Data Collection of New Spectral CT Imaging Method

Inclusion Criteria: * Who are ≥18 years of age; * Able to sign and date the informed consent form; AND, * Who have in the past 90 days or will in the future 30 days of the investigational scan undergo a clinically indicated CT exam within the St. Luke's University Hospital Network of the neck, chest, abdomen, pelvis, or extremities. Exclusion Criteria: * Who are pregnant or lactating; * Who were previously enrolled in this study; * For planned contrast-enhanced investigational CT exams, anyone with known or suspected allergy to iodinated contrast agents; * For planned contrast-enhanced investigational CT exams, anyone with known or suspected renal insufficiency as determined by site medical personnel; * Who need urgent or emergent care; * Who have any conditions that, in the opinion of the PI or designee, would interfere with the evaluation of the results or constitute a health hazard for the subject; OR, * Who are unwilling to have GEHC personnel present for the CT exam.