The Use of Artificial Intelligence in Computed Tomography Image Reconstruction: A Systematic Review

Authors

  • Theresa Lee FCAMART Medical Radiation Imaging and Radiation Sciences, Monash University, Melbourne, Australia
  • Euclid Seeram FCAMART Medical Radiation Imaging and Radiation Sciences, Monash University, Melbourne, Australia

DOI:

https://doi.org/10.17140/ROJ-4-129

Keywords:

Computed tomography (CT), Artificial Intelligence (AI), Image reconstruction (IN), Machine learning (ML), Deep learning (DL), Dose reduction

Abstract

Background
Current image reconstruction techniques in computed tomography (CT) such as filtered back-projection (FBP) and iterative reconstruction
(IR) have limited use in low-dose CT imaging due to poor image quality and reconstruction times not fit for clinical
implementation. Hence, with the increasing need for radiation dose reductions in CT, the use of artificial intelligence (AI) in image
reconstruction has been an area of growing interest.
Aim
The aim of this review is to examine the use of AI in CT image reconstruction and its effectiveness in enabling further dose reductions
through improvements in image quality of low-dose CT images.
Method
A review of the literature from 2016 to 2020 was conducted using the databases Scopus, Ovid MEDLINE, and PubMed. A subsequent
search of several well-known journals was performed to obtain additional information. After careful assessment, articles
were excluded if they were not obtainable from the databases or not available in English.
Results
This review found that deep learning-based algorithms demonstrate promising results in improving the image quality of low-dose
images through noise suppression, artefact reduction, and structure preservation in addition to optimising IR methods.
Conclusion
In conclusion, with the two AI-based CT systems currently in clinical use showing favourable benefits, it is expected that AI algorithms
will continue to proliferate and enable significant dose reductions in CT imaging.

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Published

2020-06-12

How to Cite

Theresa Lee, & Euclid Seeram. (2020). The Use of Artificial Intelligence in Computed Tomography Image Reconstruction: A Systematic Review. Radiology, 4(2), 30–38. https://doi.org/10.17140/ROJ-4-129

Issue

Vol. 4 No. 2 (2020): Volume 4 Issue 2 2020

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Articles

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