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Abstract #0538

Evaluation of Pediatric MRI with a High-Density Posterior Cushion Coil

Terrence Jao1, Praveen Jayapal1, Jana Vincent2, Fraser Robb2, John Pauly3, Thomas Grafendorfer 2, Yun Jeong Stickle2, Mark Giancola2, Clyve Konrad Follante2, Greig Scott3, Shreyas Vasanawala1, and Ali Syed1
1Radiology, Stanford University, Stanford, CA, United States, 2General Electric, Aurora, OH, United States, 3Electrical Engineering, Stanford University, Stanford, CA, United States

Synopsis

Keywords: Body, Pediatric, RF Coil, Flexible Coil

Motivation: Posterior coil arrays built into MRI tables are common, but provide suboptimal performance in pediatric imaging due to their distance from the imaged volume and lower coil density.

Goal(s): Improve pediatric MRI by constructing a prototype 30 channel high density posterior cushion coil (HDPCC) incorporated into a padded cushion.

Approach: 25 pediatric patients were scanned with HDPCC. 25 age-matched controls were scanned with standard coils. Two radiologists graded image quality on a 5-point scale. SNR was measured in the right paraspinal musculature and the liver.

Results: All images obtained with HDPCC were diagnostic (mean score 4.13/5). Posterior SNR was higher than standard coils.

Impact: HDPCC can improve SNR in pediatric MRI by conforming to the body and minimizing distance to the imaged volume.

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