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Arthur J. Olch, PhD

TitleProfessor of Clinical Radiation Oncology
InstitutionUniversity of Southern California
DepartmentRadiation Oncology
AddressCHLA 4650 W. Sunset Blvd.
Off Campus
Los Angeles CA 90027
Phone+1 323 361 5406
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    American Association of Physicists in Medicine2011Fellow of the AAPM

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    Arthur J. Olch is Professor of Radiation Oncology and Clinical Pediatrics at the Keck School of Medicine at the University of Southern California in Los Angeles, California. He is also Chief of Physics for the Children’s Hospital of Los Angeles Radiation Oncology Program, one of only a few radiotherapy centers in the US that treat exclusively children. Dr. Olch received his BS degree in Engineering and his PhD in Medical Physics from the University of California, Los Angeles. He is a Fellow of the American Association of Physics in Medicine (AAPM). Dr. Olch has served as the Chair of the Physics Subcommittee of the Children’s Oncology Group Radiation Oncology Committee and of the AAPM Subcommittee on Quality Assurance and Outcome Improvement as well as serving as chair or member of various AAPM Task Groups. He has been a radiation therapy physicist for over 30 years and has authored or co-authored 50 journal articles and book chapters and written the book on pediatric radiotherapy treatment planning.


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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Moran JM, Molineu A, Kruse JJ, Oldham M, Jeraj R, Galvin JM, Palta JR, Olch A. Executive summary of AAPM Report Task Group 113: Guidance for the physics aspects of clinical trials. J Appl Clin Med Phys. 2018 Jun 29. PMID: 29959816.
      View in: PubMed
    2. Wong KK, Ragab O, Tran HN, Pham A, All S, Waxer J, Olch A. Acute toxicity of craniospinal irradiation with volumetric-modulated arc therapy in children with solid tumors. Pediatr Blood Cancer. 2018 Apr 06; e27050. PMID: 29630782.
      View in: PubMed
    3. Miften M, Olch A, Mihailidis D, Moran J, Pawlicki T, Molineu A, Li H, Wijesooriya K, Shi J, Xia P, Papanikolaou N, Low DA. Tolerance limits and methodologies for IMRT measurement-based verification QA: Recommendations of AAPM Task Group No. 218. Med Phys. 2018 Apr; 45(4):e53-e83. PMID: 29443390.
      View in: PubMed
    4. Breneman JC, Donaldson SS, Constine L, Merchant T, Marcus K, Paulino AC, Followill D, Mahajan A, Laack N, Esiashvili N, Haas-Kogan D, Laurie F, Olch A, Ulin K, Hodgson D, Yock TI, Terezakis S, Krasin M, Panoff J, Chuba P, Hua CH, Hess CB, Houghton PJ, Wolden S, Buchsbaum J, Fitzgerald TJ, Kalapurakal JA. The Children's Oncology Group Radiation Oncology Discipline: 15 Years of Contributions to the Treatment of Childhood Cancer. Int J Radiat Oncol Biol Phys. 2018 Jul 15; 101(4):860-874. PMID: 29976498.
      View in: PubMed
    5. Zhuang AH, Olch A. Sensitivity study of an automated system for daily patient QA using EPID exit dose images. J Appl Clin Med Phys. 2018 Mar 06. PMID: 29508529.
      View in: PubMed
    6. Ng LW, Wong KK, Ally Wu CL, Sposto R, Olch A. Dose Sculpting Intensity Modulated Radiation Therapy for Vertebral Body Sparing in Children With Neuroblastoma. Int J Radiat Oncol Biol Phys. 2018 Feb 15. PMID: 29680256.
      View in: PubMed
    7. Chen TW, Sison J, Lee B, Olch A, Chang A, Giebeler A, Wong K. A Dosimetric Comparison of Intensity-Modulated Proton Therapy, Volumetric-Modulated Arc Therapy, and 4p Non-Coplanar Intensity-Modulated Radiation Therapy for a Patient with Parameningeal Rhabdomyosarcoma. Cureus. 2017 Sep 10; 9(9):e1673. PMID: 29152430.
      View in: PubMed
    8. Sison J, Tran H, Margol A, Tiwari N, Garcia KM, Cotter J, Kiehna E, Olch A, Wong K. Palliative Care Options for a Young Adult Patient with a Diffuse Intrinsic Pontine Glioma. Cureus. 2017 Aug 18; 9(8):e1580. PMID: 29057192.
      View in: PubMed
    9. Wong KK, All S, Waxer J, Olch A, Venkatramani R, Dhall G, Davidson TB, Zaky W, Finlay JL. Radiotherapy after high-dose chemotherapy with autologous hematopoietic cell rescue: Quality assessment of Head Start III. Pediatr Blood Cancer. 2017 Oct; 64(10). PMID: 28379644.
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    10. Rwigema JM, Lamiman K, Reznik RS, Lee NJH, Olch A, Wong KK. Palliative radiation therapy for superior vena cava syndrome in metastatic Wilms tumor using 10XFFF and 3D surface imaging to avoid anesthesia in a pediatric patient-a teaching case. Adv Radiat Oncol. 2017 Jan-Mar; 2(1):101-104. PMID: 28740919.
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    11. Lamiman K, Wong KK, Tamrazi B, Nosrati JD, Olch A, Chang EL, Kiehna EN. A quantitative analysis of craniopharyngioma cyst expansion during and after radiation therapy and surgical implications. Neurosurg Focus. 2016 Dec; 41(6):E15. PMID: 27903114.
      View in: PubMed
    12. Wong K, Opimo AB, Olch A, All S, Waxer JF, Clark D, Cheng J, Chlebik A, Erdreich-Epstein A, Krieger MD, Tamrazi B, Dhall G, Finlay JL, Chang EL. Re-irradiation of Recurrent Pineal Germ Cell Tumors with Radiosurgery: Report of Two Cases and Review of Literature. Cureus. 2016 Apr 25; 8(4):e585. PMID: 27239400; PMCID: PMC4882159.
    13. Wong K, Cheng J, Bowlin K, Olch A. Adaptation of vacuum-assisted mouthpiece head immobilization system for precision infant brain radiation therapy. Pract Radiat Oncol. 2016 Nov - Dec; 6(6):425-428. PMID: 27156425.
      View in: PubMed
    14. Kry SF, Olch A, Mohan R. Comment on "Monte Carlo evaluations of the absorbed dose and quality dependence of Al2O3 in radiotherapy photon beams" [Med. Phys. 36(10), 4421-4424 (2009)]. Med Phys. 2015 May; 42(5):2648-9. PMID: 25979056.
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    15. Kotecha R, Venkatramani R, Jubran RF, Arkader A, Olch A, Wong K. Clinical outcomes of radiation therapy in the management of Langerhans cell histiocytosis. Am J Clin Oncol. 2014 Dec; 37(6):592-6. PMID: 23466581.
      View in: PubMed
    16. Zhuang AH, Olch A. Validation of OSLD and a treatment planning system for surface dose determination in IMRT treatments. Med Phys. 2014 Aug; 41(8):081720. PMID: 25086530.
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    17. Olch A, Gerig L, Li H, Mihaylov I, Morgan A. Dosimetric effects caused by couch tops and immobilization devices: report of AAPM Task Group 176. Med Phys. 2014 Jun; 41(6):061501. PMID: 24877795.
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    18. De A, Kamath S, Wong K, Olch A, Malvar J, Sposto R, Mascarenhas L, Keens TG, Venkatramani R. Correlation of pulmonary function abnormalities with dose volume histograms in children treated with lung irradiation. Pediatr Pulmonol. 2015 Jun; 50(6):596-603. PMID: 24644268.
      View in: PubMed
    19. Antony R, Wong KE, Patel M, Olch A, McComb G, Krieger M, Gilles F, Sposto R, Erdreich-Epstein A, Dhall G, Gardner S, Finlay JL. A retrospective analysis of recurrent intracranial ependymoma. Pediatr Blood Cancer. 2014 Jul; 61(7):1195-201. PMID: 24615997.
      View in: PubMed
    20. Venkatramani R, Kamath S, Wong K, Olch A, Malvar J, Sposto R, Goodarzian F, Freyer DR, Keens TG, Mascarenhas L. Pulmonary outcomes in patients with Hodgkin lymphoma treated with involved field radiation. Pediatr Blood Cancer. 2014 Jul; 61(7):1277-81. PMID: 24482138.
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    21. Fontenot JD, Alkhatib H, Garrett JA, Jensen AR, McCullough SP, Olch A, Parker BC, Yang CC, Fairobent LA. AAPM Medical Physics Practice Guideline 2.a: Commissioning and quality assurance of X-ray-based image-guided radiotherapy systems. J Appl Clin Med Phys. 2014 Jan 06; 15(1):4528. PMID: 24423852.
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    22. Venkatramani R, Kamath S, Wong K, Olch A, Malvar J, Sposto R, Goodarzian F, Freyer DR, Keens TG, Mascarenhas L. Correlation of clinical and dosimetric factors with adverse pulmonary outcomes in children after lung irradiation. Int J Radiat Oncol Biol Phys. 2013 Aug 01; 86(5):942-8. PMID: 23726005.
      View in: PubMed
    23. Miften M, Olch A, Low D. TU-F-BRCD-01: Tolerance Levels and Methodologies for IMRT Verification QA. Med Phys. 2012 Jun; 39(6Part24):3917. PMID: 28518711.
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    24. Arkader A, Phillips AL, Olch A, Wong K. A case of spontaneous hip dislocation that occurred during radiation therapy. J Pediatr Orthop B. 2012 Mar; 21(2):170-3. PMID: 21606852.
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    25. Olch A. Evaluation of the accuracy of 3DVH software estimates of dose to virtual ion chamber and film in composite IMRT QA. Med Phys. 2012 Jan; 39(1):81-6. PMID: 22225277.
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    26. Venkatramani R, Olch A, Mascarenhas L, Yoon S, Suterwala B, Mehta B, Wong K. Correlation of long-term pulmonary injury with radiation dose distribution in childhood cancer survivors. Pract Radiat Oncol. 2012 Jul-Sep; 2(3):237-40. PMID: 24674127.
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    27. Andrade J, Ge S, Symbatyan G, Rosol MS, Olch A, Crooks GM. Effects of sublethal irradiation on patterns of engraftment after murine bone marrow transplantation. Biol Blood Marrow Transplant. 2011 May; 17(5):608-19. PMID: 21176787; PMCID: PMC3086732.
    28. Konijnenberg MW, Olch A. Pediatric dosimetry for intrapleural lung injections of (32)P chromic phosphate. Phys Med Biol. 2010 Oct 07; 55(19):5735-51. PMID: 20826905.
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    29. Olch A, Whitaker ML. Validation of a treatment plan-based calibration method for 2D detectors used for treatment delivery quality assurance. Med Phys. 2010 Aug; 37(8):4485-94. PMID: 20879607.
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    30. Khatua S, Dhall G, O'Neil S, Jubran R, Villablanca JG, Marachelian A, Nastia A, Lavey R, Olch A, Gonzalez I, Gilles F, Nelson M, Panigrahy A, McComb G, Krieger M, Fan J, Sposto R, Finlay JL. Treatment of primary CNS germinomatous germ cell tumors with chemotherapy prior to reduced dose whole ventricular and local boost irradiation. Pediatr Blood Cancer. 2010 Jul 15; 55(1):42-6. PMID: 20222020.
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    31. Lavey RS, Olch A. Optimal treatment for intracranial germinoma: can we lower, radiation dose without chemotherapy? In regard to Yen S-H et al. (Int J Radiat Oncol Biol Phys Epub October 27, 2009). Int J Radiat Oncol Biol Phys. 2010 Jun 01; 77(2):638-9; author reply 639. PMID: 20457356.
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    32. Olch A, Lavey R. Re: Intensity-modulated radiation therapy dose prescription, recording, and delivery: patterns of variability among institutions and treatment planning systems. J Natl Cancer Inst. 2008 Sep 03; 100(17):1263; author reply 1265-7. PMID: 18728289.
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    33. Pai S, Das IJ, Dempsey JF, Lam KL, Losasso TJ, Olch A, Palta JR, Reinstein LE, Ritt D, Wilcox EE. TG-69: radiographic film for megavoltage beam dosimetry. Med Phys. 2007 Jun; 34(6):2228-58. PMID: 17654924.
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    34. Olch A, Geurts M, Thomadsen B, Famiglietti R, Chang EL. Portal imaging practice patterns of children's oncology group institutions: Dosimetric assessment and recommendations for minimizing unnecessary exposure. Int J Radiat Oncol Biol Phys. 2007 Feb 01; 67(2):594-600. PMID: 17236976.
      View in: PubMed
    35. Olch A. Evaluation of a computed radiography system for megavoltage photon beam dosimetry. Med Phys. 2005 Sep; 32(9):2987-99. PMID: 16266113.
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    36. Olch A, Followill D, Thomadsen B, Wichman B, Rosemark P, Hunt M. In regard to Urie et al.: current calibration treatment, and treatment planning techniques among institutions participating in the Children's Oncology Group. IJROBP 2003;55:245-260. Int J Radiat Oncol Biol Phys. 2003 Jul 15; 56(4):1209-10. PMID: 12829169.
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    37. Olch A, Lavey RS. Reproducibility and treatment planning advantages of a carbon fiber relocatable head fixation system. Radiother Oncol. 2002 Dec; 65(3):165-8. PMID: 12464445.
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    38. Olch A. Dosimetric accuracy of the ITP inverse treatment planning system. Med Phys. 2002 Nov; 29(11):2484-8. PMID: 12462712.
      View in: PubMed
    39. Olch A. Dosimetric performance of an enhanced dose range radiographic film for intensity-modulated radiation therapy quality assurance. Med Phys. 2002 Sep; 29(9):2159-68. PMID: 12349938.
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    40. Olch A, Fallen R, Conrad J, Lavey RS. Potential therapeutic misadministration due to inappropriate electron beam field shaping. J Appl Clin Med Phys. 2000; 1(3):95-9. PMID: 11674823.
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    41. Perry D, Wollin M, Olch A, Buffa A. Range spectra in electron penetration problems. Med Phys. 1998 Jan; 25(1):43-55. PMID: 9472825.
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    42. Nath R, Anderson LL, Meli JA, Olch A, Stitt JA, Williamson JF. Code of practice for brachytherapy physics: report of the AAPM Radiation Therapy Committee Task Group No. 56. American Association of Physicists in Medicine. Med Phys. 1997 Oct; 24(10):1557-98. PMID: 9350711.
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    43. Dunlap B, Olch A, Wollin M, Kagan AR. The need for individualized dosimetry for tangential breast treatment. Med Dosim. 1997; 22(4):315-8. PMID: 9503375.
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    44. Bellotti JE, Kagan AR, Wollin M, Olch A. Application of the ICRU Report 38 reference volume concept to the radiotherapeutic management of recurrent endometrial and cervical carcinoma. Radiother Oncol. 1993 Mar; 26(3):254-9. PMID: 8316655.
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    45. Bellotti JE, Kagan AR, Olch A, Wollin M. Conversion from Cs-137 to Ir-192 for high dose rate remote afterloading: practical considerations. Med Phys. 1992 Mar-Apr; 19(2):377-83. PMID: 1584136.
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    46. Iwamoto KS, Norman A, Kagan AR, Wollin M, Olch A, Bellotti J, Ingram M, Skillen RG. The CT scanner as a therapy machine. Radiother Oncol. 1990 Dec; 19(4):337-43. PMID: 2126635.
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    47. Olch A, Kagan AR, Wollin M, Bellotti J. Optimization of arc angles in rotational therapy. Med Dosim. 1990; 15(3):141-6. PMID: 2121155.
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    48. Kuruvilla AM, Olch A, Kagan AR, Rao A, Ryoo M, Hintz BL, Tome M, Streeter O, Miller M, Nussbaum H. Radiotherapy planning for simulation of prostate cancer: computerized tomographic scanning vs. conventional radiographic localization. Med Dosim. 1989 Dec; 14(4):277-84. PMID: 2513829.
      View in: PubMed
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