Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fast T2w/FLAIR MRI Acquisition by Optimal Sampling of Information
  Complementary to Pre-acquired T1w MRI   Recent studies on T1-assisted MRI reconstruction for under-sampled images of
other modalities have demonstrated the potential of further accelerating MRI
acquisition of other modalities. Most of the state-of-the-art approaches have
achieved improvement through the development of network architectures for fixed
under-sampling patterns, without fully exploiting the complementary information
between modalities. Although existing under-sampling pattern learning
algorithms can be simply modified to allow the fully-sampled T1-weighted MR
image to assist the pattern learning, no significant improvement on the
reconstruction task can be achieved. To this end, we propose an iterative
framework to optimize the under-sampling pattern for MRI acquisition of another
modality that can complement the fully-sampled T1-weighted MR image at
different under-sampling factors, while jointly optimizing the T1-assisted MRI
reconstruction model. Specifically, our proposed method exploits the difference
of latent information between the two modalities for determining the sampling
patterns that can maximize the assistance power of T1-weighted MR image in
improving the MRI reconstruction. We have demonstrated superior performance of
our learned under-sampling patterns on a public dataset, compared to commonly
used under-sampling patterns and state-of-the-art methods that can jointly
optimize both the reconstruction network and the under-sampling pattern, up to
8-fold under-sampling factor.

11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat