Contrast injector firm Medrad has introduced new extravasation detector technology for its Stellant CT injection system.
Medrad XDS uses radiofrequency (RF) wave technology and a physical property called permittivity to detect the start of an extravasation under a patient's skin and signal the Stellant to stop injections until a clinician can examine the patient. The product has been cleared by the U.S. Food and Drug Administration.
Six installations currently are operating at four clinical sites. The Warrendale, PA, company plans to begin full-scale XDS production in the fourth quarter.
Medrad demonstrated the product publicly for the first time this week at the 2007 American Healthcare Radiology Administrators (AHRA) annual meeting in Orlando.
By AuntMinnie.com staff writers
July 11, 2007
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![Images show the pectoralis muscles of a healthy male individual who never smoked (age, 66 years; height, 178 cm; body mass index [BMI, calculated as weight in kilograms divided by height in meters squared], 28.4; number of cigarette pack-years, 0; forced expiratory volume in 1 second [FEV1], 97.6% predicted; FEV1: forced vital capacity [FVC] ratio, 0.71; pectoralis muscle area [PMA], 59.4 cm2; pectoralis muscle volume [PMV], 764 cm3) and a male individual with a smoking history and chronic obstructive pulmonary disorder (COPD) (age, 66 years; height, 178 cm; BMI, 27.5; number of cigarette pack-years, 43.2, FEV1, 48% predicted; FEV1:FVC, 0.56; PMA, 35 cm2; PMV, 480.8 cm3) from the Canadian Cohort Obstructive Lung Disease (i.e., CanCOLD) study. The CT image is shown in the axial plane. The PMV is automatically extracted using the developed deep learning model and overlayed onto the lungs for visual clarity.](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/03/genkin.25LqljVF0y.jpg?auto=format%2Ccompress&crop=focalpoint&fit=crop&h=112&q=70&w=112)