Dual energy CT: preliminary observations and potential clinical applications in the abdomen
Dual energy CT: preliminary observations and potential clinical applications in the abdomen
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DOI：
10.1007/s00330-008-1122-7
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发表时间：
2009-01-01
影响因子：
5.9
通讯作者：
Macari, Michael
中科院分区：
文献类型：
--
作者：
Graser, Anno;Johnson, Thorsten R. C.;Macari, Michael
双能CT（DECT）是一种新技术，它可以根据在不同管电位下两次同步CT采集获得的CT密度值来区分材料和组织。随着新的双源CT系统的引入，该技术现在可以常规用于腹部成像。潜在的临床应用包括评价肾脏肿块、肝脏病变、泌尿系结石、小肠、胰腺和肾上腺。在腹主动脉瘤的CT血管造影术中，双能CT技术可用于从数据集中去除骨骼，虚拟非增强图像可区分造影剂与血管内支架患者的钙化血栓。本文综述了双能CT在腹部的潜在应用、实用指南和局限性。
Dual energy CT (DECT) is a new technique that allows differentiation of materials and tissues based on CT density values derived from two synchronous CT acquisitions at different tube potentials. With the introduction of a new dual source CT system, this technique can now be used routinely in abdominal imaging. Potential clinical applications include evaluation of renal masses, liver lesions, urinary calculi, small bowel, pancreas, and adrenal glands. In CT angiography of abdominal aortic aneurysms, dual energy CT techniques can be used to remove bones from the datasets, and virtual unenhanced images allow differentiation of contrast agent from calcifying thrombus in patients with endovascular stents. This review describes potential applications, practical guidelines, and limitations of dual energy CT in the abdomen.