Departments of Radiological Sciences, Oncology, and Pathology, University of Rome Sapienza-Polo Pontino, Via Franco Faggiana 34, Latina, Italy.
AJR Am J Roentgenol. 2012 Nov;199(5 Suppl):S98-S105. doi: 10.2214/AJR.12.9207.
Dual-energy CT (DECT) is an innovative imaging technique that operates on the basic principle of application of two distinct energy settings that make the transition from CT attenuation-based imaging to material-specific or spectral imaging. The purpose of this review is to describe the use of DECT in oncology.
Applications of DECT in clinical practice are based on two capabilities: material differentiation and material identification and quantification. The capability of obtaining different material-specific datasets (iodine map, virtual unenhanced, and monochromatic images) in the same acquisition can improve lesion detection and characterization. This approach can also affect evaluation of the response to therapy and detection of oncology-related disorders. DECT is an innovative imaging technique that can dramatically affect the care of oncologic patients.
能谱 CT（DECT）是一种创新的成像技术，基于应用两种不同能量设置的基本原理，从基于 CT 衰减的成像过渡到物质特异性或光谱成像。本综述的目的是描述 DECT 在肿瘤学中的应用。
DECT 在临床实践中的应用基于两个功能：物质分化和物质识别与定量。在相同采集过程中获得不同物质特异性数据集（碘图、虚拟非增强和单能图像）的能力可以提高病变检测和特征描述。这种方法还可以影响对治疗反应的评估和肿瘤相关疾病的检测。DECT 是一种创新的成像技术，可以极大地影响肿瘤患者的治疗。
