Publications

The IQM System has been thoroughly evaluated by some of the world's leading radiation therapy centers.
Select your topic of interest from 12 articles, 11 posters,
19 presentations and 3 technical white papers.

Talamonti - Combined use of IQM and Portal Dosimetry

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..

UFS - Sensitivity analysis of two commerical

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)

Saito - Comparison of MLC error

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.

UC Davis

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.

Real-time detection of deviations

Author:
Martijn Kusters, Richard Canters, Radboud UMC, Nijmegen (The Netherlands)

Summary:
The IQM enables a clinic to do real-time, intra-fraction monitoring of beam delivery. The error sensitivity and specificity can be expected to be sufficient for clinical practice, and performs at least as well as their current equipment (Scandidos Delta 4)

Performance study of IQM for SBRT treatments

Author:
Makan Farrokhkish, Princess Margaret Cancer Centre, Toronto (Canada)

Summary:
IQM is well suited to verify state-of-the-art SBRT treatments utilizing FFF Rapid Arc treatments on a Varian TrueBeam linear accelerator

In vivo dosimetry of stereotactic radiation therapy

Author:
Jianguo Qian, et al, Johns Hopkins University, Baltimore (USA)

Summary:
The author draws the preliminary conclusion that IQM is a stable dosimetric system and can detect dosimetric deviations caused by small leaf errors in stereotactic radiation therapy. The sensitivity to leaf errors is more pronounced for relatively small fields (i.e., small targets) in SBRT. IQM appears to be more sensitive than Mapcheck2 to small leaf errors in small SBRT targets while showing similar sensitivity in relatively large SBRT targets.

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