Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Christina E, Agnew"'
Autor:
Jeremy L Hughes, Martin A Ebert, Conor K McGarry, Christina E Agnew, Mahsheed Sabet, Pejman Rowshanfarzad
Publikováno v:
Journal of Medical Physics, Vol 46, Iss 4, Pp 300-307 (2021)
Background: Quality assurance of linear accelerators (linacs) is an important part of ensuring accurate radiotherapy treatment deliveries. The aim of this study is to investigate the role of gravity on the positional accuracy of multileaf collimator
Externí odkaz:
https://doaj.org/article/cb39d1cb89304414ad9a640b085b99bb
Publikováno v:
Radiation Oncology, Vol 14, Iss 1, Pp 1-7 (2019)
Abstract Background Patients treated with radiotherapy for head and neck (H&N) cancer often experience anatomical changes. The potential compromises to Planning Target Volume (PTV) coverage or Organ at Risk (OAR) sparing has prompted the use of adapt
Externí odkaz:
https://doaj.org/article/c2befe226674417b9c84c23c960cdb52
Publikováno v:
Physica Medica. 85:1-7
The persistent use of MLCs through VMAT and IMRT is causing additional wear and tear on these mechanical parts, leading to an increase in MLC interlocks, breakdowns and failures. This study investigates the effect of an MLC clean and service procedur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5422c1c4395722f26fb413e5c87f24a3
https://doi.org/10.1016/j.ejmp.2021.04.012
https://doi.org/10.1016/j.ejmp.2021.04.012
Publikováno v:
Journal of Radiotherapy in Practice. 20:248-256
Purpose:The aim of this study was to optimise patient dose and image quality of Varian TrueBeam cone beam computed tomography (CBCT) pelvis, thorax and head and neck (H&N) images based on patient size.Methods:An elliptical phantom of small, medium an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c128bcdfcd7e8170bd754c151042786b
https://doi.org/10.1017/s1460396920000618
https://doi.org/10.1017/s1460396920000618
Publikováno v:
Physica Medica. 104:S166-S167
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ede8f00f9caab6f0885ad820c59ad15c
https://doi.org/10.1016/s1120-1797(22)02519-4
https://doi.org/10.1016/s1120-1797(22)02519-4
Publikováno v:
Belshaw, L, Agnew, C E, Irvine, D M, Rooney, K & McGarry, C 2019, ' Adaptive radiotherapy for head and neck cancer reduces the requirement for rescans during treatment due to spinal cord dose ', Radiation Oncology . https://doi.org/10.1186/s13014-019-1400-3
Radiation Oncology (London, England)
Belshaw, L, Agnew, C E, Irvine, D M, Rooney, K P & McGarry, C K 2019, ' Adaptive radiotherapy for head and neck cancer reduces the requirement for rescans during treatment due to spinal cord dose ', Radiation oncology (London, England), vol. 14, 189 . https://doi.org/10.1186/s13014-019-1400-3
Radiation Oncology, Vol 14, Iss 1, Pp 1-7 (2019)
Radiation Oncology (London, England)
Belshaw, L, Agnew, C E, Irvine, D M, Rooney, K P & McGarry, C K 2019, ' Adaptive radiotherapy for head and neck cancer reduces the requirement for rescans during treatment due to spinal cord dose ', Radiation oncology (London, England), vol. 14, 189 . https://doi.org/10.1186/s13014-019-1400-3
Radiation Oncology, Vol 14, Iss 1, Pp 1-7 (2019)
Background Patients treated with radiotherapy for head and neck (H&N) cancer often experience anatomical changes. The potential compromises to Planning Target Volume (PTV) coverage or Organ at Risk (OAR) sparing has prompted the use of adaptive radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a87153ee739c77e12032a524ee6b26c6
https://pure.qub.ac.uk/en/publications/7001f328-f9c3-4c88-91d5-ed2e3ee33ea5
https://pure.qub.ac.uk/en/publications/7001f328-f9c3-4c88-91d5-ed2e3ee33ea5
Autor:
Denise M. Irvine, Raymond B. King, V. Giacometti, Conor K. McGarry, Alan R. Hounsell, Suneil Jain, Christina E. Agnew
Publikováno v:
Giacometti, V, King, R B, Agnew, C E, Irvine, D M, Jain, S, Hounsell, A R & McGarry, C K 2019, ' An evaluation of techniques for dose calculation on cone beam computed tomography ', British Journal of Radiology, vol. 92, no. 1096, 20180383 . https://doi.org/10.1259/bjr.20180383
OBJECTIVE:: To assess the accuracy and efficiency of four different techniques, thus determining the optimum method for recalculating dose on cone beam CT (CBCT) images acquired during radiotherapy treatments.METHODS:: Four established techniques wer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b70adaf857774072a4c2803091baf34
https://pure.qub.ac.uk/en/publications/0a61b110-1366-460b-82a2-9c7ede47f9aa
https://pure.qub.ac.uk/en/publications/0a61b110-1366-460b-82a2-9c7ede47f9aa
Publikováno v:
Physica Medica. 84:305
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7207528a957812afa09832348d703303
https://doi.org/10.1016/j.ejmp.2021.01.063
https://doi.org/10.1016/j.ejmp.2021.01.063
Publikováno v:
Radiotherapy and Oncology. 152:S977
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c00149ed836c117a1071a6582ec0cb06
https://doi.org/10.1016/s0167-8140(21)01774-6
https://doi.org/10.1016/s0167-8140(21)01774-6
Publikováno v:
Ultrasound in Medicine & Biology. 41:1320-1327
Wavelet entropy assesses the degree of order or disorder in signals and presents this complex information in a simple metric. Relative wavelet entropy assesses the similarity between the spectral distributions of two signals, again in a simple metric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b896594b786da93e39d3a5cde9da7d64
https://doi.org/10.1016/j.ultrasmedbio.2014.12.013
https://doi.org/10.1016/j.ultrasmedbio.2014.12.013