Rhys Fitzgerald

Radiation Oncology Centres · Redlands/Greenslopes

Introduction: Stereotactic radiation therapy is a highly specialised technique which requires careful and structured implementation. As part of a national stereotactic programme implementation, protocols were developed and a national stereotactic chart round was formed, which strongly recommended attendance and presentation of all cases before tre...

Aim The objective of the study was to compare three noncoplanar delivery techniques (three-dimensional conformal radiation therapy [3DCRT], intensity-modulated radiation therapy [IMRT], and volumetric-modulated arc therapy [VMAT]) for the delivery of lung stereotactic ablative radiation therapy to peripheral lung tumours. Methods and Materials The...

Objectives: The prescription isodose value chosen for lung SABR plays an important part in plan quality. Finding the optimal prescription isodose for individual patients can be arduous. Therefore this study was designed to investigate a new method for prospectively predicting the prescription isodose value used in lung stereotactic ablative radiati...

Objectives: To compare three non-coplanar delivery techniques (3-dimensional conformal radiation therapy (3DCRT), intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT)) for the delivery of lung stereotactic ablative radiation therapy (SABR) to peripheral lung tumours. Methods: Institutional ethical clearance was g...

Objectives: Hippocampal avoidance whole brain radiation therapy (HA-WBRT) is a novel radiation therapy delivery technique used to mitigate neurocognitive impairment for those patients receiving whole brain radiation therapy. To help improve the quality of life for patients following treatment, this technique was investigated for implementation in o...

Introduction The purpose of this study was to investigate coplanar and non-coplanar volumetric modulated arc therapy (VMAT) delivery techniques for stereotactic ablative radiation therapy (SABR) to the lung. Methods For ten patients who had already completed a course of radiation therapy for early stage lung cancer, three new SABR treatment plans...

Introduction: The aim of this study was to compare various coplanar and non-coplanar 3-dimensional conformal radiation therapy (3DCRT) beam arrangements for the delivery of stereotactic ablative radiation therapy (SABR) to patients with early stage lung cancer, based on the dosimetric criteria from the Radiation Therapy Oncology Group (RTOG) 1021...

IntroductionThe magnitude of intra- and inter-fractional variation in the set up of breast cancer patients treated with tangential megavoltage photon beams was investigated using an electronic portal imaging device (EPID).Methods Daily cine-EPID images were captured during delivery of the tangential fields for ten breast cancer patients treated in...

IntroductionCutaneous squamous cell carcinoma with large nerve perineural (LNPN) infiltration of the base of skull is a radiotherapeutic challenge given the complex target volumes to nearby organs at risk (OAR). A comparative planning study was undertaken to evaluate dosimetric differences between volumetric modulated arc therapy (VMAT) versus inte...