Dual-Energy CT
Dual-Energy CT
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DOI：
10.1007/978-3-030-58846-5_25
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发表时间：
2020-11
期刊：
影响因子：
--
通讯作者：
I. Al-Najami
中科院分区：
文献类型：
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作者：
I. Al-Najami
双能量CT（DECT）扫描模式于2006年推出。它同时使用两种不同的X射线能谱来获得关于组织成分的额外信息[1]。DECT的基本原理是从相同的解剖位置采集具有不同能量谱的两个数据集[2]。这些光谱是用不同的管电位产生的，通过切换一个X射线管的电压或通过同时在不同的电压下运行两个管。然后，可以从两个吸收测量[3]中获得DECT信息，而传统CT中只有一个。
Dual-energy CT (DECT) scan mode was introduced in 2006. It uses two different X-ray energy spectra simultaneously to obtain additional information on tissue composition [1]. The basic principle of DECT is the acquisition of two datasets with different energy spectra, from the same anatomic location [2]. These spectra are generated with different tube potentials, by switching the voltage of one X-ray tube or by running two tubes at different voltages at the same time. DECT information can then be gained from two absorption measurements [3] in contrast to only one in a conventional CT.