It is important to measure and check all geometric distortions in the MRI images that are to be used as a basis for radiotherapy. “Quality control phantoms” are often used to study such distortions
In 2014, the Swedish Testbed for Innovative Radiotherapy will produce a new type of phantom via a collaboration with the Princess Margaret Hospital in Toronto, Canada.
The phantom has a simple design, but is built so as to allow the calculation of distortions within a large area. This increases the efficiency of measuring.
All Swedish university hospitals are participating in the testing of a beta version in 2014. The testing is conducted under the auspices of the testbed via the sub-project for quality assurance of MRI-based radiotherapy, under the leadership of Lars E Olsson, professor of medical radiotherapy at Lund University.