This article describes the principles and applications of iterative reconstruction in X-ray computed tomography. We use several real examples to show how iterative reconstruction can produce higher-quality reconstructed images than the conventional reconstruction method.
This article describes the principles and applications of iterative reconstruction (IR) methods. Section 2 describes the procedure of obtaining projection images and notes some important precautions for CT measurements. Principles of conventional reconstruction algorithms are shown in section 3. The principles and features of the IR method are described in section 4. Finally, section 5 showcases situations where IR works well while the conventional reconstruction method struggles.