Multi-source inverse-geometry CT: from system concept to research prototype

被引：11

作者：

De Man, Bruno ^{[1
]}

Caiafa, Antonio ^{[1
]}

Cao, Yang ^{[1
]}

Frutschy, Kristopher ^{[1
]}

Harrison, Daniel ^{[1
]}

Inzinna, Lou ^{[1
]}

Longtin, Randy ^{[1
]}

Neculaes, Bogdan ^{[1
]}

Reynolds, Joseph ^{[1
]}

Roy, Jaydeep ^{[1
]}

Short, Jonathan ^{[1
]}

Uribe, Jorge ^{[1
]}

Waters, William ^{[1
]}

Yin, Zhye ^{[1
]}

Zhang, Xi ^{[1
]}

Zou, Yun ^{[1
]}

Senzig, Bob ^{[2
]}

Baek, Jongduk ^{[3
]}

Pelc, Norbert ^{[3
]}

机构：

[1] GE Global Res, Niskayuna, NY 12309 USA

[2] GE Healthcare, Waukesha, WI 53188 USA

[3] Stanford Univ, Stanford, CA 94305 USA

来源：

2009 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5 | 2009年

关键词：

D O I：

10.1109/NSSMIC.2009.5401808

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Third-generation CT architectures are approaching fundamental limits. Dose-efficiency is limited by finite detector efficiency and by limited control over the X-ray flux spatial profile. Increasing the volumetric coverage comes with increased scattered radiation, cone-beam artifacts, Heel effect, wasted dose and cost. Spatial resolution is limited by focal spot size and detector cell size. Temporal resolution is limited by mechanical constraints, and alternative geometries such as electron-beam CT and dual-source CT come with severe tradeoffs in terms of image quality, dose-efficiency and complexity. The concept of multi-source inverse-geometry CT (IGCT) breaks through several of the above limitations [1-3], promising a low-dose high image quality volumetric CT architecture. In this paper, we present recent progress with the design and integration efforts of the first gantry-based multi-source CT scanner.

引用

页码：3531 / +

页数：2

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