双能量与双源CT：在腹部和盆腔检查中能发挥作用吗？

Dual-energy and dual-source CT: is there a role in the abdomen and pelvis?

作者信息

Fletcher Joel G, Takahashi Naoki, Hartman Robert, Guimaraes Luis, Huprich James E, Hough David M, Yu Lifeng, McCollough Cynthia H

机构信息

Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.

出版信息

Radiol Clin North Am. 2009 Jan;47(1):41-57. doi: 10.1016/j.rcl.2008.10.003.

DOI:10.1016/j.rcl.2008.10.003

PMID:19195533

Abstract

Dual-energy CT refers to the use of CT data representing two different energy spectra and allows for the possibility of differentiating and classifying tissue to obtain material-specific images. Dual-energy CT data can be acquired using various CT hardware platforms, with numerous approaches also existing for display of anatomic and material-specific dual-energy information. Dual-source CT refers to the use of two x-ray sources and two x-ray detectors mounted on a single CT gantry and can be used in either a dual-energy or single-energy mode. This article summarizes and reviews current and potential applications for dual-energy and dual-source CT in the abdomen and pelvis.

摘要

双能CT是指利用代表两种不同能谱的CT数据，能够区分和分类组织以获取特定物质图像。双能CT数据可通过各种CT硬件平台获取，也有多种方法用于显示解剖学和特定物质的双能信息。双源CT是指在单个CT机架上使用两个X射线源和两个X射线探测器，可在双能或单能模式下使用。本文总结并回顾了双能和双源CT在腹部和盆腔的当前及潜在应用。