Assessment of the accuracy and stability of frameless gamma knife radiosurgery
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DOI: 10.1002/acm2.12365
Abstract: Abstract The aim of this study was to assess the accuracy and stability of frameless gamma knife radiosurgery (GKRS). The accuracies of the radiation isocenter and patient couch movement were evaluated by film dosimetry with… read more here.
Keywords: accuracy; frameless; gamma knife; cbct ... See more keywords
A feasibility study of intrafractional tumor motion estimation based on 4D‐CBCT using diaphragm as surrogate
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.12410
Abstract: Abstract Purpose To investigate the intrafractional stability of the motion relationship between the diaphragm and tumor, as well as the feasibility of using diaphragm motion to estimate lung tumor motion. Methods Eighty‐five paired (pre and… read more here.
Keywords: motion; image; estimation; position ... See more keywords
Quantifying the accuracy of deformable image registration for cone‐beam computed tomography with a physical phantom
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.12717
Abstract: Abstract Purpose Kilo‐voltage cone‐beam computed tomography (CBCT) is widely used for patient alignment, contour propagation, and adaptive treatment planning in radiation therapy. In this study, we evaluated the accuracy of deformable image registration (DIR) for… read more here.
Keywords: image; phantom; image registration; accuracy ... See more keywords
How does CBCT reconstruction algorithm impact on deformably mapped targets and accumulated dose distributions?
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13328
Abstract: Abstract Purpose We performed quantitative analysis of differences in deformable image registration (DIR) and deformable dose accumulation (DDA) computed on CBCT datasets reconstructed using the standard (Feldkamp‐Davis‐Kress: FDK_CBCT) and a novel iterative (iterative_CBCT) CBCT reconstruction… read more here.
Keywords: dose distributions; fdk cbct; cbct reconstruction; cbct ... See more keywords
MVCT versus kV‐CBCT for targets subject to respiratory motion: A phantom study
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13356
Abstract: Abstract The use of kilovoltage cone‐beam computed tomography (kV‐CBCT) or megavoltage computed tomography (MVCT) for image guidance prior to lung stereotactic body radiation therapy (SBRT) is common clinical practice. We demonstrate that under equivalent respiratory… read more here.
Keywords: motion; mvct; target; cbct ... See more keywords
Comparison of an in‐house hybrid DIR method to NiftyReg on CBCT and CT images for head and neck cancer
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13540
Abstract: Abstract An in‐house hybrid deformable image registration (DIR) method, which combines free‐form deformation (FFD) and the viscous fluid registration method, is proposed. Its results on the planning computed tomography (CT) and the day 1 treatment… read more here.
Keywords: dir method; house hybrid; method; proposed method ... See more keywords
Assessment of CBCT–based synthetic CT generation accuracy for adaptive radiotherapy planning
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.13737
Abstract: Abstract Purpose Cone‐beam CT (CBCT)–based synthetic CT (sCT) dose calculation has the potential to make the adaptive radiotherapy (ART) pathway more efficient while removing subjectivity. This study assessed four sCT generation methods using 15 head‐and‐neck… read more here.
Keywords: cbct; generation; adaptive radiotherapy; cbct based ... See more keywords
Artifact removal for unpaired thorax CBCT images using a feature fusion residual network and contextual loss.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of applied clinical medical physics"
DOI: 10.1002/acm2.13968
Abstract: BACKGROUND AND OBJECTIVE Cone-beam computed tomography (CBCT) has become a more and more active cutting-edge topic in the international computed tomography (CT) research due to its advantages of fast scanning speed, high ray utilization rate… read more here.
Keywords: cbct images; feature fusion; loss; thorax cbct ... See more keywords
ACR benchmark testing of a novel high‐speed ring‐gantry linac kV‐CBCT system
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.14299
Abstract: Abstract A new generation cone‐beam computed tomography (CBCT) system with new hardware design and advanced image reconstruction algorithms is available for radiation treatment simulation or adaptive radiotherapy (HyperSight CBCT imaging solution, Varian Medical Systems‐a Siemens… read more here.
Keywords: cbct; system; image; image quality ... See more keywords
Image quality characterization of an ultra‐high‐speed kilovoltage cone‐beam computed tomography imaging system on an O‐ring linear accelerator
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Applied Clinical Medical Physics"
DOI: 10.1002/acm2.14337
Abstract: Abstract Purpose The quality of on‐board imaging systems, including cone‐beam computed tomography (CBCT), plays a vital role in image‐guided radiation therapy (IGRT) and adaptive radiotherapy. Recently, there has been an upgrade of the CBCT systems… read more here.
Keywords: quality; cbct; image; computed tomography ... See more keywords
The feasibility of CT simulation‐free adaptive radiation therapy
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DOI: 10.1002/acm2.14438
Abstract: Abstract Background Novel on‐board CBCT allows for improved image quality and Hounsfield unit accuracy. When coupled with online adaptive tools, this may have potential to allow for simulation and treatment to be completed in a… read more here.
Keywords: cbct; treatment; simulation free; radiation therapy ... See more keywords