Author: Melissa Ghafarian, et al, Vanderbilt University Medical Center, Nashville, USA Summary: The purpose of this study was to compare pre-treatment VMAT QA measurements and evaluate the MLC error sensitivity of two detectors: the IQM System and the Varian Portal Dosimetry System.
Comparison of pre-treatment VMAT QA between IQM and Varian Portal Dosimetry Read More »
Author: Cinzia Talamonti, et al, University of Florence (Italy) Summary: Evaluation of the combined use of the IQM system and SoftDiso portal dosimetry software, for in vivo dose monitoring by simultaneous detection of delivery and patient setup errors in whole breast irradiation. The combined use of the IQM and SoftDiso allows for fast identification of
Combined use of IQM and an EPID-Based In Vivo Dose Monitoring System Read More »
Author: Marlies Pasler, Lake Constance Radiation Oncology, Singen-Friedrichshafen (Germany) Summary: Download the full presentation summarizing the first year’s clinical experience of using IQM for online QA during every single treatment fraction.. This presentation was given by Marlies Pasler, PhD at the ASTRO 2019 Annual Meeting in Chicago, IL
One year clinical experience with the IQM Read More »
Author: Kilian Michel, et al, iRT Systems, Koblenz (Germany) Summary: Four (4) Elekta Versa HD Linear accelerators at different sites within a network of 16 cancer centers were matched for the 6MV beam energy. As part of commissioning IQM detectors at each of the 16 sites we investigated the agreement of IQM and waterphantom measurements
White Paper: Matching with IQM – The GenesisCare experience Read More »
Author: Marlies Pasler, Livia Marrazzo, et al, Lake Constance Radiation Oncology Center, Friedrichshafen (Germany) and University of Florence (Italy) Summary: Deviations in dose distributions between the original and error-induced plans were compared in terms of detector signal deviation, dose-volume histogram (DVH) metrics and 2D γ-evaluation.
Error detection capability of IQM: an validation study for online VMAT monitoring Read More »
Author: Makan Farrokhkish, et al, Princess Margaret Cancer Centre, Toronto (Canada) Summary: Evaluation of the IQM beam monitoring performance to assess the accuracy and reproducibility of the linac beam delivery. The signal calculation accuracy and measurement reproducibility as well as the error detection capability of the IQM System was evaluated. For this study the author
Real-time verification of VMAT delivery Read More »
Author: Kilian Michel, Lake Constance Radiation Oncology Center, Singen-Friedrichshafen (Germany) Summary: Evaluation of the IQM System for Online Dosimetry during the patient treatment. The long-term signal stability, the error detection sensitivity for induced errors, the correlation of the IQM and the Dose-Volume-Histogram as well as treatment plan verification with the IQM System has been evaluated.
Online Dosimetry with IQM Read More »
Author: Marlies Pasler, Lake Constance Radiation Oncology Center, Friedrichshafen (Germany) Summary: Evaluation of the potential of the IQM System to catch errors before they become clinically relevant. They also checked if IQM would help them to improve the efficiency of their processes and finally they checked if IQM would replace their current pre-treatment QA. They
Pre-clinical tests of the IQM system Read More »
Author: Gabriele Guidi, et al, University Hospital of Modena (Italy) Summary: Evaluation of IQM for the verification of TBI treatments. They investigated the influence of the IQM Detector on depth dose curves and beam profiles for an extended SSD of 170cm. The presentation outlines the considerations that should be applied when utilizing IQM for TBI
Verifying TBI with IQM Read More »
Author: Cinzia Talamonti, et al, University of Florence, AOU Careggi, Florence (Italy) Summary: The authors evaluated the IQM during the pre-clinical testing. She concludes that IQM provides optimal performance for signal reproducibility of complex IMRT plans. IQM is capable of detecting small errors in MU and leaf positions sufficient for clinical practice
