IEEE CS reveals its Technology Predictions Report for 2023

The specific implementations of newly introduced iterative reconstructions on commercial systems vary widely, and are rapidly evolving. General Electric has introduced Adaptive Statistical Iterative Reconstruction , which uses a blend of filtered back projection images with iteratively reconstructed images that model the system noise. The main advantage of this technique is the ability to use lower radiation dose while maintaining image quality. General Electric also announced a Model-Based Iterative Reconstruction , which is a full iterative reconstruction that models not only the noise statistics, but also the geometry of the machine itself . MBIR is not yet commercially available in the US at the time of this writing, but preliminary experience shows that it has a dramatic effect on image quality in the poor contrast-to-noise situation (Fig.2). The main benefit of iterative reconstructions in modern CT therefore appears to be a potential for significant radiation dose reduction.
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