Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Chihray, Liu"'
Publikováno v:
Physics in medicine and biology. 68(1)
Objective. Deep-learning (DL)-based dose engines have been developed to alleviate the intrinsic compromise between the calculation accuracy and efficiency of the traditional dose calculation algorithms. However, current DL-based engines typically pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6358d0a6b443b299d6f0e3b07b1149c
https://pubmed.ncbi.nlm.nih.gov/36533689
https://pubmed.ncbi.nlm.nih.gov/36533689
Publikováno v:
Medical physicsREFERENCES. 49(6)
Most commercially available treatment planning systems (TPSs) approximate the continuous delivery of volumetric modulated arc therapy (VMAT) plans with a series of discretized static beams for treatment planning, which can make VMAT dose computation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a079f1e0f3342d9ae946be0d7d84e75b
https://pubmed.ncbi.nlm.nih.gov/35355285
https://pubmed.ncbi.nlm.nih.gov/35355285
Autor:
Guanghua Yan, Jacqueline M. Andreozzi, Jonathan G. Li, Chihray Liu, Nicholas J. Potter, Karl Mund
Publikováno v:
Medical Physics. 47:4711-4720
Purpose Despite being the standard metric in patient-specific quality assurance (QA) for intensity-modulated radiotherapy (IMRT), gamma analysis has two shortcomings: (a) it lacks sensitivity to small but clinically relevant errors (b) it does not pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe70ba6ba2a0dcdaa9b4a93c85e801f8
https://doi.org/10.1002/mp.14416
https://doi.org/10.1002/mp.14416
Autor:
Guanghua Yan, Pingfang Tsai, Darren Kahler, Chihray Liu, Nicholas J. Potter, Ying Chao Hung, Jonathan G. Li, Bo Lu, Ji-Yeon Park
Publikováno v:
Medical Physics. 47:5077-5089
Purpose Directly extracting the respiratory phase pattern of the tumor using cone-beam computed tomography (CBCT) projections is challenging due to the poor tumor visibility caused by the obstruction of multiple anatomic structures on the beam's eye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::785322df6b96ac327f71a07dac960735
https://doi.org/10.1002/mp.14298
https://doi.org/10.1002/mp.14298
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose The authors have previously shown the feasibility of using an artificial neural network (ANN) to eliminate the volume average effect (VAE) of scanning ionization chambers (ICs). The purpose of this work was to evaluate the method when applied
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6249b4a727e0868d69b361a47ec01f19
https://doi.org/10.1002/acm2.12865
https://doi.org/10.1002/acm2.12865
Autor:
Guanghua Yan, Jonathan G. Li, Nicholas J. Potter, Bo Lu, Haitham N. Alahmad, Chihray Liu, Hongcheng Liu, Darren Kahler
Publikováno v:
Journal of Applied Clinical Medical Physics
Flattening filter free (FFF) linear accelerators produce a fluence distribution that is forward peaked. Various dosimetric benefits, such as increased dose rate, reduced leakage and out of field dose has led to the growth of FFF technology in the cli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::732994ac4e4c269e2e2152ccb33ac0ad
https://doi.org/10.1002/acm2.12837
https://doi.org/10.1002/acm2.12837
Autor:
Haitham N. Alahmad, Chihray Liu, Guanghua Yan, Bo Lu, Jonathan G. Li, Ji-Yeon Park, Nicholas J. Potter
Publikováno v:
Medical Dosimetry. 45:197-201
The continuous delivery of volumetric modulated arc therapy (VMAT) plans is usually approximated by discrete apertures at evenly-spaced gantry angles for dose calculation purposes. This approximation can potentially lead to large dose calculation err
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44a7f8a151200e86af3efcd45fac5f3f
https://doi.org/10.1016/j.meddos.2019.11.001
https://doi.org/10.1016/j.meddos.2019.11.001
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose The use of the ionization chamber array ICProfiler (ICP) is limited by its relatively poor detector spatial resolution and the inherent volume averaging effect (VAE). The purpose of this work is to study the feasibility of reconstructing VAE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bff9fc837362d0fa3a07750167cedffc
https://pubmed.ncbi.nlm.nih.gov/34486800
https://pubmed.ncbi.nlm.nih.gov/34486800
Publikováno v:
Journal of Applied Clinical Medical Physics
Purpose Traditionally, the treatment couch coordinates (TCCs) for patients undergoing radiotherapy can only be determined at the time of treatment, placing pressure on the treating therapists and leaving several pathways for errors such as wrong‐si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d223ed8ce2e178e4df93606ee3e4462a
http://europepmc.org/articles/PMC6964758
http://europepmc.org/articles/PMC6964758
Autor:
B. Arjomandy, Eric E. Klein, Fang-Fang Yin, Todd Holmes, Jimmy Jones, Sean Dresser, Francisco Aguirre, J Hanley, Ryan T. Flynn, William E. Simon, John E. Bayouth, Chihray Liu, Daniel Letourneau, Lijun Ma
Publikováno v:
Medical physicsREFERENCES. 48(10)
The charges on this task group (TG) were as follows: (a) provide specific procedural guidelines for performing the tests recommended in TG 142; (b) provide estimate of the range of time, appropriate personnel, and qualifications necessary to complete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce4cc01f793b7f9e454da871e6b453ac
https://pubmed.ncbi.nlm.nih.gov/34036590
https://pubmed.ncbi.nlm.nih.gov/34036590