Advances in Low-Dose Tomography

Dear Colleagues,

In recent decades, there has been a focus on evaluating low-dose (LD) CT protocols to mitigate the risks associated with late effects. Initial research on LD scanning predominantly utilized methods that decreased kVp and/or mAs during the image reconstruction process with traditional filtered-back projection (FBP). Decreasing slice thickness enhances the identification of subtle features, such as calcifications; nonetheless, this method also results in increased image noise. Recent reports indicate that the average effective doses for LD CT range from 1.5 to 2 mSv, which corresponds to one-sixth to one-fourth of the doses associated with conventional chest CT. Modern CT scanners employ ultra-low-dose (ULD) scanning, made possible by advancements in various iterative reconstruction (IR) techniques or AI-driven methods. This Special Issue welcomes submissions focused on the latest developments in low-dose 3D imaging. It encompasses a range of tomography techniques, including CBCT, tomosynthesis, limited-angle CBCT, and multi-detector CT, along with their advancements in clinical applications.

Dr. Tony Svahn
Guest Editor

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