Vision 20/20: Single photon counting x-ray detectors in medical imaging
Vision 20/20: Single photon counting x-ray detectors in medical imaging
复制标题
DOI：
10.1118/1.4820371
复制
发表时间：
2013-10-01
期刊：
影响因子：
3.8
通讯作者：
Iwanczyk, Jan S.
中科院分区：
文献类型：
--
作者：
Taguchi, Katsuyuki;Iwanczyk, Jan S.
具有能量鉴别能力的光子计数探测器（PCD）已经被开发用于医学X射线计算机断层扫描（CT）和X射线（XR）成像。使用与当前能量积分探测器完全不同的探测机制，测量待成像物体的材料信息，这些PCD不仅有潜力改善当前的CT和XR图像，如剂量降低，而且还可以打开革命性的新应用，如分子CT和XR成像。然而，PCD的性能并非完美无瑕，开发具有接近理想特性的PCD似乎极具挑战性。在本文中，作者通过对（1）探测器技术、（2）成像技术、（3）系统技术和（4）PCD的潜在临床受益的现状和预测进行综述，提出了我们对PCD-CT和PCD-XR未来的展望。(c)2013年美国医学物理学家协会。
Photon counting detectors (PCDs) with energy discrimination capabilities have been developed for medical x-ray computed tomography (CT) and x-ray (XR) imaging. Using detection mechanisms that are completely different from the current energy integrating detectors and measuring the material information of the object to be imaged, these PCDs have the potential not only to improve the current CT and XR images, such as dose reduction, but also to open revolutionary novel applications such as molecular CT and XR imaging. The performance of PCDs is not flawless, however, and it seems extremely challenging to develop PCDs with close to ideal characteristics. In this paper, the authors offer our vision for the future of PCD-CT and PCD-XR with the review of the current status and the prediction of (1) detector technologies, (2) imaging technologies, (3) system technologies, and (4) potential clinical benefits with PCDs. (c) 2013 American Association of Physicists in Medicine.