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Technical Note: Real-time image-guided adaptive radiotherapy of a rigid target for a prototype fixed beam radiotherapy system.
Published 2018-10-01
PURPOSE: Fixed beam radiotherapy systems utilize couch movement and rotation instead of gantry rotation in order to simplify linear accelerator design. We investigate the ability to deliver fixed beam treatments with the ...
Open Access
Article
An interdimensional correlation framework for real-time estimation of six degree of freedom target motion using a single x-ray imager during radiotherapy.
Published 2017-12-01
Increasing evidence suggests that intrafraction tumour motion monitoring needs to include both 3D translations and 3D rotations. Presently, methods to estimate the rotation motion require the 3D translation of the target ...
Open Access
Article
Optimizing 4D Cone Beam Computed Tomography Acquisition by Varying the Gantry Velocity and Projection Time Interval
Published 2013-03-01
Four Dimensional Cone Beam Computed Tomography (4DCBCT) is an emerging clinical image guidance strategy for tumour sites affected by respiratory motion. In current generation 4DCBCT techniques, both the gantry rotation ...
Open Access
Article
Optimizing 4DCBCT Projection Allocation to Respiratory Bins
Published 2014-10-01
Four dimensional cone beam computed tomography (4DCBCT) is an emerging image guidance strategy used in radiotherapy where projections acquired during a scan are sorted into respiratory bins based on the respiratory phase ...
Open Access
Article
Respiratory Motion Guided Four Dimensional Cone Beam Computed Tomography: Encompassing Irregular Breathing
Published 2014-02-01
Four dimensional cone beam computed tomography (4DCBCT) images su er from angular under sampling and bunching of projections due to a lack of feedback between the respiratory signal and the acquisition system. To address ...
Open Access
Article
The first clinical implementation of real-time image-guided adaptive radiotherapy using a standard linear accelerator.
Published 2018-04-01
PURPOSE: Until now, real-time image guided adaptive radiation therapy (IGART) has been the domain of dedicated cancer radiotherapy systems. The purpose of this study was to clinically implement and investigate real-time ...
Open Access
Article
Development and commissioning of a full-size prototype fixed-beam radiotherapy system with horizontal patient rotation.
Published 2019-03-01
PURPOSE: Compared to conventional linacs with rotating gantries, a fixed-beam radiotherapy system could be smaller, more robust and more cost-effective. In this work, we developed and commissioned a prototype x-ray ...
Open Access
Article
Both four-dimensional computed tomography and four-dimensional cone beam computed tomography under-predict lung target motion during radiotherapy.
Published 2019-06-01
BACKGROUND AND PURPOSE: To test the hypothesis that 4DCT and 4DCBCT-measured target motion ranges predict target motion ranges during lung cancer SABR. MATERIALS AND METHODS: Ten lung SABR patients were implanted with ...
Open Access
Article
A six-degree-of-freedom robotic motion system for quality assurance of real-time image-guided radiotherapy.
Published 2019-03-21
In this study we develop and characterise a six degree-of-freedom (6 DoF) robotic motion system for quality assurance of real-time image-guided radiotherapy techniques. The system consists of a commercially available robotic ...
Open Access
Article
Technical Note: In silico and experimental evaluation of two leaf-fitting algorithms for MLC tracking based on exposure error and plan complexity.
Published 2019-04-01
PURPOSE: Multileaf collimator (MLC) tracking is being clinically pioneered to continuously compensate for thoracic and pelvic motion during radiotherapy. The purpose of this work was to characterize the performance of two ...
Open Access
Article