COMPUTED TOMOGRAPHY

This study compares a 1-hour versus a 4-hour intravenous premedication to prevent allergic reactions in adults with known contrast allergies who need emergency CT scans. About 540 participants will be randomly assigned to one of the two regimens. The goal is to see if the shorter…

This study tests a new computer method called P-MAR that helps reduce blurring and streaks caused by metal objects (like hip replacements or dental fillings) in CT scans. About 120 adults with metal in their body will have their scans processed with and without the new method to …

This study will look at 2000 adults who had a heart CT scan to see how often doctors find unexpected health issues outside the heart, like lung problems or blood vessel abnormalities. The goal is to understand how common these surprise findings are, which can help improve patient…

This study looks at whether getting a CT scan sooner after a heart attack outside the hospital helps people survive. Researchers will review records from 5000 adults who had a heart attack, were revived, and then had a CT scan. The goal is to see if earlier scans are linked to be…

This study tests a new image reconstruction algorithm called Precise Image on CT scans of children aged 18 months to 18 years. Researchers want to see if it produces clearer pictures and helps doctors make better diagnoses compared to the current standard method. About 168 childr…

This study tests a new image-reconstruction method called Precise Image on CT scans taken during medical procedures like needle biopsies or screw placements. Researchers want to see if it gives doctors clearer images to guide these procedures compared to the current standard. Abo…

This study tests a new 3D imaging feature on CT scanners to see if it can automatically plan scans as well as expert technologists. About 274 adults will have a standard CT scan, and the tool's suggestions will be compared to manual planning. The goal is to see if the tool can sa…

This study tests a new image reconstruction algorithm called Precise Image for CT scans of the shoulder, hip, and knee in adults. Researchers want to see if it produces clearer images and gives doctors more confidence in their diagnoses compared to the current standard method. Ab…