Bystanders Key to Cutting Cardiac Arrest Deaths
Cardiac arrest, an abrupt loss of the heart's ability to pump, leads to death within minutes if not treated. A heart attack happens when blood flow to the heart is blocked.
AI Takes Aim at Lung Cancer Screening
A low-dose CT scan is the standard diagnostic test for people at high risk of lung cancer. In the United States, about one-quarter of these scans reveal shadows indicating nodules in the lung. Despite that positive result, fewer than 4 percent of those patients actually have cancer.