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Abstract #0307

A System for Attenuating and Monitoring Acoustic Noise during Infant MRI Studies

Michael Valente 1,2 , Lei Zhou 3 , Longchuan Li 1,2 , Sarah Shultz 1,2 , and Xiaoping Hu 3

1 Pediatrics, Emory University, Atlanta, GA, United States, 2 Marcus Autism Center, Children's Healthcare of Atlanta, Atlanta, GA, United States, 3 Biomedical Engineering, Emory University, Atlanta, GA, United States

We developed a noise attenuation system for infant MRI studies that consists of an acoustic hood inserted into the MRI bore and a pair of headphones with embedded microphones for real-time monitoring of in-ear noise levels. This system is capable of attenuating overall noise levels below 70dB during structural, diffusion and functional scans and can quickly detect elevated noise exposure caused by improper headphone placement. This system meets NICU standards for newborn noise exposure and will greatly improve the success rate of imaging naturally sleeping infants.

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