Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ricky T O’Brien"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract This work presents a novel hardware configuration for radiotherapy systems to enable fast 3D X-ray imaging before and during treatment delivery. Standard external beam radiotherapy linear accelerators (linacs) have a single X-ray source and
Externí odkaz:
https://doaj.org/article/aeccbd9d37404bf8be9dfdd4d8d409fc
Autor:
Danny Lee, PhD, Peter B. Greer, PhD, Carminia Lapuz, MBBS, FRANZCR, Joanna Ludbrook, FRANZCR, Perry Hunter, BSc, Jameen Arm, MSc, Sean Pollock, MSc, Kuldeep Makhija, PGDCA, Ricky T. O'Brien, PhD, Taeho Kim, PhD, Paul Keall, PhD
Publikováno v:
Advances in Radiation Oncology, Vol 2, Iss 3, Pp 354-362 (2017)
Purpose: Respiratory variation can increase the variability of tumor position and volume, accounting for larger treatment margins and longer treatment times. Audiovisual biofeedback as a breath-hold technique could be used to improve the reproducibil
Externí odkaz:
https://doaj.org/article/2330c689b1514becb509c33336369ad8
Autor:
Tess Reynolds, Yiqun Q. Ma, Andrew J. Kanawati, Alex Constantinidis, Zoe Williams, Grace Gang, Owen Dillon, Tom Russ, Wenying Wang, Tina Ehtiati, Clifford R. Weiss, Nicholas Theodore, Jeffery H. Siewerdsen, Joseph W. Stayman, Ricky T. O'Brien
Publikováno v:
Investigative Radiology
Objectives: Cone beam computed tomography (CBCT) imaging is becoming an indispensable intraoperative tool; however, the current field of view prevents visualization of long anatomical sites, limiting clinical utility. Here, we demonstrate the longitu
Publikováno v:
Journal of Applied Clinical Medical Physics. 24
Autor:
Benjamin K F Lau, Tess Reynolds, Paul J Keall, Jan-Jakob Sonke, Shalini K Vinod, Owen Dillon, Ricky T O’Brien
Publikováno v:
Physics in Medicine & Biology
This study investigates the dose and time limits of adaptive 4DCBCT acquisitions (adaptive-acquisition) compared with current conventional 4DCBCT acquisition (conventional-acquisition). We investigate adaptive-acquisitions as low as 60 projections (
Publikováno v:
Medical physics. 40(4)
A novel method called respiratory triggered 4D cone-beam computed tomography (RT 4D CBCT) is described whereby imaging dose can be reduced without degrading image quality. RT 4D CBCT utilizes a respiratory signal to trigger projections such that only
Publikováno v:
Physics in Medicine & Biology; Jul2019, Vol. 64 Issue 14, p1-1, 1p
Autor:
Dillon, Owen1 (AUTHOR) owen.dillon@sydney.edu.au, Reynolds, Tess1 (AUTHOR), O'Brien, Ricky T.2 (AUTHOR)
Publikováno v:
Scientific Reports. 6/16/2023, Vol. 13 Issue 1, p1-13. 13p.
Publikováno v:
Physics in Medicine & Biology; Apr2019, Vol. 64 Issue 7, p1-1, 1p
Publikováno v:
Physics in Medicine & Biology; 6/7/2017, Vol. 62 Issue 11, p1-1, 1p