $568,122

Grand Total All Awards = $1,680,350

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Wireless MRI Receive Arrays: Incorporating UWB Data Links and Vitals Sensing

Award Number: R01EB035109

ORGANIZATION: NATIONAL INSTITUTE Of BIOMEDICAL IMAGING & BIOENGINEERING

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 07/01/2024

PERIOD OF PERFORMANCE END DATE: 03/31/2028

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