Utilisation dʹun système dʹimagerie en temps réel dans le contrôle quotidien de patients traités par irradiation pour un cancer thoracique

SummaryPurpose pective analysis of the results obtained with daily interactive use of portal imagingfor monitoring thoracic cancer radiotherapy. als and methods ens electronic portal imaging system called Beamviewplus™ was used daily in 15 lung cancer patients for each X-ray field. Out of the 714 expected portal images, 585 (82%), were obtained and printed s nted 94 errors in the 585 successful controls (16%). Four main classes of errors were identified: irradiation field placement (47 cases, 50%), shielding placement (30 cases, 32%), patientʹs position on the tilt examining table (14 cases, 15%), and selection of the energy (3 cases, 3%). Forty percent of these errors were potentially serious in terms of treatment volume and vital organ protection. sion ortal imaging control could easily detect errors because they occurred randomly. We thus consider the use of this daily system helpful for patient management.