A flexible 16-channel custom coil array for accelerated imaging of upper and infraglottic airway at 3 T

Wahidul Alam; Scott Reineke; Madavan Raja Viswanath; Rushdi Zahid Rusho; Douglas Van Daele; David Meyer; Junjie Liu; Sajan Goud Lingala

doi:10.1002/mrm.29559

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A flexible 16-channel custom coil array for accelerated imaging of upper and infraglottic airway at 3 T

Journal article

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Peer reviewed

A flexible 16-channel custom coil array for accelerated imaging of upper and infraglottic airway at 3 T

Wahidul Alam, Scott Reineke, Madavan Raja Viswanath, Rushdi Zahid Rusho, Douglas Van Daele, David Meyer, Junjie Liu and Sajan Goud Lingala

Magnetic resonance in medicine, Vol.89(5), pp.2117-2130

05/2023

DOI: 10.1002/mrm.29559

PMID: 36484236

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Abstract

To develop a custom coil and evaluate its utility for accelerated upper and infraglottic airway MRI at 3 T. A 16-channel flexible and anatomy-conforming coil was developed to provide localized sensitivity over upper and infraglottic airway regions of interest. Parallel-imaging capabilities were compared against existing head and head-neck coils. SENSE geometry factor losses were quantified for retrospectively accelerating 3D MRI. Blinded image-quality ratings from two experts were performed. Spiral GRAPPA reconstructions were evaluated for a speaking task at a time resolution of 40 ms. Contrast-to-noise ratios between air and tissue at key landmarks along the vocal tract were compared. SENSE imaging with the custom coil in the lateral recumbent posture was evaluated. Multislice imaging was performed to image swallowing at 17 ms/frame via constrained reconstruction. The custom coil showed improved SENSE imaging up to 3-fold acceleration when accelerated along either the anterior-posterior or the superior-inferior direction and a net 4-fold acceleration when accelerated along both directions. Spiral GRAPPA reconstructions with the custom coil showed higher contrast-to-noise ratio when compared with existing coils. In the lateral posture, robust SENSE imaging was achieved at up to 2-fold and 3-fold acceleration levels in the superior-inferior and anterior-posterior directions, respectively. Key events of swallowing in the multislice dynamic images were identified by an otolaryngologist. The coil provided improved parallel imaging of upper and infraglottic airway in both supine and lateral recumbent postures. It enabled efficient accelerated dynamic imaging of speaking and swallowing.

upper-airway

custom coil

parallel MRI

infraglottic airway

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Details

Title: Subtitle: A flexible 16-channel custom coil array for accelerated imaging of upper and infraglottic airway at 3 T
Creators: Wahidul Alam - Roy J. Carver Department of Biomedical Engineering, The University of Iowa, Iowa City, Iowa, USA
Scott Reineke
Madavan Raja Viswanath
Rushdi Zahid Rusho - Roy J. Carver Department of Biomedical Engineering, The University of Iowa, Iowa City, Iowa, USA
Douglas Van Daele - University of Iowa
David Meyer - Shenandoah University
Junjie Liu - University of Iowa
Sajan Goud Lingala - University of Iowa
Resource Type: Journal article
Publication Details: Magnetic resonance in medicine, Vol.89(5), pp.2117-2130
DOI: 10.1002/mrm.29559
PMID: 36484236
NLM abbreviation: Magn Reson Med
ISSN: 0740-3194
eISSN: 1522-2594
Publisher: Wiley
Language: English
Electronic publication date: 12/09/2022
Date published: 05/2023
Academic Unit: School of Music; Roy J. Carver Department of Biomedical Engineering; Neurology; Radiology; Radiation Oncology; Medicine Administration; Otolaryngology
Record Identifier: 9984321879102771

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