Medical Imaging

At the RSNA meeting in Chicago, researchers reported that Doppler ultrasound can accurately detect vascular occlusions after hyaluronic acid filler injections, enabling targeted treatment to prevent serious harm. In a cohort of 100 patients from six sites (data collected May 2022–April 2025), ultrasound identified blockages—over 40% in perforator vessels and 35% with no flow in major facial arteries—highlighting the nasal region as highest risk and supporting enzyme (hyaluronidase) placement to dissolve filler.