Kaza Ravi K, Ananthakrishnan Lakshmi, Kambadakone Avinash, Platt Joel F
1 Department of Radiology, University of Michigan Hospitals, 1500 E Medical Center Dr, UH B1 502E, Ann Arbor, MI 48109.
2 Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX.
AJR Am J Roentgenol. 2017 Jun;208(6):1185-1192. doi: 10.2214/AJR.16.17742. Epub 2017 Mar 16.
Dual-energy CT (DECT) is being increasingly used for abdominal imaging because it provides incremental benefit of material characterization without significant increase in radiation dose. This article provides an overview of current DECT techniques and use of DECT in urinary tract imaging for assessment of renal masses and urinary calculi characterization and in CT urography.
Incorporation of DECT into clinical practice and use of its material characterization capabilities in urinary tract imaging enable characterization of urinary calculi and incidental renal lesions and can reduce radiation dose by allowing generation of virtual unenhanced images.
双能CT（DECT）正越来越多地用于腹部成像，因为它在不显著增加辐射剂量的情况下提供了物质表征的额外益处。本文概述了当前的DECT技术以及DECT在泌尿系统成像中的应用，用于评估肾肿块和泌尿系统结石特征以及CT尿路造影。
将DECT纳入临床实践并在泌尿系统成像中利用其物质表征能力，能够对泌尿系统结石和偶然发现的肾脏病变进行表征，并通过生成虚拟平扫图像减少辐射剂量。
