THALES 3D MR SCANNER
Motorized water phantom for commissioning and quality assurance of MR-guided LINACs
Stringent requirements from new MR LINAC technology
The age of MRI-based radiation therapy is upon us. This also means new challenges in terms of quality assurance, as existing water phantoms for commissioning and annual inspection of MR LINACs are not suited to this environment. On the one hand, repeatable and precise control in the magnetic field is virtually impossible with conventional water phantoms; on the other, the accelerator design imposes geometric limits.
The demands placed on a motorized water phantom for MR LINACs are therefore high:
- no ferromagnetic components
- radiation-resistant components
- lightweight and compact design
THALES 3D MR SCANNER – water phantom for commissioning and QA
The THALES software offers much more than mere control of the water phantom used for MR LINAC commissioning and quality assurance. You require no additional tools for the acquisition of data, its administration, or its evaluation. The data archive has an intelligent search, so that you can find all measurement sequences in no time and output individual reports. Role-based user management secures access to data and settings. Any current browser can be used as the user interface. Data administration takes place centrally, via a current MS Windows Server version. A standalone solution can also be installed.
Development in progress
THALES 3D MR SCANNER is developed for and with ViewRay MRIdian users. Prototypes are being tested worldwide by renowned institutions.
"We have been positively impressed by the quality of the 3D MR compatible Water Phantom system prototype that has been left to us for evaluation with the ViewRay MRIdian LINAC. We are looking forward the release of the Water Phantom system from LAP on the market".
Winston Wen, PhD, MBA, Director Clinical Physics
Department of Radiation Oncology, Henry Ford Health System
*Average value given here, exact value depending on the applied field size case to case.