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Annual Scientific Meeting of the Canadian Organization of Medical Physicists — July 9–12, 2014, The Banff Centre, Banff, Alberta, Canada

Walking through the 2014 COMP scientific abstract categories

The 2014 Annual Scientific Meeting of the Canadian Organization of Medical Physicists landed in Banff that June, and the abstract categories offered a useful map of where the discipline was placing its bets. Australian medical physicists, often balancing workloads across vast catchments from Perth to Brisbane, regularly look north to Canadian meetings for benchmarks on planning, commissioning and emerging imaging techniques.

The COMP 2014 conference portal carried the full submission guidelines and category descriptions in one place. Readers comparing it with ACPSEM meetings would have noticed the COMP scheme leaned more heavily on separating imaging from therapy, with several distinct categories for each, and that separation made it easier for hybrid researchers in regional Australian centres to find the right home for their work.

What made the 2014 categorisation interesting was how it straddled established practice and the next wave of methods. Knowledge-based planning was already a buzzword at teaching hospitals like Royal Brisbane and Peter MacCallum in Melbourne, and Monte Carlo was still treated as a category of its own rather than a background tool. Support vector machines and random forests were the dominant statistical tools of the moment, with deep learning rarely mentioned in the way it would be just two years later.

The sections that follow cover imaging, planning, image guidance, dosimetry, computational work, specialised therapies, and the practice-oriented submissions in education and safety. Two short lists then highlight recurring themes and the Australian connection across the categories.

Diagnostic imaging and nuclear medicine categories

The imaging tracks at COMP 2014 split into a diagnostic radiology thread and a separate nuclear medicine thread, with allowance for hybrid submissions. CT optimisation, digital radiography dose tracking and iterative reconstruction featured heavily inside diagnostic imaging.

Australian centres such as Royal Melbourne and Royal Adelaide had been pushing similar optimisation programmes, and a Sydney delegate would have recognised work from Liverpool Hospital appearing under the same headings.

Nuclear medicine submissions spanned SPECT quantitation, PET/CT staging protocols and the early clinical translation of PET/MR. The category allowed room for small-cohort clinical evaluations alongside instrumentation papers from groups like Peter MacCallum and Austin Health in Melbourne.

Radiation therapy treatment planning tracks

The treatment planning category was one of the busiest in 2014, capturing the maturity gradient from 3D conformal through to advanced modulated techniques. Sub-themes included inverse planning optimisation, multi-criteria evaluation, automatic planning, and the developing area of knowledge-based planning.

Australian departments had already started publishing on knowledge-based planning, and a paper from the University of Sydney or the Calvary Mater in Newcastle would not have looked out of place alongside work from the British Columbia Cancer Agency.

Specialised techniques like SBRT and intracranial radiosurgery had their own sub-track, covering single-isocentre multi-target planning, flattening-filter-free beams and small-field dosimetry.

Image-guided radiation therapy and motion management

Image guidance had its own category, distinguishing between in-room imaging, on-couch verification and real-time tracking. KV-CBCT dominated the submissions, with room for ultrasound-guided workflows, surface-guided systems and the emerging field of MR-guided intervention.

Motion management abstracts were placed in the same category, reflecting how 4D imaging had moved from a research curiosity to a clinical expectation for lung and abdominal sites.

Australian centres running busy lung SBRT programmes, including the Royal North Shore and Peter MacCallum, had built their protocols on CBCT and 4DCT combinations. Delegates travelling from down under found the Banff accommodation options listed on the conference site useful for planning an extended stay.

Dosimetry, detectors and quality assurance

Dosimetry and quality assurance were combined into a single broad category, with reviewers expecting work on small-field detectors, in-vivo dosimetry, audit methodologies and updated codes of practice. The TRS-398 protocol and the recently revised AAPM TG-51 addendum were prominent references.

Australian readers would have recognised the relevance: ACPSEM had been running its own comparisons between TRS-398 and the TG-51 lineage. Detector work in 2014 still centred on diode and ion chamber arrays, with diamond detectors and plastic scintillators appearing as research-grade instruments rather than clinical tools.

QA abstracts ranged from linac acceptance testing to EPID-based plan verification, broad enough to absorb both multi-institutional audits and single-centre experience reports.

Computational methods and Monte Carlo simulation

Monte Carlo methods warranted their own category, a tell-tale sign of how central simulation had become to commissioning work. Submissions covered dose calculation in heterogeneous media, modelling of dynamic delivery, and the use of GPU-accelerated codes such as GATE and TOPAS.

By 2014, GPU acceleration had moved from novelty to a recognised performance lever, with abstracts reporting single-digit-minute timings for head and neck calculations that had previously taken hours.

The category also absorbed work on deformable image registration and automatic segmentation. Australian contributors from the Ingham Institute and the University of Western Australia had been building similar pipelines.

Brachytherapy, protons and specialised therapies

Brachytherapy and particle therapy sat under the same umbrella category, with reviewers expecting work on high-dose-rate planning, image-guided applicator placement, and early clinical experience with proton and carbon-ion facilities.

For Australian readers, the brachytherapy side carried more immediate relevance. Peter MacCallum, the Royal Brisbane and Westmead had well-established HDR programmes, particularly for gynaecological and prostate treatments, and the COMP 2014 abstracts on applicator commissioning read like a continuation of work presented at the Australasian Brachytherapy Group meetings.

The category's breadth allowed hybrid abstracts combining brachytherapy with external beam planning, which suited research projects comparing the two modalities head-to-head.

Professional practice, education and patient safety

The practice-oriented category absorbed submissions on competency frameworks, training pathways, incident learning and the patient safety implications of new technology. By 2014, the Canadian community had been investing heavily in incident reporting, and many abstracts described the rollout of regional reporting databases.

For Australian readers, this was an obvious meeting point with ACPSEM's TEAP programme and the state-based safety initiatives grown out of the Australian Commission on Safety and Quality in Health Care.

Submissions on competency assessment for advanced techniques like SBRT mirrored Australasian conversations around scope of practice, and the category was a reminder that medical physics is a regulated profession, where good science alone is not enough without structured pathways into clinical care.

Themes that recurred across 2014 submissions

  • A drift toward knowledge-based planning, with abstracts reporting institutional experience rather than methodological novelty.
  • MRI-guided intervention appearing as an emerging research theme, particularly in prostate and paediatric sites.
  • GPU-accelerated dose calculation moving from proof-of-concept to routine commissioning tools.
  • A surge of work on incident reporting and safety culture, treated as a research question in its own right.
  • 4D imaging and motion management discussed as standard clinical concerns rather than research specialities.
  • Cross-modality planning comparisons, especially between photon and proton or photon and brachytherapy.

Where Australian work appeared in the categories

  • Diagnostic optimisation studies from Sydney and Melbourne teaching hospitals aligned with the diagnostic imaging thread.
  • Knowledge-based planning experience from Peter MacCallum and the Royal Brisbane mapped onto the treatment planning track.
  • 4DCT and SBRT motion management protocols from Newcastle and Liverpool sat inside the image guidance category.
  • TRS-398 versus TG-51 comparisons at several ACPSEM-accredited centres paralleled the dosimetry submissions.
  • Detector development work from the University of Wollongong and University of Western Australia contributed to the QA tracks.
  • Incident learning analysis from state-based safety programmes dovetailed with the patient safety submissions.

The Banff archive remains a useful reference point for sessions anchored in the state of the field in the mid-2010s. The Banff evening entertainment options described alongside the scientific programme show how the meeting balanced posters and committee work with a social calendar that helped early-career physicists build networks. For anyone preparing a teaching session, journal club or planning meeting that needs to anchor itself in a specific moment in the discipline's evolution, the COMP 2014 abstract categories offer a clean snapshot of medical physics between the rise of knowledge-based planning and the coming wave of deep learning, worth a careful read in their original form.