Photon-counting Detector CT: System Design and Clinical Applications of an Emerging Technology

被引：385

作者：

Leng, Shuai ^{[1
]}

Bruesewitz, Michael ^{[1
]}

Tao, Shengzhen ^{[1
]}

Rajendran, Kishore ^{[1
]}

Halaweish, Ahmed F. ^{[2
]}

Campeau, Norbert G. ^{[1
]}

Fletcher, Joel G. ^{[1
]}

McCollough, Cynthia H. ^{[1
]}

机构：

[1] Mayo Clin, Dept Radiol, 200 First St SW, Rochester, MN 55905 USA

[2] Siemens Healthcare, Malvern, PA USA

来源：

RADIOGRAPHICS | 2019年 / 39卷 / 03期

基金：

美国国家卫生研究院;

关键词：

SILICON-STRIP DETECTOR; COMPUTED-TOMOGRAPHY; SPECTRAL CT; IMAGE-RECONSTRUCTION; NOISE-REDUCTION; EXPERIMENTAL FEASIBILITY; PERFORMANCE; DECOMPOSITION; RESOLUTION; IODINE;

D O I：

10.1148/rg.2019180115

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Photon-counting detector (PCD) CT is an emerging technology that has shown tremendous progress in the last decade. Various types of PCD CT systems have been developed to investigate the benefits of this technology, which include reduced electronic noise, increased contrast-to-noise ratio with iodinated contrast material and radiation dose efficiency, reduced beam-hardening and metal artifacts, extremely high spatial resolution (33 line pairs per centimeter), simultaneous multienergy data acquisition, and the ability to image with and differentiate among multiple CT contrast agents. PCD technology is described and compared with conventional CT detector technology. With the use of a whole-body research PCD CT system as an example, PCD technology and its use for in vivo high-spatial-resolution multienergy CT imaging is discussed. The potential clinical applications, diagnostic benefits, and challenges associated with this technology are then discussed, and examples with phantom, animal, and patient studies are provided. (C) RSNA, 2019

引用

页码：729 / 743

页数：15

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