If the data transfer is incomplete or beam delivery parameters are somehow changed, MobiusFX will immediately alert the user to those discrepancies. MobiusFX checks the machine starting positions against the TPS plan to verify complete and accurate plan data transfer. MobiusFX provides a root-mean-square error analysis of every moving delivery component, segregating and isolating machine performance errors for the user. 3D comparison metrics, including Target Coverage, DVH Limits, and 3D Gamma, specifically identify clinically relevant errors. MobiusFX automatically compares its delivered dose to the original TPS dose in a 3D “apples to apples” comparison. MobiusFX automatically captures measurements of each delivery via machine-measured log files, determines the delivered fluence distribution from those measurements, and uses a GPU-accelerated collapsed-cone dose algorithm to interpret 3D delivered dose in the patient. MobiusFX 3D IMRT/VMAT QA and daily treatment QA In addition to verifying dose, MobiusCalc also performs a virtual delivery of each plan to verify that the plan is within machine delivery parameters and provides sufficient gantry clearance. Users can view gamma and isodose differences at isocenter in the transverse, coronal, and sagittal planes or use the 3D slice viewer to scroll throughout the complete patient CT to evaluate differences. MobiusCalc displays a global 3D gamma comparison between the TPS dose and the Mobius dose in the patient CT. Users can also customize the DVH limits in MobiusCalc according to their own site-specific or physician-specific protocols to verify that both the TPS dose and the MobiusCalc dose meet all relevant constraints. MobiusCalc arrives pre-built with RTOG Conventional Fractionation and TG-101 SRS/ SBRT protocols and automatically assigns relevant DVH limits to each treatment plan based on structure names. Users can also incorporate target objectives and isolate contouring errors with the automatic stray voxel check. MobiusCalc automatically identifies target structures and verifies that their mean dose and coverage agree with the TPS dose. In minutes, an email alerts you if any issues are detected in the four verified areas: Target Dose, DVH Limits, 3D Gamma, and Deliverability. A simple TPS export triggers MobiusCalc’s automatic 3D plan re-calculation in the patient CT using independently verified beam models and a GPU-accelerated collapsed-cone dose algorithm.
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