Cavitation Dose Painting (IMAGE) Washington University in St. Louis Caption Researchers from the McKelvey School of Engineering and Washington University School of Medicine in St. Louis are one step closer to delivering precise amounts of medication to exact location, repurposing an existing imaging 'painting' method. Cavitation images (left); PET images (middle); overlay of the two (right). (Courtesy: Hong Chen lab) Credit Hong Chen lab Usage Restrictions Usage allowed with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.