iScience (Jan 2024)

Promoting fast MR imaging pipeline by full-stack AI

  • Zhiwen Wang,
  • Bowen Li,
  • Hui Yu,
  • Zhongzhou Zhang,
  • Maosong Ran,
  • Wenjun Xia,
  • Ziyuan Yang,
  • Jingfeng Lu,
  • Hu Chen,
  • Jiliu Zhou,
  • Hongming Shan,
  • Yi Zhang

Journal volume & issue
Vol. 27, no. 1
p. 108608

Abstract

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Summary: Magnetic resonance imaging (MRI) is a widely used imaging modality in clinics for medical disease diagnosis, staging, and follow-up. Deep learning has been extensively used to accelerate k-space data acquisition, enhance MR image reconstruction, and automate tissue segmentation. However, these three tasks are usually treated as independent tasks and optimized for evaluation by radiologists, thus ignoring the strong dependencies among them; this may be suboptimal for downstream intelligent processing. Here, we present a novel paradigm, full-stack learning (FSL), which can simultaneously solve these three tasks by considering the overall imaging process and leverage the strong dependence among them to further improve each task, significantly boosting the efficiency and efficacy of practical MRI workflows. Experimental results obtained on multiple open MR datasets validate the superiority of FSL over existing state-of-the-art methods on each task. FSL has great potential to optimize the practical workflow of MRI for medical diagnosis and radiotherapy.

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