Spectral Optimization of Chest CT Angiography with Reduced Iodine Load: Experience in 80 Patients Evaluated with Dual-Source, Dual-Energy CT

Abstract

http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.12120195/-/DC1.

Quantitative analysis of the dual-energy CT virtual spectral curve for focal liver lesions characterization

“…Spectral imaging was recently introduced into clinical DECT imaging. Studies indicate that DECT has the potential to improve lesion detection [1,10], enhance image quality [11], reduce hardening artifacts [12] and substitute non-contrast images with virtual non-contrast [9]. Iodine map, virtual unenhanced and monochromatic images can improve lesion characterization and affect evaluation of the response to therapy and detection of oncology-related disorders [13].…”

Computed tomography of acute pulmonary embolism: state-of-the-art

“…9) [75]. Using dualenergy CT, iodine load can be reduced when virtual monochromatic imaging extrapolated to photon energies of 50 or 70 keV is used [83][84][85]. Saade et al reported that appropriate contrast material volume can be acquired with use of a patientspecific approach; however, this approach is complex in the clinical setting, because it requires the calculation of contrast material volume according to the equation [86].…”

Where do we stand? Functional imaging in acute and chronic pulmonary embolism with state-of-the-art CT

“…2). This can be effectively used to optimize iodine contrast while maintaining an acceptable signal-to-noise and contrast-tonoise ratio [46,47]. This application may be beneficial in settings in which pulmonary vascular attenuation is suboptimal because of low-contrast enhancement, intravascular embolus burden, or partial volume effects.…”