Calvary Mater Hospital

Treatment planning system (TPS) beam modelling is identified as the largest cause of independent dosimetry audit failure. This study aims to develop and validate a universal beam model (UBM) specific to single-iso multi-target (SIMT) stereotactic radiosurgery...

MLC backlash is a linac failure mode that results in MLC positional error that has been demonstrated to not be prevented by the linac’s internal safety systems [1]. This study aims to inform on the clinical significance of MLC positional error due to MLC back...

Targeting accuracy in stereotactic ablative body radiotherapy (SABR) for hepatocellular carcinoma (HCC) is often hindered by the poor soft-tissue visibility of tumors on standard image-guided radiotherapy using kilovoltage (kV) images. However, ~60% of HCC pa...

Clinical practice in radiotherapy medical physics is strengthened through shared experience and peer learning. Although peer-reviewed outputs and educational resources are essential, they are often insufficiently timely, specific, or practical for day-to-day...

For single-isocenter multi-target (SIMT) stereotactic radiosurgery (SRS), benchmarking, auditing and inter-institutional standardization of dose delivery remains challenging as it requires specialized equipment and expertise. Electronic portal imaging devices...