Kamalian Shahmir, Lev Michael H, Pomerantz Stuart R
Division of Emergency Radiology, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Blake SB Room 29A, Boston, MA 02114, USA.
Division of Emergency Radiology, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, Blake SB Room 29A, Boston, MA 02114, USA.
Neuroimaging Clin N Am. 2017 Aug;27(3):429-443. doi: 10.1016/j.nic.2017.04.009. Epub 2017 Jun 8.
Dual-energy computed tomography (DECT) has become an increasingly widespread and useful component of the neuroimaging armamentarium, offering automated bone removal, metallic artifact reduction, and improved characterization of iodinated contrast enhancement. The application of these techniques to CT neuroangiography enables a number of benefits including more efficient 3D post-processing, contrast dose reduction opportunities, successful differentiation of hemorrhage from contrast staining following thromboembolic recanalization therapy, improved detection of active contrast extravasation in the setting of intracranial hemorrhage, and more precise characterization of atheromatous steno-occlusive disease.
双能计算机断层扫描（DECT）已成为神经影像设备中越来越广泛且有用的组成部分，可实现自动去骨、减少金属伪影以及更好地表征碘化对比剂增强情况。将这些技术应用于CT神经血管造影有诸多益处，包括更高效的三维后处理、降低对比剂剂量的机会、在血栓栓塞再通治疗后成功区分出血与对比剂染色、在颅内出血情况下更好地检测活动性对比剂外渗以及更精确地表征动脉粥样硬化性狭窄闭塞性疾病。
