Chunjoo Park, Ph.D.
Medical Physicist
Radiation Oncology Medical Physicist
Liu C, Beltran CJ, Shen J, Lu B,
Park C
, Yaddanapudi S, Tan J, Furutani KM, Liang X. Investigation of scan path optimization in improving proton pencil beam scanning continuous delivery. Phys Med Biol. 2023 Sep 27; 68 (19) Epub 2023 Sept 27
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Liang X, Beltran CJ, Liu C,
Park C
, Lu B, Yaddanapudi S, Tan J, Furutani KM. Selecting Optimal Proton Pencil Beam Scanning Plan Parameters to Reduce Dose Discrepancy between Discrete Spot Plan and Continuous Scanning: A Proof-of-Concept Study. Cancers (Basel). 2023 Aug 13; 15 (16)
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Morgan HE, Wang K, Yan Y, Desai N, Hannan R, Chambers E, Cai B, Lin MH, Sher DJ, Wang J, Wang AZ, Jiang S, Timmerman R,
Park CJ
, Garant A. Preliminary Evaluation of PTV Margins for Online Adaptive Radiation Therapy of the Prostatic Fossa. Pract Radiat Oncol. 2023 Jul-Aug; 13 (4):e345-e353 Epub 2022 Dec 10
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Yen A, Choi B, Inam E, Yeh A, Lin MH,
Park C
, Hrycushko B, Nwachukwu C, Albuquerque K. Spare the Bowel, Don't Spoil the Target: Optimal Margin Assessment for Online Cone Beam Adaptive Radiation Therapy (OnC-ART) of the Cervix. Pract Radiat Oncol. 2023 Mar-Apr; 13 (2):e176-e183 Epub 2022 Nov 07
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Chun J,
Park JC
, Olberg S, Zhang Y, Nguyen D, Wang J, Kim JS, Jiang S. Intentional deep overfit learning (IDOL): A novel deep learning strategy for adaptive radiation therapy. Med Phys. 2022 Jan; 49 (1):488-496 Epub 2021 Nov 30
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Olberg S, Chun J, Su Choi B, Park I, Kim H, Kim T, Sung Kim J, Green O,
Park JC
. Abdominal synthetic CT reconstruction with intensity projection prior for MRI-only adaptive radiotherapy. Phys Med Biol. 2021 Oct 1; 66 (20) Epub 2021 Oct 01
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Hassanzadeh C, Rudra S, Bommireddy A, Hawkins WG, Wang-Gillam A, Fields RC, Cai B,
Park J
, Green O, Roach M, Henke L, Kim H. Ablative Five-Fraction Stereotactic Body Radiation Therapy for Inoperable Pancreatic Cancer Using Online MR-Guided Adaptation. Adv Radiat Oncol. 2021 Jan-Feb; 6 (1):100506 Epub 2020 June 25
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Kang SW, Chung JB, Kim KH, Park JY, Park HJ, Cho W, Olberg S, Suh TS,
Park JC
. Development of Volumetric Independent Dose Calculation System for Verification of the Treatment Plan in Image-Guided Adaptive Brachytherapy. Front Oncol. 2020; 10:609 Epub 2020 May 13
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Kim T,
Park JC
, Gach HM, Chun J, Mutic S. Technical Note: Real-time 3D MRI in the presence of motion for MRI-guided radiotherapy: 3D Dynamic keyhole imaging with super-resolution. Med Phys. 2019 Oct; 46 (10):4631-4638 Epub 2019 Aug 27
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Chun J, Zhang H, Gach HM, Olberg S, Mazur T, Green O, Kim T, Kim H, Kim JS, Mutic S,
Park JC
. MRI super-resolution reconstruction for MRI-guided adaptive radiotherapy using cascaded deep learning: In the presence of limited training data and unknown translation model. Med Phys. 2019 Sep; 46 (9):4148-4164 Epub 2019 Aug 07
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Olberg S, Zhang H, Kennedy WR, Chun J, Rodriguez V, Zoberi I, Thomas MA, Kim JS, Mutic S, Green OL,
Park JC
. Synthetic CT reconstruction using a deep spatial pyramid convolutional framework for MR-only breast radiotherapy. Med Phys. 2019 Sep; 46 (9):4135-4147 Epub 2019 Aug 07
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Cai B, Laugeman E, Mazur TR,
Park JC
, Henke LE, Kim H, Hugo GD, Mutic S, Li H. Characterization of a prototype rapid kilovoltage x-ray image guidance system designed for a ring shape radiation therapy unit. Med Phys. 2019 Mar; 46 (3):1355-1370 Epub 2019 Feb 13
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Olberg S, Green O, Cai B, Yang D, Rodriguez V, Zhang H, Kim JS, Parikh PJ, Mutic S,
Park JC
. Optimization of treatment planning workflow and tumor coverage during daily adaptive magnetic resonance image guided radiation therapy (MR-IGRT) of pancreatic cancer. Radiat Oncol. 2018 Mar 24; 13 (1):51
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Wang Y, Mazur TR,
Park JC
, Yang D, Mutic S, Li HH. Development of a fast Monte Carlo dose calculation system for online adaptive radiation therapy quality assurance. Phys Med Biol. 2017 Jun 21; 62 (12):4970-4990 Epub 2017 Apr 20
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Park JY, Li F, Li J, Kahler D,
Park JC
, Yan G, Liu C, Lu B. Angular under-sampling effect on VMAT dose calculation: An analysis and a solution strategy. Med Phys. 2017 Jun; 44(6):2096-2114. Epub 2017 May 18.
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Fan Q, Yeung AR, Amdur R, Helmig R,
Park J
, Li J, Kahler D, Liu C, Lu B. Image-Guided High-Dose Rate Brachytherapy in Cervix Carcinoma Using Balloon Catheter and Belt Immobilization System. Technol Cancer Res Treat. 2017 Jun; 16(3):257-266. Epub 2016 Feb 10.
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Lee HC, Song B, Kim JS, Jung JJ, Li HH, Mutic S,
Park JC
. Variable step size methods for solving simultaneous algebraic reconstruction technique (SART)-type cbct reconstructions. Oncotarget. 2017 May 16; 8 (20):33827-33835
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Lee HC, Song B, Kim JS, Jung JJ, Li HH, Mutic S,
Park JC
. An efficient iterative CBCT reconstruction approach using gradient projection sparse reconstruction algorithm. Oncotarget. 2016 Dec 27; 7 (52):87342-87350
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Lee CY, Song H, Park CW, Chung YH, Kim JS,
Park JC
. Optimization of Proton CT Detector System and Image Reconstruction Algorithm for On-Line Proton Therapy. PLoS One. 2016; 11 (5):e0156226 Epub 2016 May 31
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Park JC
, Zhang H, Chen Y, Fan Q, Li JG, Liu C, Lu B. Common-mask guided image reconstruction (c-MGIR) for enhanced 4D cone-beam computed tomography. Phys Med Biol. 2015 Dec 07; 60(23):9157-83. Epub 2015 Nov 12.
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Fan Q, Lu B,
Park JC
, Niu T, Li JG, Liu C, Zhu L. Image-domain shading correction for cone-beam CT without prior patient information. J Appl Clin Med Phys. 2015 Nov 08; 16(6):65-75.
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Park JC
, Zhang H, Chen Y, Fan Q, Kahler DL, Liu C, Lu B. Priori mask guided image reconstruction (p-MGIR) for ultra-low dose cone-beam computed tomography. Phys Med Biol. 2015 Nov 07; 60(21):8505-24. Epub 2015 Oct 20.
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Park JC
, Li JG, Arhjoul L, Yan G, Lu B, Fan Q, Liu C. Adaptive beamlet-based finite-size pencil beam dose calculation for independent verification of IMRT and VMAT. Med Phys. 2015 Apr; 42(4):1836-50.
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Seo C, Cha BK, Jeon S, Huh Y,
Park JC
, Lee B, Baek J, Kim E. Compressed sensing with gradient total variation for low-dose CBCT reconstruction. Nuclear Instruments and Methods in Physics Research Section A. 2015; 784:570-573.
Lu B, Chen Y,
Park JC
, Fan Q, Kahler D, Liu C. A method of surface marker location optimization for tumor motion estimation in lung stereotactic body radiation therapy. Med Phys. 2015 Jan; 42(1):244-53.
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Song B,
Park JC
, Song WY. A low-complexity 2-point step size gradient projection method with selective function evaluations for smoothed total variation based CBCT reconstructions. Phys Med Biol. 2014 Nov 7; 59 (21):6565-82 Epub 2014 Oct 16
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Park JC
, Kim JS, Park SH, Webster MJ, Lee S, Song WY, Han Y. Four dimensional digital tomosynthesis using on-board imager for the verification of respiratory motion. PLoS One. 2014; 9 (12):e115795 Epub 2014 Dec 26
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Seo CW, Cha BK, Kim RK, Kim CR, Yang K, Huh Y, Jeon S,
Park JC
, Song B, Song WY. Development and Operation of a Prototype Cone-beam Computed Tomography system for X-ray Medical Imaging. J Korean Phys Soc. 2014; 64(1):129-134.
Seo CW, Cha B, Yang K, Jeon S, Huh Y,
Park JC
, Song B, Song WY, Lee B. Imaging performance evaluation of full and binning acquisition modes in a prototype CBCT system equipped with the TFT X-ray detector. Nuclear Instruments and Methods in Physics Research Section A. 2014; 765:280-284.
Park JC
, Kim JS, Park SH, Liu Z, Song B, Song WY. Motion-map constrained image reconstruction (MCIR): application to four-dimensional cone-beam computed tomography. Med Phys. 2013 Dec; 40 (12):121710
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Webster MJ, Devic S, Vuong T, Yup Han D,
Park JC
, Scanderbeg D, Lawson J, Song B, Tyler Watkins W, Pawlicki T, Song WY. Dynamic modulated brachytherapy (DMBT) for rectal cancer. Med Phys. 2013 Jan; 40 (1):011718
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Kauweloa KI,
Park JC
, Sandhu A, Pawlicki T, Song B, Song WY. Visibility of internal target volume of dynamic tumors in free-breathing cone-beam computed tomography for image guided radiation therapy. Prog Med Phys. 2013; 24(4):220-229.
Park JC
, Park SH, Song B, Song WY. SU-E-J-128: Liver Motion during CBCT-Guided SBRT. Med Phys. 2012 Jun; 39 (6Part8):3682
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Park JC
, Song B, Kim JS, Park SH, Kim HK, Liu Z, Suh TS, Song WY. Fast compressed sensing-based CBCT reconstruction using Barzilai-Borwein formulation for application to on-line IGRT. Med Phys. 2012 Mar; 39 (3):1207-17
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Kauweloa KI, Ruan D,
Park JC
, Sandhu A, Kim GY, Pawlicki T, Watkins WT, Song B, Song WY. GateCT surface tracking system for respiratory signal reconstruction in 4DCT imaging. Med Phys. 2012 Jan; 39 (1):492-502
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Park JC
, Park SH, Kim JS, Han Y, Cho MK, Kim HK, Liu Z, Jiang SB, Song B, Song WY. Ultra-fast digital tomosynthesis reconstruction using general-purpose GPU programming for image-guided radiation therapy. Technol Cancer Res Treat. 2011 Aug; 10 (4):295-306
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Park JC
, Park SH, Kim JH, Yoon SM, Kim SS, Kim JS, Liu Z, Watkins T, Song WY. Four-dimensional cone-beam computed tomography and digital tomosynthesis reconstructions using respiratory signals extracted from transcutaneously inserted metal markers for liver SBRT. Med Phys. 2011 Feb; 38 (2):1028-36
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Park JC
, Kim HK, Song WY, Achterkirchen T, Lee HK. Defective pixel map creation based on wavelet analysis in digital radiography detectors. Nuclear Instruments and Methods in Physics Research Section A. 2011; 634(1):101-105.
Watkins WT, Li R, Lewis J,
Park JC
, Sandhu A, Jiang SB, Song WY. Patient-specific motion artifacts in 4DCT. Med Phys. 2010 Jun; 37 (6):2855-61
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Park JC
, Park SH, Kim JS, Han Y, Ju SG, Shin E, Shin JS, Park HC, Ahn YC, Song WY. Digital tomosynthesis for patient alignment system using half-fan mode CBCT projection images. Korean J Med Phys. 2010; 21(4):360-366.
Park, Kim , D, Jang , D, Yoon , H, Choe , B, Kim , H, Lee , H. Contrast enhancement for x-ray images based on combined enhancement of scaling and wavelet coefficients. Korean J Med Phys. 2009; 19(3):150-156.
Jang D-Y, Lee H-K, Choe B-Y, Park C-J, Kim D-I, Suh T-S, Kim J-S, Jung N-K, Seo S-W, Seong W. Performance Evaluation of Carbon-Interspaced Anti-scatter Grids in Mammography: Empirical Formula and Monte Carlo Simulation Studies. J Korean Phys Soc. 2008; 53(2):863-867.
Yoon JW, Park YG,
Park CJ
, Kim DI, Lee JH, Chung NK, Choe BY, Suh TS, Lee HK. Reduction of a grid moire pattern by integrating a carbon-interspaced high precision x-ray grid with a digital radiographic detector. Med Phys. 2007 Nov; 34 (11):4092-7
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Kim D-I, Kim S-H, Park C-J, Choe B-Y, Suh T-S, Lee H-K. A Quantitative Study of the Relationship between Absorbed Energy and DR Pixel Values Based on the X-Ray Energy Spectrum Model. J Korean Phys Soc. 2007; 51(1):224-229.
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