Civco Medical Solutions has become an exclusive distributor of Dosimetry Check IGQA, a portal imager-based 3D absolute patient dosimetry system.
Dosimetry Check works with any integrating EPID and any treatment planning system to provide a volumetric measurement for intensity modulated radiotherapy QA, which includes intensity modulated arc therapy delivery techniques, such as RapidArc or volumetric modulated arc therapy.
The company said its Dosimetry Check uses the patient CT data set as a phantom by converting each beam’s 2D image information to a measured calibrated fluence, which is then projected onto the patient’s CT data set.
The company said that this way, the delivered dose is reconstructed with the same CT data set as the original treatment plan thus allowing for planned and measured dose comparison.
Plan comparison includes isodose overlays, dose profiles, point doses, dose differentials, 3D surface doses, 3D gamma analysis, Gamma Volume Histogram analysis, and Comparative Volume Histograms analysis, according to the Kalona, Iowa-based Civco.