光子计数 CT 综述。

Photon-counting CT review.

机构信息

Siemens Healthcare GmbH, Computed Tomography, 91301 Forchheim, Germany.

出版信息

Phys Med. 2020 Nov;79:126-136. doi: 10.1016/j.ejmp.2020.10.030. Epub 2020 Nov 26.

DOI:10.1016/j.ejmp.2020.10.030

Abstract

Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at very high spatial resolution without electronic noise and with improved tissue contrasts. This review article gives an overview of the principles of photon-counting detector CT, of potential clinical benefits and limitations, and of the experience gained so far in pre-clinical installations.

摘要

光子计数探测器是一种有前途的计算机断层扫描（CT）系统新技术。它们提供了具有非常高空间分辨率的能量分辨 CT 数据，没有电子噪声，并具有改善的组织对比度。本文综述了光子计数探测器 CT 的原理、潜在的临床益处和局限性，以及目前在临床前安装中获得的经验。