A5025584147- Advanced Radiotherapy Techniques
- Prostate Cancer Diagnosis and Treatment
- Radiation Dose and Imaging
- Radiation Therapy and Dosimetry
- Breast Cancer Treatment Studies
- Medical Imaging Techniques and Applications
- Sarcoma Diagnosis and Treatment
- Colorectal and Anal Carcinomas
- Prostate Cancer Treatment and Research
- Advances in Oncology and Radiotherapy
- Healthcare professionals’ stress and burnout
- Hemodynamic Monitoring and Therapy
- Radiology practices and education
- Management of metastatic bone disease
- Lung Cancer Diagnosis and Treatment
- Digital Radiography and Breast Imaging
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Simulation-Based Education in Healthcare
- Genetic factors in colorectal cancer
- Radiation Effects and Dosimetry
- Health and Medical Research Impacts
- Clinical Reasoning and Diagnostic Skills
- Health Systems, Economic Evaluations, Quality of Life
- Diversity and Career in Medicine
- Machine Learning in Healthcare
Monash University
2015-2025
Ankara University
2015
Peter MacCallum Cancer Centre
2005-2012
Breastscreen Victoria
2009
Abstract Introduction Evidence demonstrates that health care professionals are more prone to burnout than other due the emotionally taxing interactions they have with their patients on a daily basis. The aims of this study were measure occupational levels among sonographers, radiographers and radiologists examine predictors according demographic characteristics. Methods A cross‐sectional online survey was administered in 2010 radiographers, sonographers who members following professional...
To analyze interfraction motion of seminal vesicles (SV), and its relative to rectal bladder filling.SV prostate were contoured on 771 daily computed tomography "on rails" scans from 24 cancer patients undergoing radiotherapy. Random systematic errors for SV centroid displacement measured the centroid. Margins required complete geometric coverage determined using isotropic expansion reference contours. rectum was determined.Systematic error 1.9 mm left-right (LR), 2.9 anterior-posterior (AP)...
During radiotherapy, prostate motion changes over time. Quantifying and accounting for this is essential. This study aimed to assess intra-fraction derive duration-dependent planning margins two treatment techniques.A four-dimension (4D) transperineal ultrasound Clarity® system was used track motion. We analysed 1913 fractions from 60 patients undergoing volumetric-modulated arc therapy (VMAT) the prostate. The mean VMAT duration 3.4 min. Extended monitoring conducted weekly simulate during...
Inconsistent bladder and rectal volumes have been associated with motion uncertainties during prostate radiotherapy. This study investigates the impact of these to determine optimal volume.60 patients from two Asian hospitals were recruited prospectively. 1887 daily cone-beam computed tomography (CBCT) images analysed. Intra-fraction was monitored real-time using a four-dimension transperineal ultrasound (4D TPUS) Clarity® system. The planned volume, adequacy filling, rectum volume on mean...
Background and purposeSignificant deviations between bladder dose planned (DP) accumulated (DA) have been reported in patients receiving radiotherapy for prostate cancer. This study aimed to construct multivariate analysis (MVA) models predict the risk of late genitourinary (GU) toxicity with clinical DP or DA as dose-volume (DV) variables.Materials methodsBladder obtained from 150 were compared DP. MVA built significant DV variables (p<0.05) at univariate analysis. Previously developed...
Abstract An automated dose accumulation and contour propagation workflow using daily cone beam computed tomography (CBCTs) images for prostate cases that require pelvic lymph nodes irradiation (PLNs) was developed. This constructed MIM® software with the intention to provide accurate transformations plans two different isocentres, whereby sequential treatment phases were prescribed. The pre‐processing steps data extractions from plans, CBCTs, determination of couch shift information...
Summary The Tattersall’s Cancer Centre has been performing image‐guided radiation therapy (IGRT) using an in‐room CT on rails since 2003 to verify accurate patient setup position (relative bony anatomy) immediately prior treatment delivery for prostate cancer patients. While the concept of online correction anatomy is well established, use scanner also enables collection and offline analysis soft tissue volumetric data. Although initially IGRT was implemented under a research protocol,...
This study assessed inter- and intra-observer variation in the derivation of setup positioning using four-dimensional (4D) transperineal ultrasound (TPUS). Seven radiation therapists with 4–16 months TPUS clinical experience independently derived position on a single fraction for 10 patients undergoing prostate radiotherapy. For each patient, reference contour was co-registered to image acquired during treatment inter-observer assessed. Intra-observer after two weeks. Inter-observer from...
Anal cancer (AC) is 18 F-FDG-PET avid and has been used to evaluate treatment response several months after chemoradiotherapy. This pilot study aimed assess the utility of semi-automated contouring methods quantitative measures using imaging at early time point 1-month post-chemoradiotherapy.Eleven patients with AC referred for chemoradiotherapy were prospectively enrolled into this study, 10 meeting eligibility requirements. was obtained pre-chemoradiotherapy (TP1), then (TP2), 3-6 (TP3)...
Traditionally radiation therapy planning was taught on campus in labs, or the case of fully online programs, during clinical placements. In 2017, an innovative curriculum developed using a structured, self-directed approach learning and assessment, supported by cloud-based system. This study aimed to explore student experiences practising online, application acquired knowledge skills practice.Student were investigated interpretive phenomenological method. A purposive sample under-graduate...
Our purpose was to investigate interfraction setup error of the immobilization device required implement transperineal ultrasound compared with current, standard device. Patient comfort and radiation therapist (RT) satisfaction were also assessed.Cone beam computed tomography images acquired before 4069 fractions from 111 patients (control group, n = 56; intervention 55) analyzed. The group immobilized using Clarity Immobilization System (CIS), comprising a knee rest autoscan probe kit (n...
Abstract Background Radiation therapy to upper abdominal sites is technically challenging due motion of tumors and surrounding organs resulting from normal respiration. Breath-hold, using an Active Breathing Coordinator one strategy used reduce in these tumor sites. Though widely used, no studies have prospectively compared the different breath-hold techniques (inspiration, deep-inspiration expiration) ABC same patient cohort. Methods Patients planned for radiation are invited participate...
Abstract National standards for patient positioning and treatment instructions radiation therapy of prostate cancer are non‐existent. To maximise daily reproducibility the patient's position, immobilisation stabilisation devices often used. minimise motion, patients may be given to regulate rectal bladder volumes. However, use these provision vary between centres. In May 2003 a survey was sent all chiefs throughout Australia New Zealand requesting information regarding patients. This...
Inter-fraction organ variations cause deviations between planned and delivered doses in patients receiving radiotherapy for prostate cancer. This study compared (DP) vs accumulated (DA) obtained from daily cone-beam computed tomography (CBCT) scans high-risk- cancer with pelvic lymph nodes irradiation. An intensity-based deformable image registration algorithm used to estimate contours DA was validated using geometrical agreement radiation oncologist's propagated contours. Spearman rank...