Publications by authors named "Cem Altunbas"

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A pilot study evaluating 2D antiscatter grid based scatter suppression for quantitative cone beam CT in radiotherapy.
Farhang Bayat, Ryan Sabounchi, Uttam Pyakurel, Junxiao Hu, Roy Bliley, Cem Altunbas

Radiother Oncol· January 2026

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Improving Hounsfield Unit accuracy in dental CBCT through the integration of 2D anti-scatter grid.
Ryan Sabounchi, Uttam Pyakurel, Farhang Bayat, Mohamed Eldib, Bahadir Ozus, Cem Altunbas

Oral Radiol· October 2025

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Evaluating dosimetric parameters with a plastic scintillator for megavoltage photon beam quality assurance.
Gregory Penoncello, Bernard L Jones, David A P Dunkerley, Adam Mahl, Moyed Miften, Cem Altunbas

J Appl Clin Med Phys· October 2025

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Effect of a prototype 2-dimensional antiscatter grid on image quality obtained with a dental cone-beam computed tomography scanner.
Boyuan Li, Villeseveri Somerkivi, Farhang Bayat, Carolyn Huynh, Cem Altunbas

Imaging Sci Dent· March 2025

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Investigation of 2D anti-scatter grid implementation in a gantry-mounted cone beam computed tomography system for proton therapy.
Uttam Pyakurel, Yawei Zhang, Ryan Sabounchi, Farhang Bayat, Sébastien Brousmiche, Cem Altunbas

Phys Imaging Radiat Oncol· January 2025

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Evaluation of a compact cone beam CT concept with high image fidelity for point-of-care brain imaging.
Uttam Pyakurel, Ryan Sabounchi, Mohamed Eldib, Farhang Bayat, Hien Phan, Cem Altunbas

Sci Rep· November 2024

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2D antiscatter grid and scatter sampling based CBCT method for online dose calculations during CBCT guided radiation therapy of pelvis.
Farhang Bayat, Brian Miller, Yeonok Park, Zhelin Yu, Timur Alexeev, Cem Altunbas

Med Phys· April 2024

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Effect of scatter suppression with 2D antiscatter grids in photon counting compact CBCT.
Ryan Sabounchi, Uttam Pyakurel, Farhang Bayat, Mohamed Eldib, Cem Altunbas

Proc SPIE Int Soc Opt Eng· February 2024

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Feasibility of dual-energy CBCT material decomposition in the human torso with 2D anti-scatter grids and grid-based scatter sampling.
Cem Altunbas

Med Phys· January 2024

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A quantitative CBCT pipeline based on 2D antiscatter grid and grid-based scatter sampling for image-guided radiation therapy.
Farhang Bayat, Dan Ruan, Moyed Miften, Cem Altunbas

Med Phys· December 2023

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A simulation study to evaluate the effect of 2D antiscatter grid primary transmission on flat panel detector based CBCT image quality.
Mohamed Elsayed Eldib, Farhang Bayat, Moyed Miften, Cem Altunbas

Biomed Phys Eng Express· October 2023

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A 2D antiscatter grid and scatter sampling based CBCT method for online dose calculations during CBCT guided radiation therapy of pelvis.
Farhang Bayat, Brian Miller, Yeonok Park, Zhelin Yu, Timur Alexeev, Cem Altunbas

ArXiv· October 2023

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2D antiscatter grid and scatter sampling based CBCT pipeline for image guided radiation therapy.
Farhang Bayat, Dan Ruan, Moyed Miften, Cem Altunbas

ArXiv· August 2023

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Concurrent kilovoltage CBCT imaging and megavoltage beam delivery: suppression of cross-scatter with 2D antiscatter grids and grid-based scatter sampling.
Farhang Bayat, Mohamed Elsayed Eldib, Brian Kavanagh, Moyed Miften, Cem Altunbas

Phys Med Biol· August 2022

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Megavoltage cross-scatter rejection and correction using 2D antiscatter grids in kilovoltage CBCT imaging.
Farhang Bayat, Mohamed Elsayed Eldib, Cem Altunbas

Proc SPIE Int Soc Opt Eng· April 2022

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Evaluation of scatter rejection and correction performance of 2D antiscatter grids in cone beam computed tomography.
Yeonok Park, Timur Alexeev, Brian Miller, Moyed Miften, Cem Altunbas

Med Phys· April 2021

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A unified scatter rejection and correction method for cone beam computed tomography.
Cem Altunbas, Yeonok Park, Zhelin Yu, Anant Gopal

Med Phys· March 2021

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Simulation of x-ray-induced acoustic imaging for absolute dosimetry: Accuracy of image reconstruction methods.
Farnoush Forghani, Adam Mahl, Taylor J Patton, Bernard L Jones, Mark A Borden, Cem Altunbas

Med Phys· March 2020

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Simultaneous scatter rejection and correction method using 2D antiscatter grids for CBCT.
Zhelin Yu, Yeonok Park, Cem Altunbas

Proc SPIE Int Soc Opt Eng· February 2020

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Effect of grid geometry on the transmission properties of 2D grids for flat detectors in CBCT.
Cem Altunbas, Timur Alexeev, Moyed Miften, Brian Kavanagh

Phys Med Biol· November 2019

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A novel total variation based ring artifact suppression method for CBCT imaging with two-dimensional antiscatter grids.
Timur Alexeev, Brian Kavanagh, Moyed Miften, Cem Altunbas

Med Phys· May 2019

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Two-dimensional antiscatter grid: A novel scatter rejection device for Cone-beam computed tomography.
Timur Alexeev, Brian Kavanagh, Moyed Miften, Cem Altunbas

Med Phys· February 2018

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Transmission characteristics of a two dimensional antiscatter grid prototype for CBCT.
Cem Altunbas, Brian Kavanagh, Timur Alexeev, Moyed Miften

Med Phys· August 2017

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Should we customize PTV expansions for BMI? Daily cone beam computerized tomography to assess organ motion in postoperative endometrial and cervical cancer patients.
Arya Amini, Peter E DeWitt, Yevgeniy Vinogradskiy, Chad G Rusthoven, Cem Altunbas

Rep Pract Oncol Radiother· September 2016

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Radiation dose uncertainty and correction for a mouse orthotopic and xenograft irradiation model.
Gregory N Gan, Cem Altunbas, John J Morton, Justin Eagles, Jennifer Backus

Int J Radiat Biol· May 2016

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