Rotkopf Lukas T, Wehrse Eckhard, Froelich Matthias F
Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, 69120, Heidelberg, Deutschland.
Fakultät für Medizin Heidelberg, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Deutschland.
Radiologie (Heidelb). 2022 Jun;62(6):504-510. doi: 10.1007/s00117-022-01010-w. Epub 2022 May 20.
Since its introduction, spectral computed tomography has become an integral part of clinical imaging with a variety of possible applications. Over time, technical innovations have considerably improved the spatial and energy resolution. The recent introduction of computed tomographs utilizing photon-counting x‑ray detectors has opened up further applications, which need to be investigated regarding their clinical utility.
This article gives an overview of the development of spectral computed tomography in general and photon-counting computed tomography in particular, with a special focus on recent technical developments and their clinical applications.
Very likely, photon-counting X‑ray detectors will over time prevail over conventional energy-integrating detectors. Most technical problems hindering clinical use have been overcome, so that the unquestionable advantages outweigh the remaining disadvantages. Further developments especially of detector electronics, reconstruction algorithms and software-based postprocessing will further support its clinical introduction.
自引入以来，光谱计算机断层扫描已成为临床成像不可或缺的一部分，具有多种可能的应用。随着时间的推移，技术创新显著提高了空间和能量分辨率。最近采用光子计数X射线探测器的计算机断层扫描仪的推出开辟了更多应用，需要对其临床效用进行研究。
本文概述了光谱计算机断层扫描的总体发展，特别是光子计数计算机断层扫描，特别关注近期的技术发展及其临床应用。
随着时间的推移，光子计数X射线探测器很可能会取代传统的能量积分探测器。阻碍临床应用的大多数技术问题已得到克服，因此其无可争议的优势超过了剩余的劣势。探测器电子学、重建算法和基于软件的后处理等进一步发展将进一步支持其临床应用。
