mlsanityData to 7 Oct 2026

Cross-domain Denoising for Low-dose Multi-frame Spiral Computed Tomography

arXiv 2304.10839 ↗First posted 21 Apr 2023eess.IV cs.CVcited by 1

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Abstract (arXiv)

Computed tomography (CT) has been used worldwide as a non-invasive test to assist in diagnosis. However, the ionizing nature of X-ray exposure raises concerns about potential health risks such as cancer. The desire for lower radiation doses has driven researchers to improve reconstruction quality. Although previous studies on low-dose computed tomography (LDCT) denoising have demonstrated the effectiveness of learning-based methods, most were developed on the simulated data. However, the real-world scenario differs significantly from the simulation domain, especially when using the multi-slice spiral scanner geometry. This paper proposes a two-stage method for the commercially available multi-slice spiral CT scanners that better exploits the complete reconstruction pipeline for LDCT denoising across different domains. Our approach makes good use of the high redundancy of multi-slice projections and the volumetric reconstructions while leveraging the over-smoothing problem in conventional cascaded frameworks caused by aggressive denoising. The dedicated design also provides a more explicit interpretation of the data flow. Extensive experiments on various datasets showed that the proposed method could remove up to 70% of noise without compromised spatial resolution, and subjective evaluations by two experienced radiologists further supported its superior performance against state-of-the-art methods in clinical practice.

Key facts. Cited by 1 paper in the map (data through 7 Oct 2026). Builds on 34 of its 79 references that are in the map. First posted on arXiv 21 Apr 2023.

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34 of 79 references.

References · 34

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22 more
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  1. 2024DenoMamba: A fused state-space model for low-dose CT denoisingcited by 11