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Publication year
2018 (17)
Type
Article (17)
Authors Keall, P (17)O'Brien, R (8)Caillet, V (5)Nguyen, DT (5)Booth, JT (4)Eade, T (4)Feain, I (3)Lee, D (3)Paganelli, C (3)Poulsen, PR (3)View moreSubjects
029903 - Medical Physics (17)
Image-guided radiotherapy (7)motion management (6)real-time imaging (3)Lung cancer (2)MRI (2)MRI-linac (2)tumor motion (2)Atrial Fibrillation (1)Fixed beam radiotherapy (1)View moreHas file(s)
Yes (17)

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Impact of audiovisual biofeedback on interfraction respiratory motion reproducibility in liver cancer stereotactic body radiotherapy. 

Pollock, S; Tse, R; Martin, D; McLean, L; Pham, M; Tait, D; Estoesta, R; Whittington, G; Turley, J; Kearney, C; Cho, G; Hill, R; Pickard, S; Aston, P; Makhija, K; O'Brien, R; Keall, P
Published 2018-02-01
INTRODUCTION: Irregular breathing motion exacerbates uncertainties throughout a course of radiation therapy. Breathing guidance has demonstrated to improve breathing motion consistency. This was the first clinical ...
Open Access
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Imaging performance of a dedicated radiation transparent RF coil on a 1.0 Tesla inline MRI-linac. 

Liney, GP; Dong, B; Weber, E; Rai, R; Destruel, A; Garcia-Alvarez, R; Manton, DJ; Jelen, U; Zhang, K; Barton, M; Keall, P; Crozier, S
Published 2018-06-01
This work describes the first imaging studies on a 1.0 Tesla inline MRI-Linac using a dedicated transmit/receive RF body coil that has been designed to be completely radio transparent and provide optimum imaging performance ...
Open Access
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An in silico performance characterization of respiratory motion guided 4DCT for high-quality low-dose lung cancer imaging. 

Martin, Spencer; O'Brien, Ricky; Hofmann, Christian; Keall, P; Kipritidis, John
Published 2018-07-01
This work aims to characterize the performance of an improved 4DCT technique aiming to overcome irregular breathing-related image artifacts. To address this, we have developed respiratory motion guided (RMG) 4DCT, which ...
Open Access
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Image-based retrospective 4D MRI in external beam radiotherapy: A comparative study with a digital phantom. 

Paganelli, C; Kipritidis, J; Lee, D; Baroni, G; Keall, P; Riboldi, M
Published 2018-07-01
PURPOSE: Several image-based retrospective sorting methods of 4D magnetic resonance imaging (4D MRI) have been proposed for respiratory motion reconstruction in external beam radiotherapy. However, the optimal strategy for ...
Open Access
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Potential improvements of lung and prostate MLC tracking investigated by treatment simulations. 

Toftegaard, J; Keall, P; O'Brien, R; Ruan, D; Ernst, F; Homma, N; Ichiji, K; Poulsen, PR
Published 2018-05-01
PURPOSE/OBJECTIVES: Intrafraction tumor motion during external radiotherapy is a challenge for the treatment accuracy. A novel technique to mitigate the impact of tumor motion is real-time adaptation of the multileaf ...
Open Access
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Feasibility study on 3D image reconstruction from 2D orthogonal cine-MRI for MRI-guided radiotherapy. 

Paganelli, C; Lee, D; Kipritidis, J; Whelan, B; Greer, PB; Baroni, G; Riboldi, M; Keall, P
Published 2018-06-01
INTRODUCTION: In-room MRI is a promising image guidance strategy in external beam radiotherapy to acquire volumetric information for moving targets. However, limitations in spatio-temporal resolution led several authors ...
Open Access
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A CBCT study of the gravity-induced movement in rotating rabbits. 

Barber, J; Shieh, CC; Counter, W; Sykes, J; Bennett, P; Ahern, V; Corde, S; Heng, SM; White, P; Jackson, M; Liu, P; Keall, P; Feain, I
Published 2018-05-01
Fixed-beam radiotherapy systems with subjects rotating about a longitudinal (horizontal) axis are subject to gravity-induced motion. Limited reports on the degree of this motion, and any deformation, has been reported ...
Open Access
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Investigating multi-leaf collimator tracking in stereotactic arrhythmic radioablation (STAR) treatments for atrial fibrillation. 

Lydiard, S; Caillet, V; Ipsen, S; O'Brien, R; Blanck, O; Poulsen, PR; Booth, J; Keall, P
Published 2018-09-01
Stereotactic arrhythmia radioablation (STAR) is an emerging treatment option for atrial fibrillation (AF). However, it faces possibly the most challenging motion compensation scenario: both respiratory and cardiac motion. ...
Open Access
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Technical Note: Real-time image-guided adaptive radiotherapy of a rigid target for a prototype fixed beam radiotherapy system. 

Liu, P; Nguyen, DT; Feain, I; O'Brien, R; Keall, P; Booth, JT
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
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An augmented correlation framework for the estimation of tumour translational and rotational motion during external beam radiotherapy treatments using intermittent monoscopic x-ray imaging and an external respiratory signal. 

Nguyen, DT; Booth, JT; Caillet, V; Hardcastle, N; Briggs, A; Hadad, C; Eade, T; O'Brien, R; Keall, P
Published 2018-10-01
Increasing evidence shows that intrafraction tumour motion monitoring must include both six degrees of freedom (6DoF): 3D translations and 3D rotations. Existing real-time algorithms for 6DoF target motion estimation require ...
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