Convolutional neural networks (CNNs) have proven to be valuable in the fields of image processing and computer vision. Our work applies complex-valued CNNs to magnetic resonance imaging (MRI) to reduce scan times. The reduction of scan times has widespread pediatric benefits. A typical scan requires that patients remain still for up to an hour to produce a clear image, which is difficult for children without inducing anesthesia, which carries risks. A need exists for greatly improved MRI scan times without the loss of diagnostic accuracy. This scan time can be reduced by subsampling in k-space. We use CNNs to reconstruct images from these undersampled acquisitions. Our work investigates complex-valued CNNs for image reconstruction in lieu of two-channel real-valued CNNs. Read More

Meeting name: SPR 2019 Annual Meeting & Postgraduate Course , 2019

Authors: Cole Elizabeth, Pauly John, Vasanawala Shreyas, Cheng Joseph

Keywords: Magnetic Resonance Imaging, deep learning, Neural network

The purpose of this study is to develop a method of training pediatric patients in effective breathing during magnetic resonance imaging (MRI). Read More

Meeting name: IPR 2016 Conjoint Meeting & Exhibition , 2016

Authors: Alford Raphael, Jain Shreyan, Cheng Joseph, Zhang Tao, Vasanawala Shreyas

Keywords: Biofeedback, Non-sedated MRI, Respiratory Training