Publications
The IQM System has been thoroughly evaluated by some of the world's leading radiation therapy centers.
Select your topic of interest from 15 articles, 16 posters,
18 presentations and 3 technical white papers.
Feasibility of using a transmission ion chamber for QA tests of medical linear accelerators
Author:
Makan Farrokhkish, et al, Multi-Center Study
Summary:
This multi-center study investigated the IQM System for constancy measurements of various beam parameters for photon beams. The results suggest that the system can be used for most of the routine QA tests effectively and efficiently.
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Measuring Photon Beam Energy Changes on an Elekta Versa HD using 5 methods
Author:
K.L. Yun, et al, Allegheny Health Network (USA)
Summary:
The clinical physics group compared the sensitivity of the IQM System to beam energy changes against 4 other conventional methods.
They concluded that the IQM device was approximately twice as sensitive as the other chamber methods.
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Comparison of IQM and SRS MapCheck for pre-treatment SRS/SRT QA
Author:
Y. Liang, et al, Allegheny Health Network (USA)
Summary:
The clinical physics group compared Sun Nuclear SRS MapCheck and IQM for the patient-specific QA of three single ISO multi-met SRS plans created with the Brainlab Elements MME TPS.
They concluded that both systems showed good agreement between the QA results, but that the QA time was dramatically reduced with IQM by approximately a factor of 10.
Comparison of pre-treatment VMAT QA between IQM and Varian Portal Dosimetry
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.
Combined use of IQM and an EPID-Based In Vivo Dose Monitoring System
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 both delivery and setup errors and substantially reduces the impact of error identification and correction on the treatment workflow.
Evaluation of the signal response with the EPID and the IQM for SBRT QA
Author:
Adam Harpley, et al, Vanderbilt University Medical Center, Nashville (USA)
Summary:
The clinical physics group introduced a variety of clinically significant treatment delivery errors into 8 retrospective SBRT plans and compared the error sensitivity of IQM to their Varian Portal Dosimetry system.
Optimization of DLG and MLC transmission factors
Author:
Stephen Martinez, et al, Vanderbilt University Medical Center, Nashville (USA)
Summary:
The clinical physics group aimed to compare the capability of the iQM system for optimizing MLC model specific parameters: Dynamic Leaf Gap and Transmission Factor to a IBA MatriXX spatial array. IQM shows a VERY small variation in the measured results and is able to clearly determine the best match of the minimum percent absolute error between predicted and measured signal. Download the poster to learn that IQM facilitated a higher resolution (0.01 mm) measurement than was possible with MatriXX..
Sensitivity evaluation of two QA system to organ-dose variation of VMAT plans
Author:
Oluwaseyi M. Oderinde, et al, University of the Free State, Bloemfontein (South Africa)
Summary:
Assess the dose variation sensitivity of two quality assurance (QA) devices (IQM and MatriXXEvolution)
Comparison of MLC error sensitivity of various QA systems for VMAT Plan QA
Author:
Masahide Saito, et al, University of Yamanachi (Japan)
Summary:
This article compares the MLC error sensitivity of various measurement devices for VMAT pre‐treatment quality assurance (QA).
Correlation of error detection sensitivities for two VMAT QA systems
Author:
Kilian Michel, Lake Constance Radiation Oncology Center, Singen-Friedrichshafen (Germany)
Summary:
Sensitivity of PTW Octavius, IBA Dolphin and IQM for various delivery errors
IMRT Plan QA with IQM
Author:
Sonja Wegener, et al, Unversity Clinic Wurzburg (Germany)
Summary:
Evaluation of the IQM System for IMRT plan QA. The IQM Calculation algorithm has been validated for a wide spectrum of clinical IMRT cases. The error sensitivity of the IQM System has been tested with a variety of induced errors. The error detection capability of the IQM System has been compared against their current IMRT QA approaches.
Characterization and evaluation of the IQM System
Author:
David Hoffman, UC Comprehensive Cancer Center, Sacramento (USA)
Summary:
This article outlines a comprehensive evaluation of the Integral Quality Monitor (IQM) that took place at the UC Davis Comprehensive Cancer Center throughout the year 2015.
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