Accuracy of Dual-Energy CT Virtual Unenhanced and Material-Specific Images: A Phantom Study
Baojun Li, Mark Pomerleau, Avneesh Gupta, Jorge A. Soto, Stephan W. Anderson
Abstract
Virtual unenhanced images are reasonably accurate for simulated soft tissues and contrast materials, except for simulated bone. The lower limit of iodine quantification is radiation-dose dependent. For typical dose levels, 0.5 mg/mL iodine concentration is the lower threshold for iodine detection accuracy.
Topics & Concepts
MedicineImaging phantomDual energyNuclear medicineRadiologyMedical physicsPathologyBone mineralOsteoporosisAdvanced X-ray and CT ImagingRadiation Dose and ImagingMedical Imaging Techniques and Applications