Caren van Roekel

65 Radioembolization FIGURE 12A-D. Figure a shows a contrast-enhanced CT image of a 60-year old man with an HCC (white arrow). Figure b shows the 90 Y-PET CT after treatment with radioembolization of the right hemiliver (120 Gy, Theraspheres). Figure c shows a CT image of a hypertrophied left hemiliver (dotted white arrow), 3 months after radioembolization. Figure d shows a contrast-enhanced CT image of the left hemiliver (dotted white arrow) 4 months after right hemihepatectomy. 9.4. Single-day sessions Currently, the standard radioembolization treatment algorithm is a work-up with 99m Tc-MAA, followed by administration of the 90 Y-microspheres about 2 weeks later. This can be quite burdensome for patients, as they have to visit the hospital multiple times. Furthermore, it is expensive, since in most hospitals, radioembolization is not performed as an outpatient procedure so patients will have to stay the night after treatment. Gates et al. described the outpatient single-session radioembolization with 90 Y-glass microspheres of 14 patients. Before the patients arrived, the hepatic volume and number of primary vessels supplying the treatment volume were 2