Byong Y. Yi, PhD

1. B Yi, Eun Kyung Choi, Hyesook Chang. High dose rate Ir-192 source calibration method with newly designed calibration. J Kor Soc Ther Radiol 1989; 7(2):299-304
2. B Yi, EK Choi, HS Chang. Dosimetric Measurement for 4MV X-Ray Linear Accelerator with Asymmetric Collimator System. Korean Journal of Medical       Physics 1990;1:69-73
3. B Yi, JM Kim, JH Kim, KT Kwon, DH Lee, KH Lee, EK Choi, HS Chang. The Calculation Model of Electron Output for the Cut-out Fields, in Consideration of Shielding Area. Korean Journal of Medical Physics 1990;1:61-68
4. B Yi, EK Choi, HS Chang. The Comparison of the KAPM Dosimetric Protocol (1990) with the TG-21 and Cλ / CE Method. J Korean Soc Ther Radiol  1991;9(2):337- 342
5. JK Cho, EK Choi, HS Chang, B Yi, KH Kim, JK Lee. Remote After Loading HDR Brachytherapy for female Urethral Cancer. J Korean Soc Ther Radiol 1991;9(2):319-324
6. HS Chang, EK Choi, B Yi, WD Kim, WS Kim, YS Koh. Remote Afterloading Hish Dose Rate (HDR) Endobronchial Brachytherapy. J Kor Soc Ther Radiol       1991;9(2):227-232
7. B Yi, EK Choi, HS Chang, SM Hong, MZ Lee,  HC Chun. The Experimental Study of the Effective Point of Measurement for Cylindrical Ion-Chamber. Korean Journal of Medical Physics 1991;2:155-160
8. Eunkyung Choi, Hyesook Chang, Byong Yong Yi. Modified Five Field Technique for Primary and Postop Breast Cancer Irradiation. J Korean Soc Ther Radiol 1991;9(1):165-170
9. Byong Yong Yi, Hyesook Chang, Eunkyung Choi, C. Jin Whang Y. Kwon. Physical    Aspect of The gamma Knife and Its Clinical Application. J Korean Soc Ther Radiol          1991;9(1):153-158
10. B Yi, DO Shin, HJ Kim, SE Hong, EK Choi, HS Chang. The Calibration of ⁹⁰Sr   Ophthalmic Application by Measuring Electron Current. Korean Journal of Medical     Physics 1991;2:149-154
11. HJ Kim, BY Yi, KJ Kim, HS Chang, HS Bae, EK Choi, KJ Ahn, KR Park. The Study  of the Measurement Point for Wedge Factor. Korean Journal of Medical Physics      1992;3:13-21
12. Byong Yong Yi, Seok Min Hong, Jae Sung Kim, Eun Kyung Choi, Hyesook Chang,Myung Za Lee, Ha Chung Chun. Determination of the Phantom Scatter Factor (Sp       Factor) Using an Small Block in the Phantom. J Korean Soc Ther Radiol1992;10(1):121-123
13. B Yi, BC Cho, HS Chang. Optimum leaf width of Multileaf Collimator. Korean  Journal of Medical Physics 1994:5(2);49-55
14. B Yi, HS Chang, BC Cho. The Desing of unevenly leaf width distributed Multileaf  Collimator. Korean Journal of Medical Physics 1994; 5(2) :45-48
15. SD Ahn, KM Yang, B Yi, HS Chang, EK Choi. Analysis of Radiation Field and  Block Pattern for Optimal Size in Multileaf Collimator. J Korean Soc Ther Radiol       1994;12(2):253-262
16. EK Choi, KM Yang, B Yi, HS Chang, SY Kim, JH Nam, ES Yoo, IC Lee. In Vitro  Intrinsic Radiosensitivity Of Human Squamous Cell Carcinoma in Primary Culture. J Korean Soc Ther Radiol 1994;12(1):27-31
17. B Yi, HS Chang, JK Bong, SI Kwon. The Development and It's Characteristics of   New Film Dosimety Algorithm for Personal Dosimetry. Korean Journal of Medical     Physics 1995;6(2):35-40 
18. SH Lee, B Yi, SI Kwon, HS Chang, JH Kim. The Verification of Dosimetric   Characteristics of the 3D Compensator with the Exit Beam Dose Profile. Korean       Journal of Medical Physics 1996;7(2):3-17
19. B Yi, MH Kim, SK Nha, BC Cho, JH Kim, EK Choi, HS Chang. The ionization chamber response function from the measured and the corrected by Monte Carlo       Simulation. Korean Journal of Medical Physics 1996; 7(1):7-15.
20. B Yi, HS Chang, YK Cho. The Dosimetric Effects on Scallop Penumbra from Multi- leaf Collimator by Daily Patient Setup Error in Radiation Therapy with Photon. J   Korean Soc Ther Radiol 1996;14(4) :333-338
21. Byong Yong Yi. Geometrical Limitations in Non-coplanar Treatment. Korean Journal of Medical Physics 1997;8(1):31-35
22. SD Ahn, EK Choi, BY Yi, HS Chang. The Study of Normal Tissue Complication Probability(NTCP) for Radiation Pneumonitis by Effective Volume Method. J Korean      Soc Ther Radiol1997;15(3):243-249
23. MH Kim, B Yi, SK Nha, EK Choi, JH Kim, HS　Chang. Commissioning of Dynamic Wedge Field Using Conventional Dosimetric Tools. J Korean Soc Ther Radiol 1997;15(1):71-77
24. S Lee, B Yi, JK Cho, SI Kwon, WK Chung, JH Kim. Geometical QC/QA for Medical Linear Accelerator using Electonic Portal Imaging Devices (EPID). Korean      Journal of Medical Physics 1997;8(2):59-66
25. B Yi, SH Lee, BC Cho, JH Kim, EK Choi, SI Kwon, HS Chang. Direct Measurement of Chamber Response Function and Its Application to Radiation Dose Distribution             Dosimetry. J Korean Soc Ther Radiol 1997; 15(1):65-69
26. SH Kim, YJ Kim, MJ Lee, HJ Jun, BY Yi. Study on the Physical Properties of the Gamma Beam-Irradiated Tefoln-FEP and PET film. Korean Journal of Medical       Physics 1998;9(1):11-21
27. EK Choi, B Yi, WC Kang, YJ Noh, WK Chung, SD Ahn, JH Kim, HS Chang. Clinical Experience of Three Dimensional Conformal. J Korean Soc Ther Radiol       1998;16(3):265-274
28. Byong Yong Yi.. The Broad-beam CT Image Reconstruction from Simulator Images. J Korean Soc Ther Radiol 1998;16(1):81-86
29. DH Moon, SJ Oh, HK Lee, B Yi, EH Kim, SW Park. Options in Intracoronary Radiation Therapy. The Korean Society of Nuclear Medicine 1999;33(2):209-222
30. WK Chung, B Yi, EK Choi, JH Kim, SD Ahn, S Lee, CK, Min, CB Park.  Development of the Whole Body 3D Topographic Radiotherapy system. Korean       Journal of Medical Physics 1999;10(2):63-71
31. C.-M. Ma, T. Pawlicki, M.C. Lee, S.B. Jiang, J.S. LI, J. Deng, B. Yi, E. Mok, A.L. Boyer. Energy-and intensity-modulated electron beams for radiotherapy. Phys Med          Biol 2000;45(8):2293-2311
32. CK Min, BY Yi, SD Ahn, EK Choi, HS Chang, A CT Simulator Phantom for  Geometrical Test. J Korean Soc Ther Radiol 2000;18(4) :337-344
33. SD Ahn, BY Yi, EK Choi, JH Kim, YJ Noh, KH Shin, KJ Kim, WK Chung, HS Chang.       Preliminary Results of Stereotactic Radiosurgery UsingStereotactic Body Frame. J    Korean Soc Ther Radiol 2000;18(4):251 -256
34. BY Yi, SJ Cho, SD Ahn, JH Kim, EK Choi, HS Chang, SI Kwon. A Feasibility Study         of the IMRT Optimization with Pseudo-Biologic Objective Function. J Korea Asso.          Radiat. Prot. 2001;26(4):417-424
35. JY Song, BY Yi, TJ Choi. Algorithm for the design of a Virtual Compensator using the   Multileaf Collimator and 3D RTP System. Korean Journal of Medical Physics      2001;12(2):185-191
36. LIN Zhi-Xiong, XING Lei, LI De-rui, HAI Ou, Byong Yong Yi, Arthur Boyer,       Richard Hoppe. Clinical Practice of Intensity Modulated Radiation Therapy Chinese     Journal of Cancer 2001;20(2):211-214
37. YL Suh, #BY Yi, SA Shin, JH Kim, SD Ahn, SW Lee, EK Choi TS Suh. A Feasibility Study on the Abdomen Immobilization with Air Injected Balloon Blanket. Korean   Journal of Medical Physics 2002;13(3):176-180
38. YL Suh, #BY Yi, SA Shin, JH Kim, SD Ahn, SW Lee, EK Choi. A Feasibility Study on the Prediction of the Target in the Lung from the Skin Motion-Animal Study.        Korean Journal of Medical Physics 2002; 13(3):163-168
39. BY Yi, CK Min, WK Chung, EK Chio. Optimum Field Size for the Whole Body Stereotactic Radiosurgery. Korean Journal of Medical Physics 2002;13(1):15-20
40. SM Yoon, #BY Yi, EK Choi, JH Kim, SD Ahn, SW Lee. Quality Assurance of Patients   for Intensity Modulated Radiation Therapy. J Korean Soc Ther Radiol 2002;20(1):81-     90
41. YE Ko, BY Yi, BC Cho, SD Ahn, JH Kim, SW Lee, EK Choi. A Feasibility study on the Simplified Two Source Model for Relative Electron Output Factor of Irregular       Block Shape. Korean Journal of Medical Physics 2002;13(1):21-26
42. SY Kim, BY Yi, KS Joo, JH Kim, SD Ahn, EK Choi. One Click Film (OCF) Dosimetry System for Routine QA. J Korean Soc Ther Radiol 2002;20(4):375-      380
43. SJ Cho, #BY Yi, SW Lee, SD Ahn, JH Kim, SI Kwon, EK Choi. Spinal Cord Partial   Block Technique Using Dynamic MLC. Korean Journal of Medical Physics      2003;14(1):8-14
44. Sang Min Yoon, Eun Kyung Choi, Sang-wook Lee, Jung Shin Lee, Sang Do Lee, Cheolwon Suh, Sang-We Kim, Woo Sung Kim, Seung Do Ahn, Byong Yong Yi, Jong          Hoon Kim, Seong Soo Shin, Younsuck Koh, Dong Soon Kim, Won-Dong Kim. Phase   II Study of 3-D Conformal Radiotherapy and Concurrent MVP (Mitomycin-         C+Vinblastine+Cisplatin) Chemotherapy for Unresectable Non-Small Cell Lung   Cancer. J Lung Cancer 2003;2(1):23-30
45. SM Yoon, SW Lee, SD Ahn, JH Kim, BY Yi, YS Ra, TH Kim, EK Choi. Technical  Review of Target Volume Delineation on the Posterior Fossa Tumor : An Optimal       Head and Neck Position. J Korean Soc Ther Radiol 2003;21(1):94-99
46. Dong Gyu Na, Jae Wook Ryoo, Kwang Ho Lee, Chan Hong Moon, Chin A. Yi, Eun Yeop Kim, Soo Joo Lee, Byong Yong Yi, Jae Hyoung Kim, and Hong Sik Byun.        Multiphasic Perfusion Computed Tomography in Hyperacute Ischemic Stroke: Comparison with Diffusion and Perfusion Magnetic Resonance Imaging. Journal of             Computer Assisted Tomography 2003;27(2):194-206
47. Sang-wook Lee, Eun Kyung Choi, Heon Joo Park, Seung Do Ahn, Jong Hoon Kim, Kyung Ju Kim, Sang Min Yoon, Young Seok Kim, Byong Yong Yi. Stereotactic body          frame based fractionated radiosurgery on consecutive days for primary or metastatic             tumors in the lung. Lung Cancer 49(2003) 309-315
48. Sang-wook Lee, Eun Kyung Choi, Jung Shin Lee, Sang Do Lee, Cheolwon Suh, Sang-We Kim, Woo Sung Kim, Seung Do Ahn, Byong Yong Yi, Jong Hoon Kim,       Young Ju Noh, Su Ssan Kim, Younsuck Koh, Dong Soon Kim, Won-Dong Kim. Phase II Study of Three-Dimensional Conformal Radiotherapy and Concurrent Mitomycin-C,       Yinblastine, And Cisplatin Chemotherapy for Stage III Locally Advanced,  Unresectable, Non-Small-Cell Lung Cancer. Int. J. Radiation Oncology Biol. Phys        2003;56(4):96-           1004.
49. YE Ko, #BY Yi. Optimum Segment Size for Intensity Modulated Radiotherapy.  Journal of Lung Cancer 2004;3(1):
50. KH Kim, MJ Cho, YE Kim, BY Yi, JK Kim, SW Lim, HS Kim. Feasibility study of   parallel-plate detector using dielectric film for 6 MV X-ray. Korean Journal of       Medical Physics 2004;15(2):105-111
51. KwangylPark, Byong Yong Yi, Young W. Vahc. Deconvolution of Detectro Size Effect Using Monte Carlo Simulation. Korean Journal of Medical Physics       2004;15(2):100-104
52. YW Vahc, K Park, KR Park, O Kwon, MH Lee, BY Yi, YH Ji, KM Kim. The Properties of Beam Intensity Scanner (BInS) for Dose Verification in Intensity       Modulated Radiation Therapy. Korean Journal of Medical Physics 2004;15(1):1- 8
53. SW Lim, #BY Yi, YE Ko, SD Ahn, SW Lee, JH Kim, SS Shin, SI Kwon, EK Choi. Feasibility Study of the Real-Time IMRT Dosimetry Using a Scintillation Screen. J    Korean Soc Ther Radiol  2004;22(1):64-68
54. SS Kim, SH Ha, EK Choi, #BY Yi. Impact of the Planning CT Scan Time on the Reflection of the Lung Tumor Motion. J Korean Soc Ther Radiol 2004;22(1):55-      63
55. Sang Min Yoon, Jong Hoon Kim, Eun Kyung Choi, Seung Do Ahn, Sang-wook Lee,  Byong Yong Yi, Young Wha Chung, Young Sang Lee, Dong Jin Seo.   Radioresponse of Hepatocellular Carcinoma-Treatment of Lymph Node Metastasis.     Cancer Research and Treatment 2004;36(1):79-84
56. Y. Suh, #B. Yi, S. Ahn, J. Kim, S. Lee, S. Shin, E. Choi. Aperture maneuver with compelled breath (AMC) for moving tumors: A feasibility study with a moving       phantom. Medical Physics 2004;31(4):760-766
57. S Ahn, #B Yi, Y Suh, J Kim, S Lee, S Shin, E Choi. A feasibility study on the  prediction of tumor location in the lung from skin motion. The British Journal of       Radiology 2004;77:588-596
58. Nam SY, Lee SW, Im KC, Kim JS, Kim SY, Choi SH, Ryu JS, Moon DH, Oh SJ,  Yi BY, Kim JH, Ahn SD, Shin SS, Kim SB, Choi EK, Lee BJ.  Early evaluation of       the response to radiotherapy of patients with squamous cell carcinoma of the head and neck using 18FDG-PET. Oral Oncol. 2005 Apr;41(4):390-5.
59. Kim YS, Yoon SM, Choi EK, Yi BY, Kim JH, Ahn SD, Lee SW, Shin SS, Lee JS, Suh C, Kim SW, Kim DS, Kim WS, Park HJ, Park CI.  Phase II study of       radiotherapy   with three-dimensional conformal boost concurrent with paclitaxel and cisplatin for Stage IIIB non-small-cell lung cancer. Int J Radiat Oncol Biol Phys. 2005 May        1;62(1):76-81
60. Ko YE, Suh Y, AhnSD, Lee S, Shin SS,  Kim JH, Choi EK, #Yi BY, Immobilization effect of air-injected blanket (AIB) for abdomen fixation,  Med.       Phys. 2005 32 (11) :3363-3366
61. Lee SW, Back GM, Yi BY, Choi EK, Ahn SD, Shin SS, Kim JH, Kim SY, Lee BJ, Nam SY, Choi SH, Kim SB, Park JH, Lee KK, Park SH, Kim JH. Preliminary       results of a phase I/II study of simultaneous modulated accelerated radiotherapy for nondisseminated nasopharyngeal carcinoma. Int J Radiat Oncol Biol Phys. 2006            65(1):152-60
62. Yoon SM, Choi EK, Lee SW, Yi BY,  Ahn SD, Shin SS, Park HJ ,e tal.  Clinical results of stereotactic body frame based fractionated radiation therapy for primary       or metastatic thoracic tumors Acta Oncologica, 2006; 45: 1108-1114   
63. Ko YE, Park SH, Yi BY, Ahn SD, Lim S et al. Clinical implementation of eye fixing and monitoring system with head mount display. Korean Journal of       Medical Physics 2007;18(1):1-6
64. Lim S, Park S, Ahn SD, Suh Y, Shin SS,  Lee S, Kim JH, Choi EK, Yi BY, et al, Guiding curve based on the normal breathing as monitored by thermocouple for       regular breathing , Med Phys 2007;34(11): 4514-4518.
65. Lim S, Jeung TS, Park SH, Ahn SD, Lee S, Kim CY, Yi BY, et al, Determination of Target Motion by using a resipiration monitoing Mask for 4-D Radiotherapy. J.   Kor      Phys Soc 2008; 53(2):845-850.
66. Liu B, Lerma FA, Patel S, Amin P, Feng Y, Yi BY, Yu C. Dosimetric effects of the prone and supine positions on image guided localized prostate cancer radiotherapy.        Radiother Oncol. 2008; 88(1):67-76.
67. Ha JK, Perlow DB, Yi BY, Yu CX. On the sources of drift in a turbine-based spirometer. Phys Med Biol. 2008; 53(16):4269-4283.
68. Yi B, Han-Oh S, Lerma F, Berman B, Yu C. Real-Time Tumor Tracking with Preprogrammed Dynamic Multileaf-Collimator Motion and Adaptive Dose-Rate       Regulation, Med Phys, 2008; 35(9): 3955-3962
69. Han-Oh S, #Yi B, Berman B, Lerma F, Yu C Usefulness of Guided Breathing for Dose-Rate-Regulated Tracking, Int J Radiat Oncol Biol Phys, 2009; 73(2):594-      600
70. Zhang J, #Yi B, Lerma F, Suntharalingam M, C Yu. Tomographic image via background subtraction using an x-ray projection image and a priori computed       tomography,  Med Phys 2009; 36(10):4433-4439
71. Lerma F, Liu B, Yi B, Amin P, Yu C. Role of Image-Guided Patient Repositioning and Online Planning in Localized Prostate Cancer IMRT, Radiotherapy and       Oncology 2009; 93(1): 18-24
72. Lim DH, Yi B, Mirmiran A, Dhople A, Suntahlarlingam M, D’Souza W. Optimal beam arrangement for stereotactic body radiation therapy delivery in lung tumors,       Acta Oncologica 2010; 49(2):219-224
73. Han-Oh S, #Yi B, Berman B, Lerma F, Yu C. The Accuracy of Dose-Rate-Regulated Tracking: a Parametric Study, Physics in Medicine and Biology 2010;       55 (3): 747-759
74. Gui M , Feng Y, Yi B, Dhople A and Yu C, Four-dimensional intensity-modulated radiation therapy planning for dynamic tracking using a direct aperture deformation          (DAD) method, Med Phys 2010; 37(5):1966-1975
75. Han-Oh S, #Yi B, Lerma F, Berman B, Gui M, Yu C, Verification of MLC based real-time tumor tracking using an Electronic Portal Imaging Device,  Med Phys  2010; 37(6): 2435-2444
76. Nichols R, Huh S,  Prado K, Yi B, Sharma N, Ho M, Hoppe B, Mendenhall W, Mendenhall N, Regine W, Protons Offer Reduced Normal Tissue Exposure for Patients Receiving Postoperative Radiotherapy for Resected Pancreatic Head Cancer , Int J Radiat Oncol Biol Phys 2012; 83(1):158-163
77. Wang Z, Wang K, Lerma FA, Liu B, Amin P, B Yi, Hobeika, G, C Yu, Planning Margins to CTV for Image-Guided Whole Pelvis Prostate Cancer Intensity-Modulated Radiotherapy , International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 2012, 1:23-31
78. Lim S, Ma SY, Jeung TS, Yi BY, Lee SH, Lee S, Cho SJ, Choi J, Development of a one-stop beam verification system using electronic portal imaging devices for routine quality assurance, Medical Dosimetry 2012, 32:296-2304
79. Niu Y, Zhang G, Berman BL, Parke WC, Yi B, Yu CX, Improving IMRT-plan quality with MLC leaf position refinement post optimization, Med Phys 2012; 39(8): 5118-5126
80. Yang X, Han-Oh S, Gui M, Niu Y, Yu CX, #Yi B, Four-dimensional dose distributions of step-and-shoot IMRT delivered with real-time tumor tracking for patients with irregular breathing: constant dose rate vs dose rate regulation Med Phys 2012: 39(9):5557-5566
81. Betzel GT, Yi B, Niu Y, Yu CX, Is rotational IMRT more susceptible to delivery uncertainties than dynamic IMRT?, Med Phys. 2012 39(10): 5882-5890
82. Yeo IJ, Jung JW, Yi B, Kim JO, Feasibility study on inverse four-dimensional dose reconstruction using the continuous dose-image of EPID,  Med Phys. 2013 40(5): 051702-1-11
83. Mutaf DY, Zhang J, Yu CX, Yi B, Prad K, D’Souza WD, Regine WF, Dosimetric and geometric evaluation of a novel stereotactic radiotherapy device for breast cancer: The GammaPod™ Med Phys. 2013 40(10): 041722-1-11
84. Yeo IJ, Jung JW, Patyal B, Mandapaka A, Yi B, Kim JO, Conditions for reliable time-resolved dosimetry of electronic portal imaging devices for fixed-gantry IMRT and VMAT, Med Phys 2013, 2013 40(7):072102 -1-8
85. H. H. Zhang, B. Y. Yi, G. Betzel and W. D. D'Souza, Beam Controlled Arc Therapy - A Novel Delivery Concept for Stationary Targets, Phys Med Biol. 2013, 58 (9):7117-7129.
86. Chung H, Prado KP, Yi B, An analytical formalism to calculate phantom scatter factors for Flattening Filter Free (FFF) mode photon beams, Phys Med Biol. 2014, 59 :951-960.
87. Liu B, Lerma F, Wu J, Yi B, Yu C,  Tissue Density Mapping of Cone Beam CT Images for Accurate Dose Calculations, Int J. Med Phys Clinc Eng and Rad Oncol, 2015:162-171.
88. S Chen, B Yi, H Xu, X Yang, K Prado, W D'Souza, Optimizing the MLC Model Parameters for IMRT in the RayStation Treatment Planning System, JACMP, 2015, 16(5):322-332
89. Ko YE, Cho B, Kim SS, Song SY, Choi EK, Ahn SD, Yi B, Improving Delivery Accuracy of Stereotactic Body Radiotherapy to a Moving Tumor Using Simplified Volumetric Modulated Arc Therapy. PLoS ONE 2016, 11(6): e0158053.
90. Yi B, Geem BW, Search for musical harmony in radiation Oncology, Leonardo, 2016, Accepted.
91. Yoon J, Jung JW, Kim JO, Yi B, Yeo I, Four-dimensional dose reconstruction through in-vivo phase matching of cine images of electronic portal imaging device, Med. Phys. 2016, 43(7):4420-4427.

Radiation therapy to moving targets is major research interest. This topic includes to acquire tumor position in realtime and to deliver radiation to the moving organ . Dr. Yi has invented a novel idea to track a tumor during radiotherapy, called dose-rate-regulated therapy (DRRT) and also invented a method to generate tomographic image via backgorund subtraction (TIBS) which enables to acquire tomographic images during treatments.

9/29/2009 - 7/31/2016 (PI, 20%) “Radiotherapy with Dose - Rate Regulated Tracking”
NIH R01 (NCE)
Annual Direct Cost $ 292,625
Total Direct Cost $1,177,312

7/1/2013 - 6/30/2018 (10%) “Personalized Motion Management for truly 4D Lung Stereotactic Body Radiotherapy”
NIH R01
Total cost portion $447,085

8/1/2014 - 4/30/2017 (PI, 5%) “Extending the Raven QA to Patient Specific QA”
Maryland Industrial Partner Ship Grant
$200,000