Lijun Ma, PhD

Title(s)Professor Emeritus, Radiation Oncology
SchoolSchool of Medicine
Address505 Parnassus Avenue, #008G
San Francisco CA 94117
Phone415-353-8932
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    American Association of Physicists in Medicine2015Fellow

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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. to make corrections and additions.
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    1. Redistributing Central Target Dose Hot Spots for Hypofractionated Radiosurgery of Large Brain Tumors: A Proof-of-Principle Study. Acta Neurochir Suppl. 2021; 128:101-106. Ma L, Braunstein SE, Golden E, Fogh S, Nakamura J, McDermott MW, Sneed PK. PMID: 34191065.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. Possible Overcoming of Tumor Hypoxia with Adaptive Hypofractionated Radiosurgery of Large Brain Metastases: A Biological Modeling Study. Acta Neurochir Suppl. 2021; 128:107-112. Ma L, Tseng CL, Sahgal A. PMID: 34191066.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    3. Feasibility and Significance of Dose Adaptation via Linear Couch Translations to Correct for Rotational Shifts During Frameless Brain Radiosurgery with the Gamma Knife Icon™. Acta Neurochir Suppl. 2021; 128:145-150. Cheung JP, Morin O, Braunstein SE, Sneed PK, Theodosopoulos PV, McDermott MW, Ma L. PMID: 34191071.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    4. Impact of the Skull Size on the Normal Brain Radiation Dose During Gamma Knife Radiosurgery: Results of a Pilot Study. Acta Neurochir Suppl. 2021; 128:151-155. Ma L, Fogh S, Braunstein SE, Auguste K, Theodosopoulos PV, McDermott MW, Sneed PK. PMID: 34191072.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Attention-Aware Discrimination for MR-to-CT Image Translation Using Cycle-Consistent Generative Adversarial Networks. Radiol Artif Intell. 2020 Mar; 2(2):e190027. Kearney V, Ziemer BP, Perry A, Wang T, Chan JW, Ma L, Morin O, Yom SS, Solberg TD. PMID: 33937817; PMCID: PMC8017410.
      View in: PubMed   Mentions: 12  
    6. Stereotactic Radiosurgery to More Than 10 Brain Metastases: Evidence to Support the Role of Radiosurgery for Ideal Hippocampal Sparing in the Treatment of Multiple Brain Metastases. World Neurosurg. 2020 Mar; 135:e174-e180. Susko MS, Garcia MA, Ma L, Nakamura JL, Raleigh DR, Fogh S, Theodosopoulos P, McDermott M, Sneed PK, Braunstein SE. PMID: 31785436; PMCID: PMC8152323.
      View in: PubMed   Mentions: 10     Fields:    Translation:Humans
    7. Stereotactic radiosurgery for vestibular schwannomas. Cancer Manag Res. 2018; 10:3733-3740. Braunstein S, Ma L. PMID: 30288104; PMCID: PMC6159807.
      View in: PubMed   Mentions: 4  
    8. Resection Cavity Contraction Effects in the Use of Radioactive Sources (1-25 versus Cs-131) for Intra-Operative Brain Implants. Cureus. 2018 Jan 16; 10(1):e2079. Han DY, Ma L, Braunstein S, Raleigh D, Sneed PK, McDermott M. PMID: 29560292; PMCID: PMC5856410.
      View in: PubMed   Mentions: 8  
    9. Correlation between small-volume spinal cord doses for spine stereotactic body radiotherapy (SBRT). J Radiosurg SBRT. 2018; 5(3):229-236. Ma L, Wang L, Lee Y, Tseng CL, Soltys S, Braunstein S, Sahgal A. PMID: 29988301; PMCID: PMC6018048.
      View in: PubMed   Mentions: 2  
    10. Emerging technologies in stereotactic body radiotherapy. Chin Clin Oncol. 2017 Sep; 6(Suppl 2):S12. Ma L, Wang L, Tseng CL, Sahgal A. PMID: 28917250.
      View in: PubMed   Mentions: 17     Fields:    Translation:Humans
    11. Patient-Specific Fetal Dose Determination for Multi-Target Gamma Knife Radiosurgery: Computational Model and Case Report. Cureus. 2017 Jul 31; 9(7):e1527. Paulsson AK, Braunstein S, Phillips J, Theodosopoulos PV, McDermott M, Sneed PK, Ma L. PMID: 28975062; PMCID: PMC5621780.
      View in: PubMed   Mentions: 2  
    12. Dosimetric characterization of hypofractionated Gamma Knife radiosurgery of large or complex brain tumors versus linear accelerator-based treatments. J Neurosurg. 2016 12; 125(Suppl 1):97-103. Dong P, Pérez-Andújar A, Pinnaduwage D, Braunstein S, Theodosopoulos P, McDermott M, Sneed P, Ma L. PMID: 27903198.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    13. Sharpening peripheral dose gradient via beam number enhancement from patient head tilt for stereotactic brain radiosurgery. Phys Med Biol. 2016 10 21; 61(20):N532-N541. Chiu J, Pierce M, Braunstein SE, Theodosopoulos PV, McDermott MW, Sneed PK, Ma L. PMID: 27694708.
      View in: PubMed   Mentions:    Fields:    
    14. Inherent functional dependence among cochlear dose surrogates for stereotactic radiosurgery of vestibular schwannomas. Pract Radiat Oncol. 2017 Jan - Feb; 7(1):e1-e7. Ma L, Braunstein SE, Theodosopoulos PV, McDermott MW, Sneed PK. PMID: 27742557.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    15. Estimating the probability of underdosing microscopic brain metastases with hippocampal-sparing whole-brain radiation. Radiother Oncol. 2016 08; 120(2):248-52. Chang JS, Perez-Andujar A, Barani IJ, Ma L, Larson DA. PMID: 27406442.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    16. Minimizing normal tissue dose spillage via broad-range optimization of hundreds of intensity modulated beams for treating multiple brain targets. J Radiosurg SBRT. 2016; 4(2):107-115. Dong P, Hossain S, Keeling V, Ahmad S, Xing L, Ma L. PMID: 29296435; PMCID: PMC5658872.
      View in: PubMed   Mentions:
    17. The era of stereotactic body radiotherapy for spinal metastases and the multidisciplinary management of complex cases. Neurooncol Pract. 2016 Mar; 3(1):48-58. Kumar R, Nater A, Hashmi A, Myrehaug S, Lee Y, Ma L, Redmond K, Lo SS, Chang EL, Yee A, Fisher CG, Fehlings MG, Sahgal A. PMID: 31579521; PMCID: PMC6760340.
      View in: PubMed   Mentions: 8  
    18. Hippocampal Dose With Radiosurgery for Multiple Intracranial Targets: The Rationale for Proactive Beam Shaping. Technol Cancer Res Treat. 2016 08; 15(4):555-9. Chang JS, Ma L, Barani IJ, McDermott MW, Sneed PK, Larson DA. PMID: 26113558.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    19. Letter: volumetric arc therapy (RapidArc) vs Gamma Knife radiosurgery for multiple brain metastases. Neurosurgery. 2015 Mar; 76(3):E353. Ma L, Sahgal A, Larson DA. PMID: 25599216.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    20. Clinical realization of sector beam intensity modulation for Gamma Knife radiosurgery: a pilot treatment planning study. Int J Radiat Oncol Biol Phys. 2015 Mar 01; 91(3):661-8. Ma L, Mason E, Sneed PK, McDermott M, Polishchuk A, Larson DA, Sahgal A. PMID: 25542309.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    21. Impact of millimeter-level margins on peripheral normal brain sparing for gamma knife radiosurgery. Int J Radiat Oncol Biol Phys. 2014 May 01; 89(1):206-13. Ma L, Sahgal A, Larson DA, Pinnaduwage D, Fogh S, Barani I, Nakamura J, McDermott M, Sneed P. PMID: 24725703.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    22. Variable dose interplay effects across radiosurgical apparatus in treating multiple brain metastases. Int J Comput Assist Radiol Surg. 2014 Nov; 9(6):1079-86. Ma L, Nichol A, Hossain S, Wang B, Petti P, Vellani R, Higby C, Ahmad S, Barani I, Shrieve DC, Larson DA, Sahgal A. PMID: 24748208; PMCID: PMC4215114.
      View in: PubMed   Mentions: 27     Fields:    Translation:Humans
    23. Whole-procedural radiological accuracy for delivering multi-session gamma knife radiosurgery with a relocatable frame system. Technol Cancer Res Treat. 2014 Oct; 13(5):403-8. Ma L, Pinnaduwage D, McDermott M, Sneed PK. PMID: 24000986; PMCID: PMC4527471.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    24. Individual beam sharpening improves composite dose fall-off near a target for non-isocentric cyberknife radiosurgery. Technol Cancer Res Treat. 2013 Aug; 12(4):341-8. Wahl M, Hwang A, Nakamura J, Barani I, Fogh S, Sneed P, McDermott M, Sahgal A, Ma L. PMID: 23369157.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    25. High-precision volume-staged Gamma Knife surgery and equivalent hypofractionation dose schedules for treating large arteriovenous malformations. J Neurosurg. 2012 Dec; 117 Suppl:115-9. Fogh S, Ma L, Gupta N, Sahgal A, Nakamura JL, Barani I, Sneed PK, McDermott M, Larson DA. PMID: 23205798.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    26. Reliability of contour-based volume calculation for radiosurgery. J Neurosurg. 2012 Dec; 117 Suppl:203-10. Ma L, Sahgal A, Nie K, Hwang A, Karotki A, Wang B, Shrieve DC, Sneed PK, McDermott M, Larson DA. PMID: 23205811.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    27. Assessing small-volume spinal cord dose for repeat spinal stereotactic body radiotherapy treatments. Phys Med Biol. 2012 Dec 07; 57(23):7843-51. Ma L, Kirby N, Korol R, Larson DA, Sahgal A. PMID: 23135285.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    28. Probabilities of radiation myelopathy specific to stereotactic body radiation therapy to guide safe practice. Int J Radiat Oncol Biol Phys. 2013 Feb 01; 85(2):341-7. Sahgal A, Weinberg V, Ma L, Chang E, Chao S, Muacevic A, Gorgulho A, Soltys S, Gerszten PC, Ryu S, Angelov L, Gibbs I, Wong CS, Larson DA. PMID: 22713832.
      View in: PubMed   Mentions: 73     Fields:    Translation:HumansPHPublic Health
    29. Comparison between prone and supine patient setup for spine stereotactic body radiosurgery. Technol Cancer Res Treat. 2012 Jun; 11(3):229-36. Descovich M, Ma L, Chuang CF, Larson DA, Barani IJ. PMID: 22468994.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    30. Spine stereotactic body radiotherapy utilizing cone-beam CT image-guidance with a robotic couch: intrafraction motion analysis accounting for all six degrees of freedom. Int J Radiat Oncol Biol Phys. 2012 Mar 01; 82(3):e555-62. Hyde D, Lochray F, Korol R, Davidson M, Wong CS, Ma L, Sahgal A. PMID: 22284042.
      View in: PubMed   Mentions: 41     Fields:    Translation:HumansPHPublic Health
    31. Cone beam CT (CBCT) evaluation of inter- and intra-fraction motion for patients undergoing brain radiotherapy immobilized using a commercial thermoplastic mask on a robotic couch. Technol Cancer Res Treat. 2012 Jun; 11(3):203-9. Lightstone AW, Tsao M, Baran PS, Chan G, Pang G, Ma L, Lochray F, Sahgal A. PMID: 22376132.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    32. Impact of dose hot spots on spinal cord tolerance following stereotactic body radiotherapy: a generalized biological effective dose analysis. Technol Cancer Res Treat. 2012 Feb; 11(1):35-40. Sahgal A, Ma L, Fowler J, Weinberg V, Gibbs I, Gerszten PC, Ryu S, Soltys S, Chang E, Wong CS, Larson DA. PMID: 22181329.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    33. Advances in radiation therapy of brain metastasis. Prog Neurol Surg. 2012; 25:96-109. Lo SS, Sahgal A, Ma L, Chang EL. PMID: 22236671.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansPHPublic Health
    34. A technique for achieving submillimeter accuracy of volume-staged stereotactic radiosurgery. J Radiosurg SBRT. 2012; 2(1):11-17. Ma L, Fogh S, Gupta N, Hwang A, Pinnaduwage D, Nakamura J, Barani I, McDermott M, Sneed PK, Larson DA, Sahgal A. PMID: 29296338; PMCID: PMC5658849.
      View in: PubMed   Mentions: 3  
    35. Stereotactic body radiotherapy is an effective treatment in reirradiating spinal metastases: current status and practical considerations for safe practice. Expert Rev Anticancer Ther. 2011 Dec; 11(12):1923-33. Masucci GL, Yu E, Ma L, Chang EL, Letourneau D, Lo S, Leung E, Chao S, Hyde D, Gorgulho A, Muacevic A, Larson DA, Fehlings MG, Sahgal A. PMID: 22117159.
      View in: PubMed   Mentions: 12     Fields:    Translation:Humans
    36. Temporal compartmental dosing effects for robotic prostate stereotactic body radiotherapy. Phys Med Biol. 2011 Dec 21; 56(24):7767-75. Shiao SL, Sahgal A, Hu W, Jabbari S, Chuang C, Descovich M, Hsu IC, Gottschalk AR, Roach M, Ma L. PMID: 22107791.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    37. Prognostic factors for survival in patients treated with stereotactic radiosurgery for recurrent brain metastases after prior whole brain radiotherapy. Int J Radiat Oncol Biol Phys. 2012 May 01; 83(1):303-9. Caballero JA, Sneed PK, Lamborn KR, Ma L, Denduluri S, Nakamura JL, Barani IJ, McDermott MW. PMID: 22079723.
      View in: PubMed   Mentions: 32     Fields:    Translation:Humans
    38. Shot sequencing based on biological equivalent dose considerations for multiple isocenter Gamma Knife radiosurgery. Phys Med Biol. 2011 Nov 21; 56(22):7247-56. Ma L, Lee L, Barani I, Hwang A, Fogh S, Nakamura J, McDermott M, Sneed P, Larson DA, Sahgal A. PMID: 22037677.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    39. A two-step optimization method for improving multiple brain lesion treatments with robotic radiosurgery. Technol Cancer Res Treat. 2011 Aug; 10(4):331-8. Ma L, Sahgal A, Hwang A, Hu W, Descovich M, Chuang C, Barani I, Sneed PK, McDermott M, Larson DA. PMID: 21728390.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    40. Apparatus dependence of normal brain tissue dose in stereotactic radiosurgery for multiple brain metastases. J Neurosurg. 2011 Jun; 114(6):1580-4. Ma L, Petti P, Wang B, Descovich M, Chuang C, Barani IJ, Kunwar S, Shrieve DC, Sahgal A, Larson DA. PMID: 21375377.
      View in: PubMed   Mentions: 21     Fields:    Translation:Humans
    41. Stereotactic body radiotherapy for spinal metastases: current status, with a focus on its application in the postoperative patient. J Neurosurg Spine. 2011 Feb; 14(2):151-66. Sahgal A, Bilsky M, Chang EL, Ma L, Yamada Y, Rhines LD, Létourneau D, Foote M, Yu E, Larson DA, Fehlings MG. PMID: 21184635.
      View in: PubMed   Mentions: 60     Fields:    Translation:Humans
    42. Stereotactic body radiotherapy as monotherapy or post-external beam radiotherapy boost for prostate cancer: technique, early toxicity, and PSA response. Int J Radiat Oncol Biol Phys. 2012 Jan 01; 82(1):228-34. Jabbari S, Weinberg VK, Kaprealian T, Hsu IC, Ma L, Chuang C, Descovich M, Shiao S, Shinohara K, Roach M, Gottschalk AR. PMID: 21183287.
      View in: PubMed   Mentions: 44     Fields:    Translation:Humans
    43. A dosimetric comparison between Gamma Knife and CyberKnife treatment plans for trigeminal neuralgia. J Neurosurg. 2010 Dec; 113 Suppl:199-206. Descovich M, Sneed PK, Barbaro NM, McDermott MW, Chuang CF, Barani IJ, Nakamura JL, Lijun M. PMID: 21222296.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    44. Apparatus-dependent dosimetric differences in spine stereotactic body radiotherapy. Technol Cancer Res Treat. 2010 Dec; 9(6):563-74. Ma L, Sahgal A, Cozzi L, Chang E, Shiu A, Letourneau D, Yin FF, Fogliata A, Kaissl W, Hyde D, Laperriere NJ, Shrieve DC, Larson DA. PMID: 21070078.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    45. Reirradiation human spinal cord tolerance for stereotactic body radiotherapy. Int J Radiat Oncol Biol Phys. 2012 Jan 01; 82(1):107-16. Sahgal A, Ma L, Weinberg V, Gibbs IC, Chao S, Chang UK, Werner-Wasik M, Angelov L, Chang EL, Sohn MJ, Soltys SG, Létourneau D, Ryu S, Gerszten PC, Fowler J, Wong CS, Larson DA. PMID: 20951503.
      View in: PubMed   Mentions: 63     Fields:    Translation:HumansPHPublic Health
    46. Assessment of variation in Elekta plastic spherical-calibration phantom and its impact on the Leksell Gamma Knife calibration. Med Phys. 2010 Sep; 37(9):5066-71. Novotny J, Bhatnagar JP, Chung HT, Johansson J, Bednarz G, Ma L, Huq MS. PMID: 20964226.
      View in: PubMed   Mentions: 3     Fields:    
    47. Prescription dose guideline based on physical criterion for multiple metastatic brain tumors treated with stereotactic radiosurgery. Int J Radiat Oncol Biol Phys. 2010 Oct 01; 78(2):605-8. Sahgal A, Barani IJ, Novotny J, Zhang B, Petti P, Larson DA, Ma L. PMID: 20472351.
      View in: PubMed   Mentions: 10     Fields:    Translation:HumansPHPublic Health
    48. Equivalence in dose fall-off for isocentric and nonisocentric intracranial treatment modalities and its impact on dose fractionation schemes. Int J Radiat Oncol Biol Phys. 2010 Mar 01; 76(3):943-8. Ma L, Sahgal A, Descovich M, Cho YB, Chuang C, Huang K, Laperriere NJ, Shrieve DC, Larson DA. PMID: 20159366.
      View in: PubMed   Mentions: 14     Fields:    Translation:HumansPHPublic Health
    49. Dose gradient near target-normal structure interface for nonisocentric CyberKnife and isocentric intensity-modulated body radiotherapy for prostate cancer. Int J Radiat Oncol Biol Phys. 2010 Sep 01; 78(1):58-63. Hossain S, Xia P, Huang K, Descovich M, Chuang C, Gottschalk AR, Roach M, Ma L. PMID: 20133073.
      View in: PubMed   Mentions: 16     Fields:    Translation:Humans
    50. Spinal cord tolerance for stereotactic body radiotherapy. Int J Radiat Oncol Biol Phys. 2010 Jun 01; 77(2):548-53. Sahgal A, Ma L, Gibbs I, Gerszten PC, Ryu S, Soltys S, Weinberg V, Wong S, Chang E, Fowler J, Larson DA. PMID: 19765914.
      View in: PubMed   Mentions: 60     Fields:    Translation:HumansPHPublic Health
    51. Task Group 142 report: quality assurance of medical accelerators. Med Phys. 2009 Sep; 36(9):4197-212. Klein EE, Hanley J, Bayouth J, Yin FF, Simon W, Dresser S, Serago C, Aguirre F, Ma L, Arjomandy B, Liu C, Sandin C, Holmes T, Task Group 142, American Association of Physicists in Medicine. PMID: 19810494.
      View in: PubMed   Mentions: 467     Fields:    Translation:Humans
    52. Nonrandom intrafraction target motions and general strategy for correction of spine stereotactic body radiotherapy. Int J Radiat Oncol Biol Phys. 2009 Nov 15; 75(4):1261-5. Ma L, Sahgal A, Hossain S, Chuang C, Descovich M, Huang K, Gottschalk A, Larson DA. PMID: 19647951.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    53. Advances in technology for intracranial stereotactic radiosurgery. Technol Cancer Res Treat. 2009 Aug; 8(4):271-80. Sahgal A, Ma L, Chang E, Shiu A, Larson DA, Laperriere N, Yin FF, Tsao M, Menard C, Basran P, Létourneau D, Heydarian M, Beachey D, Shukla V, Cusimano M, Hodaie M, Zadeh G, Bernstein M, Schwartz M. PMID: 19645520.
      View in: PubMed   Mentions: 26     Fields:    Translation:Humans
    54. A simple and effective method for validation and measurement of collimator output factors for Leksell Gamma Knife Perfexion. Phys Med Biol. 2009 Jun 21; 54(12):3897-907. Ma L, Kjäll P, Novotny J, Nordström H, Johansson J, Verhey L. PMID: 19491451.
      View in: PubMed   Mentions: 6     Fields:    
    55. Dynamic delivery of IMRT using an independent collimator: a model study. Phys Med Biol. 2009 Apr 21; 54(8):2527-39. Zhang Y, Hu Y, Ma L, Dai J. PMID: 19336843.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    56. Dynamic gamma knife radiosurgery. Phys Med Biol. 2009 Mar 21; 54(6):1579-91. Luan S, Swanson N, Chen Z, Ma L. PMID: 19229095.
      View in: PubMed   Mentions: 3     Fields:    
    57. Stereotactic body radiotherapy is effective salvage therapy for patients with prior radiation of spinal metastases. Int J Radiat Oncol Biol Phys. 2009 Jul 01; 74(3):723-31. Sahgal A, Ames C, Chou D, Ma L, Huang K, Xu W, Chin C, Weinberg V, Chuang C, Weinstein P, Larson DA. PMID: 19095374.
      View in: PubMed   Mentions: 62     Fields:    Translation:Humans
    58. Effect of composite sector collimation on average dose fall-off for Gamma Knife Perfexion. J Neurosurg. 2008 Dec; 109 Suppl:15-20. Ma L, Verhey L, Chuang C, Descovich M, Smith V, Huang K, McDermott M, Sneed P. PMID: 19123883.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    59. Whole-procedure clinical accuracy of gamma knife treatments of large lesions. Med Phys. 2008 Nov; 35(11):5110-4. Ma L, Chuang C, Descovich M, Petti P, Smith V, Verhey L. PMID: 19070245.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    60. Simulated real time image guided intrafraction tracking-delivery for hypofractionated prostate IMRT. Med Phys. 2008 Sep; 35(9):4041-8. Hossain S, Xia P, Chuang C, Verhey L, Gottschalk AR, Mu G, Ma L. PMID: 18841856.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    61. Intrafractional motion of the prostate during hypofractionated radiotherapy. Int J Radiat Oncol Biol Phys. 2008 Sep 01; 72(1):236-46. Xie Y, Djajaputra D, King CR, Hossain S, Ma L, Xing L. PMID: 18722274; PMCID: PMC2725181.
      View in: PubMed   Mentions: 92     Fields:    Translation:Humans
    62. Split-volume treatment planning of multiple consecutive vertebral body metastases for cyberknife image-guided robotic radiosurgery. Med Dosim. 2008; 33(3):175-9. Sahgal A, Chuang C, Larson D, Huang K, Petti P, Weinstein P, Ma L. PMID: 18674681.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    63. Effects of residual target motion for image-tracked spine radiosurgery. Med Phys. 2007 Nov; 34(11):4484-90. Chuang C, Sahgal A, Lee L, Larson D, Huang K, Petti P, Verhey L, Ma L. PMID: 18072513.
      View in: PubMed   Mentions: 15     Fields:    Translation:Humans
    64. Boosting central target dose by optimizing embedded dose hot spots for gamma knife radiosurgery. Stereotact Funct Neurosurg. 2007; 85(6):259-63. Ma L, Larson D, Petti P, Chuang C, Verhey L. PMID: 17709977.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    65. Treatments of exceptionally large prostate cancer patients with low-energy intensity-modulated photons. J Appl Clin Med Phys. 2006 Nov 28; 7(4):43-9. Sun M, Ma L. PMID: 17533352; PMCID: PMC5722392.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    66. Concomitant GRID boost for Gamma Knife radiosurgery. Med Phys. 2005 Nov; 32(11):3419-23. Ma L, Kwok Y, Chin LS, Simard JM, Regine WF. PMID: 16370428.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    67. A constrained tracking algorithm to optimize plug patterns in multiple isocenter gamma knife radiosurgery planning. Med Phys. 2005 Oct; 32(10):3132-5. Li K, Ma L. PMID: 16279066.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    68. Simultaneous integrated intensity-modulated radiotherapy boost for locally advanced gynecological cancer: radiobiological and dosimetric considerations. Int J Radiat Oncol Biol Phys. 2005 Jul 01; 62(3):933-9. Guerrero M, Li XA, Ma L, Linder J, Deyoung C, Erickson B. PMID: 15936580.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    69. Dosimetric properties of magnetically collimated electron beams for radiation therapy. Med Phys. 2004 Nov; 31(11):2973-7. Ma L. PMID: 15587649.
      View in: PubMed   Mentions:    Fields:    
    70. Selective source blocking for Gamma Knife radiosurgery of trigeminal neuralgia based on analytical dose modelling. Phys Med Biol. 2004 Aug 07; 49(15):3455-63. Li K, Ma L. PMID: 15379025.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansPHPublic Health
    71. Improving a scissor-action couch for conformal arc radiotherapy and radiosurgery. J Appl Clin Med Phys. 2004; 5(3):62-5. Li K, Yu CX, Ma L. PMID: 15753940; PMCID: PMC5723480.
      View in: PubMed   Mentions:    Fields:    
    72. Simultaneous minimizing monitor units and number of segments without leaf end abutment for segmental intensity modulated radiation therapy delivery. Med Phys. 2004 Mar; 31(3):507-12. Li K, Dai J, Ma L. PMID: 15070247.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    73. Magnetic collimation and metal foil filtering for electron range and fluence modulation. Med Phys. 2004 Jan; 31(1):17-23. Phaisangittisakul N, D'Souza WD, Ma L. PMID: 14761016.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    74. Concomitant boost of stratified target area with gamma knife radiosurgery: a treatment planning study. Am J Clin Oncol. 2003 Aug; 26(4):e100-5. Ma L, Chin LS, DiBiase SJ, Gullapalli R, Kennedy A, Simard JM, Slawson R. PMID: 12902906.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    75. A quality assurance method for analyzing and verifying intensity modulated fields. Med Phys. 2003 Aug; 30(8):2082-8. Ma L, Phaisangittisakul N, Yu CX, Sarfaraz M. PMID: 12945974.
      View in: PubMed   Mentions:    Fields:    
    76. A technique to sharpen the beam penumbra for Gamma Knife radiosurgery. Phys Med Biol. 2003 Jun 21; 48(12):1843-53. Guerrero M, Li XA, Ma L. PMID: 12870587.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    77. Smoothing intensity-modulated treatment delivery under hardware constraints. Med Phys. 2002 Dec; 29(12):2937-45. Ma L. PMID: 12512730.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    78. An empirical model for independent dose verification of the Gamma Knife treatment planning. Med Phys. 2002 Sep; 29(9):1991-7. Phaisangittisakul N, Ma L. PMID: 12349920.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    79. Clinical implementation of intensity-modulated arc therapy. Int J Radiat Oncol Biol Phys. 2002 Jun 01; 53(2):453-63. Yu CX, Li XA, Ma L, Chen D, Naqvi S, Shepard D, Sarfaraz M, Holmes TW, Suntharalingam M, Mansfield CM. PMID: 12023150.
      View in: PubMed   Mentions: 35     Fields:    Translation:HumansCTClinical Trials
    80. Influence of gamma knife radiosurgery on the quality of life in patients with brain metastases. Am J Clin Oncol. 2002 Apr; 25(2):131-4. DiBiase SJ, Chin LS, Ma L. PMID: 11943889.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    81. Optimized intensity-modulated arc therapy for prostate cancer treatment. Int J Cancer. 2001 Dec 20; 96(6):379-84. Ma L, Yu CX, Earl M, Holmes T, Sarfaraz M, Li XA, Shepard D, Amin P, DiBiase S, Suntharalingam M, Mansfield C. PMID: 11745509.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    82. Dependence of normal brain integral dose and normal tissue complication probability on the prescription isodose values for gamma-knife radiosurgery. Phys Med Biol. 2001 Nov; 46(11):3031-41. Ma L. PMID: 11720361.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    83. Monte Carlo dose verification for intensity-modulated arc therapy. Phys Med Biol. 2001 Sep; 46(9):2269-82. Li XA, Ma L, Naqvi S, Shih R, Yu C. PMID: 11580168.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    84. Radiation necrosis following gamma knife surgery: a case-controlled comparison of treatment parameters and long-term clinical follow up. J Neurosurg. 2001 Jun; 94(6):899-904. Chin LS, Ma L, DiBiase S. PMID: 11409517.
      View in: PubMed   Mentions: 50     Fields:    Translation:HumansPHPublic Health
    85. Inverse treatment planning for Gamma Knife radiosurgery. Med Phys. 2000 Dec; 27(12):2748-56. Shepard DM, Ferris MC, Ove R, Ma L. PMID: 11190958.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    86. Monte Carlo verification of IMRT dose distributions from a commercial treatment planning optimization system. Phys Med Biol. 2000 Sep; 45(9):2483-95. Ma CM, Pawlicki T, Jiang SB, Li JS, Deng J, Mok E, Kapur A, Xing L, Ma L, Boyer AL. PMID: 11008950.
      View in: PubMed   Mentions: 28     Fields:    Translation:Humans
    87. Dosimetric effects of patient displacement and collimator and gantry angle misalignment on intensity modulated radiation therapy. Radiother Oncol. 2000 Jul; 56(1):97-108. Xing L, Lin Z, Donaldson SS, Le QT, Tate D, Goffinet DR, Wolden S, Ma L, Boyer AL. PMID: 10869760.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    88. A dosimetric leaf-setting strategy for shaping radiation fields using a multileaf collimator. Med Phys. 2000 May; 27(5):972-7. Ma L, Yu C, Sarfaraz M. PMID: 10841399.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    89. The effect of user-defined variables on dosimetry consistency in Gamma Knife planning. Phys Med Biol. 2000 May; 45(5):N43-47. Ma L, Chin LS, Shepard D, Amin P, Slawson R. PMID: 10843114.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    90. An efficient method of measuring the 4 mm helmet output factor for the Gamma knife. Phys Med Biol. 2000 Mar; 45(3):729-33. Ma L, Li XA, Yu CX. PMID: 10730967.
      View in: PubMed   Mentions: 2     Fields:    
    91. An investigation of eye lens dose for gamma knife treatments of trigeminal neuralgia. J Appl Clin Med Phys. 2000; 1(4):116-9. Ma L, Chin L, Sarfaraz M, Shepard D, Yu C. PMID: 11674826; PMCID: PMC5726159.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansCTClinical Trials
    92. A dosimetric comparison of fan-beam intensity modulated radiotherapy with Gamma Knife stereotactic radiosurgery for treating intermediate intracranial lesions. Int J Radiat Oncol Biol Phys. 1999 Dec 01; 45(5):1325-30. Ma L, Xia P, Verhey LJ, Boyer AL. PMID: 10613329.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    93. Synchronizing dynamic multileaf collimators for producing two-dimensional intensity-modulated fields with minimum beam delivery time. Int J Radiat Oncol Biol Phys. 1999 Jul 15; 44(5):1147-54. Ma L, Boyer AL, Ma CM, Xing L. PMID: 10421549.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    94. Dosimetric verification of a commercial inverse treatment planning system. Phys Med Biol. 1999 Feb; 44(2):463-78. Xing L, Curran B, Hill R, Holmes T, Ma L, Forster KM, Boyer AL. PMID: 10070795.
      View in: PubMed   Mentions: 19     Fields:    Translation:Humans
    95. Application of a video-optical beam imaging system for quality assurance of medical accelerators. Phys Med Biol. 1998 Dec; 43(12):3649-59. Ma L, Boyer AL, Findley DO, Geis PB, Mok E. PMID: 9869039.
      View in: PubMed   Mentions: 2     Fields:    
    96. An optimized leaf-setting algorithm for beam intensity modulation using dynamic multileaf collimators. Phys Med Biol. 1998 Jun; 43(6):1629-43. Ma L, Boyer AL, Xing L, Ma CM. PMID: 9651030.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    97. Using static MLC fields to replace partial transmission cerrobend blocks in treatment planning of rectal carcinoma cases. Med Dosim. 1998; 23(4):264-6. Ma L, Chang W, Lau-Chin M, Tate EM, Boyer AL. PMID: 9863723.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    98. Quality assurance for dynamic multileaf collimator modulated fields using a fast beam imaging system. Med Phys. 1997 Aug; 24(8):1213-20. Ma L, Geis PB, Boyer AL. PMID: 9284242.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
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