FDA clears Viz.AI's stroke detection software
February 13, 2018 -- In a move that blazes a regulatory trail for developers of imaging artificial intelligence (AI) software, the U.S. Food and Drug Administration (FDA) has given its blessing to Viz.AI for Contact, an AI-based application that analyzes CT images and notifies providers that a patient might be having a stroke.  Discuss
French find no need for CT to rule out PE
February 13, 2018 -- French researchers found that a set of clinical criteria was just as accurate as a protocol that included CT pulmonary angiography for ruling out pulmonary embolism (PE) in the emergency department, according to an article published in the February 13 issue of the Journal of the American Medical Association.  Discuss
5 ways to optimize CT lung cancer screening
February 9, 2018 -- An academic hospital that implemented a CT lung cancer screening program obtained similar detection rates as the National Lung Screening Trial. But it also encountered challenges that needed to be addressed to improve the quality of screening, which researchers describe in a new study published in Academic Radiology.  Discuss
Is CT or MR perfusion better for diagnosing CAD?
February 7, 2018 -- Recent advances in scanner technology have made the use of CT stress myocardial perfusion imaging feasible. Just how well it matches up to MR perfusion in the diagnosis of coronary artery disease (CAD) is the central question of a study published in the February issue of Radiology.  Discuss
AI, radiomics help distinguish lung nodules on CT scans
January 31, 2018 -- The combination of artificial intelligence (AI) algorithms and radiomics can distinguish malignant from benign lung nodules on noncontrast CT scans, potentially reducing the number of unnecessary surgical interventions in these cases, according to a multi-institutional team from Cleveland.  Discuss
CT use for pulmonary embolism rises despite low yield
January 30, 2018 -- The use of chest CT to spot pulmonary embolism in hospital emergency department patients has continued to rise, despite a trend toward lower diagnostic yield during the same time frame, according to a study published online January 24 in the American Journal of Roentgenology.  Discuss
Perfusion imaging expands window for stroke treatment
January 25, 2018 -- Perfusion MR and CT images can help clinicians identify stroke patients who could benefit from therapy later than previously thought -- up to 16 hours after the event, according to a study published online January 24 in the New England Journal of Medicine.  Discuss
Stricter CT lung screening criteria deal mixed results
January 22, 2018 -- If you restricted CT lung cancer screening to patients at higher risk of lung cancer, could you save lives while reducing the harms of screening? That's the suggestion of a study published January 22 in JAMA Internal Medicine. But supporters of CT screening say the proposal has risks of its own -- such as missed cancers.  Discuss
Oral contrast not needed to spot kids' appendicitis on CT
January 18, 2018 -- Administering oral plus intravenous contrast to children who were in the emergency department undergoing CT exams for suspicion of acute appendicitis increased their wait time without providing any diagnostic benefit, according to a study published in Emergency Radiology.  Discuss
Better clinical histories improve CT interpretation, billing
January 16, 2018 -- How can emergency departments improve their interpretation and billing for head CT exams? A paper published in the January issue of the American Journal of Roentgenology explains that reminding physicians to include thorough clinical histories with their orders may do the trick.  Discuss