A5005064297- Advanced Radiotherapy Techniques
- Medical Imaging Techniques and Applications
- Radiation Therapy and Dosimetry
- Advanced MRI Techniques and Applications
- Chemotherapy-related skin toxicity
- Endometrial and Cervical Cancer Treatments
- Management of metastatic bone disease
- Nonmelanoma Skin Cancer Studies
- Prostate Cancer Diagnosis and Treatment
- Cutaneous Melanoma Detection and Management
- Brain Metastases and Treatment
- Histone Deacetylase Inhibitors Research
- Nuclear Physics and Applications
- Breast Cancer Treatment Studies
- Advanced X-ray and CT Imaging
- Glioma Diagnosis and Treatment
- Nuclear reactor physics and engineering
- Advances in Oncology and Radiotherapy
- Head and Neck Surgical Oncology
- Prostate Cancer Treatment and Research
- Radiation Dose and Imaging
- Salivary Gland Tumors Diagnosis and Treatment
- Head and Neck Cancer Studies
- Cancer and Skin Lesions
- Nail Diseases and Treatments
South Western Sydney Local Health District
2024
Ingham Institute
2024
St Vincent's Hospital Sydney
2021-2024
UNSW Sydney
2024
Liverpool Hospital
2023
Australian and New Zealand Intensive Care Society
2021-2022
Sydney Local Health District
2022
Mater Health Services
2018-2022
Sydney Hospital
2020
Royal Brisbane and Women's Hospital
2014-2015
The magnetic resonance linear accelerator (MRL) offers improved soft tissue visualization to guide daily adaptive radiotherapy treatment. This manuscript aims report initial experience using a 1.5 T MRL in the first 6 months of operation, including training, workflows, timings and dosimetric accuracy.All staff received training MRI safety workflows. Initial sites chosen for treatment were stereotactic hypofractionated prostate, thoraco-abdomino-pelvic metastasis, prostate bed bladder. Adapt...
Abstract Recently, there has been increased interest worldwide in the use of conventional linear accelerator (linac)-based systems for delivery stereotactic radiosurgery/radiotherapy (SRS/SRT) contrasting with historical specialised clinics dedicated equipment. In order to gain an understanding and define current status SRS/SRT Australia New Zealand (ANZ) we conducted surveys provided a single-day workshop. Prior workshop ANZ medical physicists were invited complete two surveys: departmental...
Abstract Purpose The aim of this study was to assess the use magnetic resonance guided adaptive radiotherapy (MRgART) in post‐prostatectomy setting; comparing dose accumulation for our initial seven patients treated with fully workflow on Unity MR‐Linac (MRL) and non‐adaptive plans generated offline. Additionally, we analyzed toxicity receiving treatment. Methods Seven were MRgART. prescription 70–72 Gy 35–36 fractions. Patients an adapt shape (ATS) technique. For each clinically delivered...
Abstract Consistency and clear guidelines on dosimetry are essential for accurate precise dosimetry, to ensure the best patient outcomes allow direct dose comparison across different centres. Magnetic Resonance Imaging Linac (MRI-linac) systems have recently been introduced Australasian clinics. This report provides recommendations reference measurements MRI-linacs behalf of Australiasian College Physical Scientists Engineers in Medicine (ACPSEM) MRI-linac working group. There two...
The introduction of magnetic resonance (MR) linear accelerators (MR-Linac) marks the beginning a new era in radiotherapy. MR-Linac systems are currently being operated by teams radiation therapists (RTs), oncology medical physicists (ROMPs) and oncologists (ROs) due to diverse complex tasks required deliver treatment. This is resource-intensive logistically challenging. RT-led service delivery at treatment console paramount simplify process make best use this technology for suitable patients...
The purpose of this study was to investigate the impact a dose control system (DCS) servo installed on two fully commissioned TomoTherapy Hi·Art II treatment units. This is designed actively adjust machine parameters output variation tomotherapy unit within nominal rate. Machine output, rate, and patient‐specific quality assurance data were retrospectively analyzed for periods prior following installation system. Quality tests indicate reduction in rotational during procedure, where...
The aim of this study was to investigate if definitive Adaptive Split Course Radiotherapy (ASCRT) significant skin cancers could be done safely and successfully in select patients for whom a continuous course fractionated treatment may have been too arduous.Two with three were treated ASCRT.The first case involved large Basal Cell Carcinoma (BCC) on 91year-old woman's right temple.The second two cutaneous Squamous Carcinomas (SCC), lesion the left anterior shin smaller 92year-old woman...
Locally advanced skin cancer of the nose is problematic especially when all nasal needs treatment as in case field cancerisation SFC Surgery considered gold standard but involves tissue loss which may impact function and cosmesis In patients who are not good surgical candidates definitive radiotherapy RT can be used Traditional modalities for such brachytherapy superficial x ray or electrons have quality assurance issues difficult to conform target volume Volumetric modulated arc therapy...
Abstract The introduction of magnetic resonance (MR) linear accelerators (MR‐Linacs) into radiotherapy departments has increased in recent years owing to its unique advantages including the ability deliver online adaptive radiotherapy. However, most radiation oncology professionals are not accustomed working with MR technology. integration an MR‐Linac routine practice requires many considerations safety, image acquisition and optimisation, interpretation strategies. This article provides...
Abstract Background In the Unity MR linac (Elekta AB, Stockholm, Sweden), radiation beam traverses cryostat and coil support structure. The resulting attenuation must be considered for output calibration its variation with gantry angle characterized in treatment planning system (TPS). Purpose aim of this work was to investigate impact a change transmission characterization (CTC) curve, due helium level modification, on clinical plan dosimetry report experience CTC curve update. Methods...
Abstract Motion management has become an integral part of radiation therapy. Multiple approaches to motion have been reported in the literature. To allow sharing experiences on current practice and emerging technology, University Sydney New South Wales/Australian Capital Territory branch Australasian College Physical Scientists Engineers Medicine (ACPSEM) held a two-day workshop. inform workshop program, participants were invited complete survey prior use techniques their opinion...
Introduction: Whole brain radiotherapy (WBRT) is a common palliative treatment for metastases from solid tumours. Traditionally, it given with opposed lateral fields causing total alopecia as hair-bearing scalp skin receives the full dose. Volumetric modulated arc therapy (VMAT) can deliver WBRT simultaneous integrated boost (SIB) to larger whilst minimising dose critical structures such hippocampus. This feasibility study aimed test hypothesis that reduced using VMAT hair-sparing protocol...
The traditional use of two-dimensional geometric prescription points in intracavitary brachytherapy planning for locally advanced cervical cancer is increasingly being replaced by three-dimensional (3D) planning. This study aimed to directly compare the two methods validate that CT provides superior dosimetry both tumour and organs at risk (OARs) our department.The data 10 patients with was audited. For each dataset, new plans were created, comparing conventional American Brachytherapy...
Psoriasis vulgaris is a chronic benign disease of the whole thickness epidermis with symptomatic plaque formation impacting quality life. Relatively low doses fractionated radiotherapy (RT) have been used in past to total dose four six Gray (Gy). We present case an older male seven recalcitrant plaques each treated same prescribed RT. Superficial (SXRT) 100kV beam from Xstrahl 300 machine 20 Gy 10 fractions (#s) at five #s per week was for areas - on scalp and one elbow. At months post...