منابع مشابه
Dual energy computed tomography for explosive detection
Single energy computed tomography (CT) scanners use measurements of densities to detect explosives in luggage. It is desirable to apply dual energy techniques to these CT scanners to obtain atomic number measurements to reduce false alarm rates. However, the direct application of existing dual energy techniques has practical problems, such as, approximation errors and lack of boundary constrain...
متن کاملAn Introduction to Dual Energy Computed Tomography
Introduction The idea of computed tomography (CT) was first introduced in the 1960’s with the development of modern computer technology. The first scanners were commercially available in the 1970’s, and grew in popularity through the 1980’s. The innovation of helical-scanning CT produced true volume imaging with sub-millimeter resolution. CT can be used for both anatomical as well as pathologic...
متن کاملClinical applications of virtual, non-contrast head images derived from dual-source, dual-energy cerebrovascular computed tomography angiography
Background: This study set out to evaluate the utility of cerebrovascular virtual non-contrast (VNC) scans. Materials and Methods: Conventional non-contrast (CNC) and dual-energy computed tomography angiography (DE-CTA) head scans were conducted on 100 subjects, of which 46 were normal, 15 had parenchymal hematomas of the brain, 13 had ischemic infarction, 22 had tumors, and 4 had calcified les...
متن کاملPotential Applications of Dual Energy Computed Tomography in Dentomaxillofacial Imaging
Computed Tomography (CT) is an indispensable tool for diagnostic imaging of dentomaxillofacial disease, particularly conditions requiring surgical intervention. CT is used widely to provide a three-dimensional image with satisfactory spatial resolution of the bone and tooth condition; however, imaging artifacts caused by metallic dental materials critically impair the quality of diagnostic imag...
متن کاملThe use of Dual-Energy in Computed Tomography
A dual-energy CT using fast kV-switching has recently been installed at the Queen Silvia Children’s Hospital in Gothenburg Sweden. This type of CT has never before been installed for clinical purposes at a children’s hospital. This study aimed to get an understanding of how the dual-energy technique works and what it can be used for. This first study, which found out some of the properties of t...
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ژورنال
عنوان ژورنال: Neuroimaging Clinics of North America
سال: 2017
ISSN: 1052-5149
DOI: 10.1016/j.nic.2017.03.002