Dual-domain convolutional neural networks for improving structural information in 3 T MRI

Yongqin Zhang, Pew Thian Yap, Liangqiong Qu, Jie Zhi Cheng, Dinggang Shen

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


We propose a novel dual-domain convolutional neural network framework to improve structural information of routine 3 T images. We introduce a parameter-efficient butterfly network that involves two complementary domains: a spatial domain and a frequency domain. The butterfly network allows the interaction of these two domains in learning the complex mapping from 3 T to 7 T images. We verified the efficacy of the dual-domain strategy and butterfly network using 3 T and 7 T image pairs. Experimental results demonstrate that the proposed framework generates synthetic 7 T-like images and achieves performance superior to state-of-the-art methods.

Original languageEnglish
Pages (from-to)90-100
Number of pages11
JournalMagnetic Resonance Imaging
Publication statusPublished - 2019 Dec


  • Convolutional neural network
  • Deep learning
  • Image super-resolution
  • Image synthesis
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging


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