Title
Joint CS-MRI Reconstruction and Segmentation with a Unified Deep Network.
Abstract
The need for fast acquisition and automatic analysis of MRI data is growing in the age of big data. Although compressed sensing magnetic resonance imaging (CS-MRI) has been studied to accelerate MRI by reducing k-space measurements, in current CS-MRI techniques MRI applications such as segmentation are overlooked when doing image reconstruction. In this paper, we test the utility of CS-MRI methods in automatic segmentation models and propose a unified deep neural network architecture called SegNetMRI which we apply to the combined CS-MRI reconstruction and segmentation problem. SegNetMRI is built upon a MRI reconstruction network with multiple cascaded blocks each containing an encoder-decoder unit and a data fidelity unit, and MRI segmentation networks having the same encoder-decoder structure. The two subnetworks are pre-trained and fine-tuned with shared reconstruction encoders. The outputs are merged into the final segmentation. Our experiments show that SegNetMRI can improve both the reconstruction and segmentation performance when using compressive measurements.
Year
Venue
Field
2018
arXiv: Computer Vision and Pattern Recognition
Iterative reconstruction,Fidelity,Pattern recognition,Segmentation,Computer science,Neural network architecture,Encoder,Artificial intelligence,Big data,Compressed sensing,Magnetic resonance imaging
DocType
Volume
Citations 
Journal
abs/1805.02165
1
PageRank 
References 
Authors
0.35
11
5
Name
Order
Citations
PageRank
Liyan Sun173.16
Zhiwen Fan2293.15
Yue Huang331729.82
Xinghao Ding459152.95
John Paisley5100355.70