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Tree Core Analysis with X-ray Computed Tomography

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Published on: September 22, 2023

Bronnikov-aided correction for x-ray computed tomography.

Yoni De Witte¹, Matthieu Boone, Jelle Vlassenbroeck

¹Department of Subatomic and Radiation Physics, Ghent University, Proeftuinstraat 86, 9000 Ghent, Belgium. Yoni.DeWitte@UGent.be

Journal of the Optical Society of America. A, Optics, Image Science, and Vision

|April 3, 2009

Summary

This summary is machine-generated.

A new method called Bronnikov-aided correction (BAC) removes phase contrast artifacts in x-ray computed tomography (CT) scans. This technique improves image quality for very-low-absorbing samples, enabling clearer reconstructions without significant effort.

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Area of Science:

Medical Imaging
Physics

Background:

X-ray computed tomography (CT) is a powerful imaging technique.
Scans of low-absorbing samples can produce mixed absorption and phase contrast signals.
Phase contrast in CT images can lead to severe artifacts in reconstructed slices.

Purpose of the Study:

To develop and evaluate a method for correcting phase contrast artifacts in x-ray CT.
To improve the quality of reconstructed images from samples with low absorption.

Main Methods:

A novel correction method, Bronnikov-aided correction (BAC), was applied to projection images.
The BAC method removes phase contrast signals from mixed phase and absorption images.
Corrected images were reconstructed using a standard filtered backprojection algorithm.

Main Results:

The BAC method effectively removed phase artifacts from CT reconstructions.
Reconstructions using BAC showed significantly fewer artifacts compared to conventional methods.
The method was successfully tested on both biological and pharmaceutical samples.

Conclusions:

Bronnikov-aided correction (BAC) is an effective technique for mitigating phase contrast artifacts in x-ray CT.
BAC can be broadly applied across various applications with minimal additional effort.
This method enhances the utility of CT for imaging very-low-absorbing samples.