Author profile
Department of Physics, The Verspeeten Family Cancer Centre
To demonstrate a novel method of quantifying respiratory gating beam-on and beam-off latency for Varian TrueBeam linear accelerators and assess the impact of dose rate and machine-specific factors on overall timing performance.
To develop an approach for deriving myocardial perfusion maps directly from multi-phase coronary CT angiography (CTA), eliminating the need for dedicated cardiac CT perfusion (CTP) protocols.
This study develops a CT perfusion (CTP) method for simultaneous lung ventilation and perfusion imaging, overcoming limitations of conventional V/Q scans such as temporal mismatch, low resolution, procedural inefficiency, and qualitative-only evaluation.
For thoracic cancers, respiratory-induced tumor motion must be accounted for to ensure accurate treatment. While real-time tumor tracking represents the ideal in motion management, existing commercial options face significant hurdles to implementation. This s...
Radiotherapy planning for liver tumours remains challenging due to low tumour conspicuity and respiratory motion. This study explores the conditions under which dynamic contrast enhanced (DCE)-CT can be used to enhance tumour delineation for radiotherapy plan...
Desmoplasia around pancreatic cancer reduces blood perfusion and contrast distribution volume (DV), a biomarker of cell density. This study investigates a low-frequency clinical computed tomography perfusion (CTP) protocol to quantify treatment-induced increa...
To quantify the effects of respiratory motion and target size on internal target volume (ITV) geometric accuracy and Hounsfield Units (HU) stability in fast (6 s) and slow (60 s) thoracic HyperSight CBCT acquisitions.
Cardiac radioablation is one of the most demanding applications in radiation oncology, requiring high-dose conformity and steep dose gradients. Conventional C-arm systems, such as Varian TrueBeam (Varian – a Siemens Healthineers Company, Palo Alto, CA), relia...