Publications
The IQM System has been thoroughly evaluated by some of the world's leading radiation therapy centers.
Select your topic of interest from 16 articles, 21 posters,
20 presentations and 3 technical white papers.
Beyond Conventional QA: IQM Real-time Monitoring for Every Patient
Author:
Kumagai, S., Teikyo University Hospital, Tokyo, Japan
Summary:
Shinobu Kumagai from Teikyo University Hospital presents the clinical integration of the IQM System for real-time beam monitoring in radiotherapy. The talk highlights its application in VMAT-TBI, Online-ART, and daily treatments, demonstrating how IQM enhances safety, accuracy, and workflow efficiency across a wide range of clinical cases.
Experience of IQM at Southampton for SRS cases
Author:
Chandrasekaran, M., et al, University Hospital Southampton, United Kingdom
Summary:
Mekala Chandrasekaran from University Hospital Southampton presented their successful implementation of IQM for single-isocentre SRS treatments of multiple brain metastases. By extending beam modeling to sub-centimeter fields, the team achieved segment-by-segment accuracy within 3%, confirming IQM’s precision and reliability for complex stereotactic QA.
Experience of IQM at Southampton for CNS and SRS cases
Author:
Smith, L., et al, University Hospital Southampton, United Kingdom
Summary:
Laura Smith from University Clinic Southampton presents their experience using IQM for CNS and SRS treatments. By replacing Delta4 with IQM, her team reduced verification time from 3 hours to under 30 minutes per case. The presentation highlights IQM’s efficiency, automation, and suitability for complex, multi-isocentre plans—making it a powerful tool for streamlining QA and improving clinical workflow.
IQM verification for breast VMAT treatments
Author:
Duwaerts, R., et al, AZ Turnhout, Belgium
Summary:
Ruben Duwaerts from AZ Turnhout presents their clinical experience using IQM for breast VMAT verification. He highlights the system’s seamless integration, time-saving automated workflows, and its effectiveness across various fractionation regimens and treatment techniques.
Enhancing quality assurance in hybrid DCAT plans: The impact of reduced maximum dose rate
Author:
Kollotzek, S., et al, Universitätsklinik für Strahlentherapie-Radioonkologie, Medizinische Universität Innsbruck, Austria
Summary:
The goal of this project is to evaluate the accuracy of dose delivery for hybrid DCAT plans under different conditions, with a focus on how adjusting the linac’s maximum dose rate impacts the alignment between planned and delivered doses.
Implementation of a gantry mounted ion chamber for the machine QA and clinical routine
Author:
R. Nachtigall, et al, Strahlenzentrum Hamburg MVZ, Germany
Summary:
The purpose of this project is to evaluate if the IQM is a reliable alternative to the phantom based patient plan verification offering the possibility to shift the QA to the first treatment fraction.
Longitudinal Evaluation of the IQM for Routine Clinical Quality Assurance of Photon Beams
Author:
O. Grahm Valadie1, et al, Cedars-Sinai Medical Center, Los Angeles, CA
Summary:
The purpose of this project is to compare the QA capabilities of the IQM to clinically established QA devices and to shows its potential to efficiently replace current QA devices, while minimizing setup error for daily and monthly QA.
Using the IQM Transmission Detector to Monitor Linac Performance
Author:
Dan Pavord, Allegheny Health Network, Pittsburgh, PA
Summary:
Dan Pavord, Chief of Medical Physics at Allegheny Health Network in Pittsburgh, presented groundbreaking findings on the use of the Integral Quality Monitor (IQM) for comprehensive machine quality assurance (QA).
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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Optimisation of Elements beam model and IQM dose calculation model for single isocentre multiple brainmets patient specific dosimetry
Author:
M. Chandrasekaran1, et al, University Hospital Southampton (UK)
Summary:
This study aimed to find the best fit Elements multi leaf collimator (MLC) parameters and improve the accuracy of the IQM dose calculation model for single isocentre treatment for
multiple brainmets (MBM) and patient specific dosimetry (PSD) for Elekta Agility Versa HD linac.
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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.
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