Publications by authors named "Chihray Liu"

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Evaluation of the system accuracy of frameless stereotactic radiosurgery using a combination of cone beam CT, six degrees of freedom couch, and surface image-guided systems.
Hao-Wen Cheng, Jonathan Li, Sheng-Hsuan Sun, Guanghua Yan, Chihray Liu

J Appl Clin Med Phys· June 2025

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Patient setup variation on Elekta Unity and its impact on adaptive planning.
Maggie Yan, Erika Kollitz, Sheng-Hsuan Sun, Kathryn Hitchcock, Alexandra De Leo, Chihray Liu

J Appl Clin Med Phys· April 2025

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MR-linac MLC positioning QA by digitally stitching dual double-exposed films.
Sheng-Hsuan Sun, Erika Kollitz, Wen-Chih Tseng, Amanda Schwarz, Luke Maloney, Chihray Liu

J Appl Clin Med Phys· July 2024

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Performance assessment of variant UNet-based deep-learning dose engines for MR-Linac-based prostate IMRT plans.
Wenchih Tseng, Hongcheng Liu, Yu Yang, Chihray Liu, Keith Furutani

Phys Med Biol· August 2023

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An ultra-fast deep-learning-based dose engine for prostate VMAT via knowledge distillation framework with limited patient data.
Wenchih Tseng, Hongcheng Liu, Yu Yang, Chihray Liu, Bo Lu

Phys Med Biol· December 2022

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A polar-coordinate-based pencil beam algorithm for VMAT dose computation with high-resolution gantry angle sampling.
Wenchih Tseng, Guanghua Yan, Hongcheng Liu, Darren Kahler, Jonathan Li, Chihray Liu

Med Phys· June 2022

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AAPM Task Group 198 Report: An implementation guide for TG 142 quality assurance of medical accelerators.
Joseph Hanley, Sean Dresser, William Simon, Ryan Flynn, Eric E Klein, Chihray Liu

Med Phys· October 2021

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Reconstruction of volume averaging effect-free continuous photon beam profiles from discrete ionization chamber array measurements using a machine learning technique.
Karl Mund, Luke Maloney, Bo Lu, Jian Wu, Jonathan Li, Chihray Liu

J Appl Clin Med Phys· October 2021

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A sliding-window approach for improved VMAT dose calculation accuracy.
Haitham N Alahmad, Ji-Yeon Park, Nicholas J Potter, Bo Lu, Guanghua Yan, Chihray Liu

Med Dosim· July 2021

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Tumor phase recognition using cone-beam computed tomography projections and external surrogate information.
Pingfang Tsai, Guanghua Yan, Chihray Liu, Ying-Chao Hung, Darren L Kahler

Med Phys· October 2020

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Error detection and classification in patient-specific IMRT QA with dual neural networks.
Nicholas J Potter, Karl Mund, Jacqueline M Andreozzi, Jonathan G Li, Chihray Liu

Med Phys· October 2020

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Evaluation of a neural network-based photon beam profile deconvolution method.
Karl Mund, Jian Wu, Chihray Liu, Guanghua Yan

J Appl Clin Med Phys· June 2020

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Feasibility study of using flattening-filter-free photon beams to deliver conventional flat beams.
Nicholas J Potter, Sharon Lebron, Jonathan G Li, Chihray Liu, Bo Lu

Med Dosim· April 2020

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Beam flatness modulation for a flattening filter free photon beam utilizing a novel direct leaf trajectory optimization model.
Nicholas J Potter, Guanghua Yan, Hongcheng Liu, Haitham Alahmad, Darren L Kahler, Chihray Liu

J Appl Clin Med Phys· March 2020

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A self-checking treatment couch coordinate calculation system in radiotherapy.
Pingfang Tsai, Chihray Liu, Darren L Kahler, Jonathan G Li, Bo Lu

J Appl Clin Med Phys· January 2020

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Routine Adaptive Replanning of p16-Positive Stage N2b Oropharyngeal Cancer: Quality Improvement or Waste of Time?
James H Zhu, Robert J Amdur, Bo Lu, Chihray Liu, Kathryn E Hitchcock

Am J Clin Oncol· December 2018

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Feasibility of photon beam profile deconvolution using a neural network.
Han Liu, Feifei Li, Jiyeon Park, Sharon Lebron, Jian Wu, Chihray Liu

Med Phys· December 2018

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A universal parameterized gradient-based method for photon beam field size determination.
Sharon Lebron, Guanghua Yan, Jonathan Li, Bo Lu, Chihray Liu

Med Phys· November 2017

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Dose-volume toxicity modeling for de-intensified chemo-radiation therapy for HPV-positive oropharynx cancer.
Panayiotis Mavroidis, Alex Price, David Fried, Mark Kostich, Robert Amdur, Chihray Liu

Radiother Oncol· August 2017

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A hybrid phantom Monte Carlo-based method for historical reconstruction of organ doses in patients treated with cobalt-60 for Hodgkin's lymphoma.
Heather Petroccia, Nancy Mendenhall, Chihray Liu, Clifford Hammer, Wesley Culberson

Phys Med Biol· July 2017

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Image-Guided High-Dose Rate Brachytherapy in Cervix Carcinoma Using Balloon Catheter and Belt Immobilization System.
Qiyong Fan, Anamaria R Yeung, Robert Amdur, Richard Helmig, Justin Park, Chihray Liu

Technol Cancer Res Treat· June 2017

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Angular under-sampling effect on VMAT dose calculation: An analysis and a solution strategy.
Ji-Yeon Park, Feifei Li, Jonathan Li, Darren Kahler, Justin C Park, Chihray Liu

Med Phys· June 2017

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Efficient independent planar dose calculation for FFF IMRT QA with a bivariate Gaussian source model.
Feifei Li, Ji-Yeon Park, Brendan Barraclough, Bo Lu, Jonathan Li, Chihray Liu

J Appl Clin Med Phys· March 2017

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Technical Note: Impact of the geometry dependence of the ion chamber detector response function on a convolution-based method to address the volume averaging effect.
Brendan Barraclough, Jonathan G Li, Sharon Lebron, Qiyong Fan, Chihray Liu

Med Phys· May 2016

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Therapy region monitoring based on PET using 478 keV single prompt gamma ray during BNCT: A Monte Carlo simulation study.
Joo-Young Jung, Bo Lu, Do-Kun Yoon, Key Jo Hong, HongSeok Jang, Chihray Liu

Phys Med· April 2016

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