At our recent IQM User Workshop, University Hospital Southampton NHS Foundation Trust demonstrated the full clinical power of the Integral Quality Monitor (IQM) – from high-precision SRS to large-field CNS treatments.
Precision for the Most Complex SRS Plans
In her presentation, Mekala Chandrasekaran shared how IQM has been successfully integrated into patient-specific QA for single-isocentre stereotactic radiosurgery (SRS) plans treating multiple brain metastases.
- IQM was commissioned to handle sub-centimeter fields, as small as 0.3 × 0.5 cm²
- Over 1900 segments were evaluated, showing segment-by-segment deviations within 3%
- All plans passed cumulative QA criteria, confirming IQM’s precision even for the most complex cases
“IQM allowed us to verify complex single-isocentre SRS plans with real-time, high-resolution feedback—saving time without compromising accuracy.”
Mekala Chandrasekaran, University Hospital Southampton, United Kingdom
Efficiency Redefined for CNS QA
Laura Smith showcased how IQM transformed their QA workflow, which previously relied on a conventional QA system, for cranial and spinal (CNS) treatments.
With conventional QA:
- Setup time: ~45 minutes
- Measurement time: ~1.5 hours
- Total process with conventional QA: Nearly 3 hours per CNS case
With IQM, the entire QA process now takes less than 26 minutes, saving over 2.5 hours per plan—while maintaining confidence in treatment delivery accuracy.
IQM’s completely automated design integrates directly with the TPS, offering live feedback, built-in tolerances, and automatic reporting.
It’s a true game-changer for multi-isocentre and large-field plans.
Together, these two experiences confirm that:
IQM delivers outstanding accuracy and efficiency across the full range of clinical applications—from the smallest SRS targets to the largest CNS fields.
Southampton’s success story is a testament to IQM’s impact on modern radiotherapy QA: streamlined workflows, precise real-time verification, and enhanced patient safety — all in one system.