Browsing by author "Pollock, S"
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Audiovisual Biofeedback Improves Cine-Magnetic Resonance Imaging Measured Lung Tumor Motion Consistency.
Lee, D; Greer, PB; Ludbrook, J; Arm, J; Hunter, P; Pollock, S; Makhija, K; O'Brien, RT; Kim, T; Keall, PPublished 2016-03-01PURPOSE: To assess the impact of an audiovisual (AV) biofeedback on intra- and interfraction tumor motion for lung cancer patients. METHODS AND MATERIALS: Lung tumor motion was investigated in 9 lung cancer patients who ...Open AccessArticle -
Breathing guidance in radiation oncology and radiology: A systematic review of patient and healthy volunteer studies.
Pollock, S; Keall, PPublished 2015-09-01PURPOSE: The advent of image-guided radiation therapy has led to dramatic improvements in the accuracy of treatment delivery in radiotherapy. Such advancements have highlighted the deleterious impact tumor motion can ...Open AccessArticle -
Dynamic keyhole: a novel method to improve MR images in the presence of respiratory motion for real-time MRI
Lee, D; Pollock, S; Whelan, B; Keall, P; Kim, TPublished 2014-07-01PURPOSE: In this work, the authors present a novel magnetic resonance imaging reconstruction method to improve the quality of MR images in the presence of respiratory motion for real-time thoracic image-guided radiotherapy. ...Open AccessArticle -
The impact of audiovisual biofeedback on 4D functional and anatomic imaging: Results of a lung cancer pilot study.
Yang, J; Yamamoto, T; Pollock, S; Berger, J; Diehn, M; Graves, EE; Loo, BW Jr; Keall, PPublished 2016-08-01BACKGROUND AND PURPOSE: The impact of audiovisual (AV) biofeedback on four dimensional (4D) positron emission tomography (PET) and 4D computed tomography (CT) image quality was investigated in a prospective clinical trial ...Open AccessArticle -
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, PPublished 2018-02-01INTRODUCTION: 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 AccessArticle -
The internal-external respiratory motion correlation is unaffected by audiovisual biofeedback.
Steel, H; Pollock, S; Lee, D; Keall, P; Kim, TPublished 2014-03-01This study evaluated if an audiovisual (AV) biofeedback causes variation in the level of external and internal correlation due to its interactive intervention in natural breathing. The internal (diaphragm) and external ...Open AccessArticle -
Quantifying the accuracy of the tumor motion and area as a function of acceleration factor for the simulation of the dynamic keyhole magnetic resonance imaging method
Lee, D; Greer, P; Pollock, S; Kim, T; Keall, PPublished 2016-05-01PURPOSE: The dynamic keyhole is a new MR image reconstruction method for thoracic and abdominal MR imaging. To date, this method has not been investigated with cancer patient magnetic resonance imaging (MRI) data. The ...Open AccessArticle
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