Search Results for author: Krishna S. Nayak

Found 3 papers, 0 papers with code

Attention-gated convolutional neural networks for off-resonance correction of spiral real-time MRI

no code implementations14 Feb 2021 Yongwan Lim, Shrikanth S. Narayanan, Krishna S. Nayak

Spiral acquisitions are preferred in real-time MRI because of their efficiency, which has made it possible to capture vocal tract dynamics during natural speech.

Robust Autocalibrated Structured Low-Rank EPI Ghost Correction

no code implementations30 Jul 2019 Rodrigo A. Lobos, W. Scott Hoge, Ahsan Javed, Congyu Liao, Kawin Setsompop, Krishna S. Nayak, Justin P. Haldar

First, it does not completely trust the information from autocalibration data, and instead considers the autocalibration and EPI data simultaneously when estimating low-rank matrix structure.

Accuracy, Uncertainty, and Adaptability of Automatic Myocardial ASL Segmentation using Deep CNN

no code implementations10 Dec 2018 Hung P. Do, Yi Guo, Andrew J. Yoon, Krishna S. Nayak

PURPOSE: To apply deep CNN to the segmentation task in myocardial arterial spin labeled (ASL) perfusion imaging and to develop methods that measure uncertainty and that adapt the CNN model to a specific false positive vs. false negative tradeoff.

Segmentation

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