自适应统计迭代重建技术在降低CT辐射剂量中的应用进展

Application Progress of Adaptive Statistical Iterative Reconstruction in Reducing Radiation Dose

作为一种全新的CT重建算法,自适应统计迭代重建技术(ASIR),不仅可以大幅减少CT辐射剂量,而且与传统的滤过反投影技术相比,具有更加明显的优势。由于它降低辐射剂量且能保持较好的图像质量,在临床上的广泛应用具有很好的前景。本文对ASIR技术的临床应用及发展趋势进行了综述。

As a new CT reconstruction algorithm, adaptive statistical iterative reconstruction （ASIR）, could not only reduce radiation dose at body CT, but also provide imaging examples in comparison with low-dose and standard-dose filtered back projection CT. The ASIR reconstruction algorithm is a promising technique for providing diagnostic quality CT images at significantly reduced radiation doses. The development and application of ASIR were reviewed in this article.