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Ganesh Narayanasamy

TitleAssociate Professor
InstitutionUniversity of Arkansas for Medical Sciences
DepartmentRadiation Oncology, College of Medicine
DivisionRadiation Oncology Physics
Address4130 Sheffield
Mail Slot # 771
Little Rock AR 72205
Phone501-526-5929
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    Collapse Research 
    Collapse research activities and funding
    75N91020C00054     (NARAYANASAMY, GANESH)Dec 1, 2020 - Mar 15, 2022
    NIH/National Institutes of Health - Pass Through: Rejuvenix Technologies, LLC
    Localized treatment of solid tumors with radiation triggered liposomes
    Role: Principal Investigator
    R43AI155046     (BOERMA, MARJAN)Jul 1, 2020 - Jun 30, 2022
    NIH/Nat. Inst. of Allergy & Infectious Diseases - Pass Through: Nelson Scientific Labs, LLC
    Metabolomics Based Prediction of Delayed Effects of Acute Radiation Exposure
    Role: Co-Investigator
    P20GM109005     (BOERMA, MARJAN)Jun 24, 2015 - May 31, 2025
    NIH
    Center for Studies of Host Response to Cancer Therapy
    Role: Co-Investigator

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    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions. Don't see publications published under other names? Login to add alternative names.
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    1. T Frometa-Castillo, A Pyakuryal, G Narayanasamy. "Use of the Bayesian statistics and the product of probabilities in the ionizing radiation field”. Rad Phys Chem 217 111519, 2024. DOI: j.radphyschem.2024.111519. 2024; 217:111519.
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    2. Boria AJ, Narayanasamy G, Bimali M, Maraboyina S, Kalantari F, Sabouri P, Su Z. Cleaning the dose falloff with low modulation in SBRT lung plans. Biomed Phys Eng Express. 2023 05 04; 9(4). PMID: 37140156.
      View in: PubMed
    3. Petragallo R, Bertram P, Halvorsen P, Iftimia I, Low DA, Morin O, Narayanasamy G, Saenz DL, Sukumar KN, Valdes G, Weinstein L, Wells MC, Ziemer BP, Lamb JM. Development and multi-institutional validation of a convolutional neural network to detect vertebral body mis-alignments in 2D x-ray setup images. Med Phys. 2023 May; 50(5):2662-2671. PMID: 36908243.
      View in: PubMed
    4. Frometa-Castillo T, Pyakuryal A, Narayanasamy G, Mesbahi A, Wals-Zurita A. The use of the normal tissue non-complication probability (NTCP0) methodology as a new alternative of assessing side-effects in brachytherapy treatments. Rep Pract Oncol Radiother. 2022; 27(4):602-609. PMID: 36196423.
      View in: PubMed
    5. Nissen C, Ying J, Newkirk M, Narayanasamy G, Lewis G, Xia F. An Analysis of Risk Factors for Radiation Necrosis Following Cranial Radiation. Cureus. 2022 Sep; 14(9):e29268. PMID: 36133504.
      View in: PubMed
    6. Hammers J, Lindsay D, Narayanasamy G, Sud S, Tan X, Dooley J, Marks LB, Chen RC, Das SK, Mavroidis P. Evaluation of the clinical impact of the differences between planned and delivered dose in prostate cancer radiotherapy based on CT-on-rails IGRT and patient-reported outcome scores. J Appl Clin Med Phys. 2023 Jan; 24(1):e13780. PMID: 36087039.
      View in: PubMed
    7. Frometa-Castillo T, Pyakuryal A, Narayanasamy G, Wals-Zurita A, Mesbahi A. The use of the normal tissue non-complication probability (NTCP0) in the safety evaluations as a new alternative of assessing the side-effects of the radiation oncology treatments. Int J Radiat Biol. 2023; 99(4):656-662. PMID: 35930494.
      View in: PubMed
    8. Shrestha N, Narayanasamy G, Kalantari F, Sabouri P, Xia F, Zhong S. A phantom-based study and clinical implementation of brainlab's treatment planning system for radiosurgical treatments of arteriovenous malformations. Biomed Phys Eng Express. 2022 07 29; 8(5). PMID: 35856850.
      View in: PubMed
    9. Deshazer G, Narayanasamy G, Bimali M, Galhardo E, Kalantari F, Xia F, Pe?agar?cano J, Morrill S. A dosimetric comparative analysis of Brainlab elements and Eclipse RapidArc for spine SBRT treatment planning. Biomed Phys Eng Express. 2022 02 10; 8(2). PMID: 35086071.
      View in: PubMed
    10. Manavalan M, Durai M, Narayanasamy G, Stathakis S, Godson HF, Subramani V. Output factor measurements with multiple detectors in CyberKnife? Robotic Radiosurgery System. J Cancer Res Ther. 2021 Jul-Sep; 17(4):870-874. PMID: 34528534.
      View in: PubMed
    11. Desai D, Narayanasamy G, Bimali M, Cordrey I, Elasmar H, Srinivasan S, Johnson EL. Cleaning the dose falloff in lung SBRT plan. J Appl Clin Med Phys. 2021 Jan; 22(1):100-108. PMID: 33285036.
      View in: PubMed
    12. Johnsrud AJ, Jenkins SV, Jamshidi-Parsian A, Quick CM, Galhardo EP, Dings RPM, Vang KB, Narayanasamy G, Makhoul I, Griffin RJ. Evidence for Early Stage Anti-Tumor Immunity Elicited by Spatially Fractionated Radiotherapy-Immunotherapy Combinations. Radiat Res. 2020 12 01; 194(6):688-697. PMID: 33348372.
      View in: PubMed
    13. Bosse C, Narayanasamy G, Saenz D, Myers P, Kirby N, Rasmussen K, Mavroidis P, Papanikolaou N, Stathakis S. Dose Calculation Comparisons between Three Modern Treatment Planning Systems. J Med Phys. 2020 Jul-Sep; 45(3):143-147. PMID: 33487926.
      View in: PubMed
    14. Sadhukhan R, Majumdar D, Garg S, Landes RD, McHargue V, Pawar SA, Chowdhury P, Griffin RJ, Narayanasamy G, Boerma M, Dobretsov M, Hauer-Jensen M, Pathak R. Simultaneous exposure to chronic irradiation and simulated microgravity differentially alters immune cell phenotype in mouse thymus and spleen. Life Sci Space Res (Amst). 2021 Feb; 28:66-73. PMID: 33612181.
      View in: PubMed
    15. Veluvolu M, Patel M, Narayanasamy G, Kim T. Definitive single fraction stereotactic ablative radiotherapy for inoperable early-stage breast cancer: A case report. Rep Pract Oncol Radiother. 2020 Sep-Oct; 25(5):760-764. PMID: 32742200.
      View in: PubMed
    16. Alexandrian AN, Mavroidis P, Narayanasamy G, McConnell KA, Kabat CN, George RB, Defoor DL, Kirby N, Papanikolaou N, Stathakis S. Incorporating biological modeling into patient-specific plan verification. J Appl Clin Med Phys. 2020 Mar; 21(3):94-107. PMID: 32101368.
      View in: PubMed
    17. Narayanasamy G, Morrill S, Cousins D, Liu J, Deshazer G, Garner W, Galhardo E, Serletis D, Penagaricano J. Radiosurgery for mesial temporal lobe epilepsy following ROSE trial guidelines - A planning comparison between Gamma Knife, Eclipse, and Brainlab. J Appl Clin Med Phys. 2019 Oct; 20(10):134-141. PMID: 31532068.
      View in: PubMed
    18. Buchapudi RR, Manickam R, M R AK, C R TP, Chandraraj V, Pyakuryal A, Narayanasamy G. Physical and Radiobiological Evaluation of Accelerated Intensity Modulated Radiotherapy for Locally Advanced Head and Neck Cancer and Comparison with Short-Term Clinical Outcomes. Asian Pac J Cancer Prev. 2019 08 01; 20(8):2463-2470. PMID: 31450921.
      View in: PubMed
    19. Bergamo AM, Kauweloa K, Gan G, Shi Z, Daniels J, Crownover R, Narayanasamy G, Stathakis S, Mavroidis P, Papanikolaou N, Gutierrez A. Correlation between Biological Effective Dose and Radiation-induced Liver Disease from Hypofractionated Radiotherapy. J Med Phys. 2019 Jul-Sep; 44(3):185-190. PMID: 31576066.
      View in: PubMed
    20. Markovic M, Narayanasamy G, Stathakis S, Mavroidis P, Jurkovic IA, Saenz D, Papanikolaou N. Clinical Evaluation of a Two-dimensional Liquid-Filled Ion chamber Detector Array for Verification of High Modulation Small Fields in Radiotherapy. J Med Phys. 2019 Apr-Jun; 44(2):91-98. PMID: 31359926.
      View in: PubMed
    21. Stathakis S, Narayanasamy G, Licon AL, Myers P, Li Y, Crownover R, Papanikolaou N. A dosimetric comparison between volumetric-modulated arc therapy and dynamic conformal arc therapy in SBRT. J BUON. 2019 Mar-Apr; 24(2):838-843. PMID: 31128044.
      View in: PubMed
    22. Hussain SS, Huang SB, Bedolla RG, Rivas P, Basler JW, Swanson GP, Hui-Ming Huang T, Narayanasamy G, Papanikolaou N, Miyamoto H, Yeh IT, Reddick RL, Pollock BH, Ghosh R, Kumar AP. Suppression of ribosomal protein RPS6KB1 by Nexrutine increases sensitivity of prostate tumors to radiation. Cancer Lett. 2018 10 01; 433:232-241. PMID: 30003927.
      View in: PubMed
    23. Narayanasamy G, Desai D, Maraboyina S, Penagaricano J, Zwicker R, Johnson EL. A Dose Falloff Gradient Study in RapidArc Planning of Lung Stereotactic Body Radiation Therapy. J Med Phys. 2018 Jul-Sep; 43(3):147-154. PMID: 30305771.
      View in: PubMed
    24. Chao M, Wei J, Narayanasamy G, Yuan Y, Lo YC, Pe?agar?cano JA. Three-dimensional cluster formation and structure in heterogeneous dose distribution of intensity modulated radiation therapy. Radiother Oncol. 2018 May; 127(2):197-205. PMID: 29609805.
      View in: PubMed
    25. Narayanasamy G, Desai D, Morrill S, Zhang X, Galhardo E, Maraboyina S, Penagaricano J. Technical Note: A planning technique to lower normal tissue toxicity in lung SBRT plans based on two likely dependent RTOG metrics. Med Phys. 2018 May; 45(5):2325-2328. PMID: 29480933.
      View in: PubMed
    26. Zhang X, Rong Y, Morrill S, Fang J, Narayanasamy G, Galhardo E, Maraboyina S, Croft C, Xia F, Penagaricano J. Robust optimization in lung treatment plans accounting for geometric uncertainty. J Appl Clin Med Phys. 2018 May; 19(3):19-26. PMID: 29524301.
      View in: PubMed
    27. Narayanasamy G, Saenz DL, Defoor D, Papanikolaou N, Stathakis S. Dosimetric validation of Monaco treatment planning system on an Elekta VersaHD linear accelerator. J Appl Clin Med Phys. 2017 Nov; 18(6):123-129. PMID: 28944979.
      View in: PubMed
    28. Paudel NR, Narayanasamy G, Han EY, Penagaricano J, Mavroidis P, Zhang X, Pyakuryal A, Kim D, Liang X, Morrill S. Dosimetric and radiobiological comparison for quality assurance of IMRT and VMAT plans. J Appl Clin Med Phys. 2017 Sep; 18(5):237-244. PMID: 28771941.
      View in: PubMed
    29. Sharma S, Narayanasamy G, Clarkson R, Chao M, Moros EG, Zhang X, Yan Y, Boerma M, Paudel N, Morrill S, Corry P, Griffin RJ. Study of Image Qualities From 6D Robot-Based CBCT Imaging System of Small Animal Irradiator. Technol Cancer Res Treat. 2017 Dec; 16(6):811-818. PMID: 28355964.
      View in: PubMed
    30. Narayanasamy G, Zhang X, Meigooni A, Paudel N, Morrill S, Maraboyina S, Peacock L, Penagaricano J. Therapeutic benefits in grid irradiation on Tomotherapy for bulky, radiation-resistant tumors. Acta Oncol. 2017 Aug; 56(8):1043-1047. PMID: 28270018.
      View in: PubMed
    31. Zhang X, Penagaricano J, Narayanasamy G, Corry P, Liu T, Sanjay M, Paudel N, Morrill S. Helical tomotherapy to LINAC plan conversion utilizing RayStation Fallback planning. J Appl Clin Med Phys. 2017 Jan; 18(1):178-185. PMID: 28291935.
      View in: PubMed
    32. Narayanasamy G, Stathakis S, Gutierrez AN, Pappas E, Crownover R, Floyd JR, Papanikolaou N. A Systematic Analysis of 2 Monoisocentric Techniques for the Treatment of Multiple Brain Metastases. Technol Cancer Res Treat. 2017 10; 16(5):639-644. PMID: 27612917.
      View in: PubMed
    33. Narayanasamy G, Avila G, Mavroidis P, Papanikolaou N, Gutierrez A, Baacke D, Shi Z, Stathakis S. Comparison of composite prostate radiotherapy plan doses with dependent and independent boost phases. Australas Phys Eng Sci Med. 2016 Sep; 39(3):727-33. PMID: 27550442.
      View in: PubMed
    34. Sharma S, Narayanasamy G, Przybyla B, Webber J, Boerma M, Clarkson R, Moros EG, Corry PM, Griffin RJ. Advanced Small Animal Conformal Radiation Therapy Device. Technol Cancer Res Treat. 2017 02; 16(1):45-56. PMID: 26792490.
      View in: PubMed
    35. Narayanasamy G, Cruz W, Saenz DL, Stathakis S, Papanikolaou N, Kirby N. Effect of electron contamination on in vivo dosimetry for lung block shielding during TBI. J Appl Clin Med Phys. 2016 05 08; 17(3):486-491. PMID: 27167290.
      View in: PubMed
    36. Narayanasamy G, Saenz D, Cruz W, Ha CS, Papanikolaou N, Stathakis S. Commissioning an Elekta Versa HD linear accelerator. J Appl Clin Med Phys. 2016 01 08; 17(1):179-191. PMID: 26894351.
      View in: PubMed
    37. Saenz DL, Narayanasamy G, Cruz W, Papanikolaou N, Stathakis S. Pinnacle3 modeling and end-to-end dosimetric testing of a Versa HD linear accelerator with the Agility head and flattening filter-free modes. J Appl Clin Med Phys. 2016 01 08; 17(1):192-206. PMID: 26894352.
      View in: PubMed
    38. Stathakis S, Mavroidis P, Narayanasamy G, Markovic M, Myers P, Papanikolaou N. Stereotactic body radiation therapy patient specific quality assurance using a two-dimensional array at extended source to surface distance. J BUON. 2015 Jul-Aug; 20(4):1154-63. PMID: 26416070.
      View in: PubMed
    39. Narayanasamy G, Zalman T, Ha CS, Papanikolaou N, Stathakis S. Evaluation of Dosimetry Check software for IMRT patient-specific quality assurance. J Appl Clin Med Phys. 2015 May 08; 16(3):5427. PMID: 26103501.
      View in: PubMed
    40. Stathakis S, Mavroidis P, Shi C, Xu J, Kauweloa KI, Narayanasamy G, Papanikolaou N. ?+ index: A new evaluation parameter for quantitative quality assurance. Comput Methods Programs Biomed. 2014 Apr; 114(1):60-9. PMID: 24508212.
      View in: PubMed
    41. Narayanasamy G, Smith A, Van Meter E, McGarry R, Molloy JA. Total target volume is a better predictor of whole brain dose from gamma stereotactic radiosurgery than the number, shape, or location of the lesions. Med Phys. 2013 Sep; 40(9):091714. PMID: 24007147.
      View in: PubMed
    42. Narayanasamy G, LeCarpentier GL, Roubidoux M, Fowlkes JB, Schott AF, Carson PL. Spatial registration of temporally separated whole breast 3D ultrasound images. Med Phys. 2009 Sep; 36(9):4288-300. PMID: 19810503.
      View in: PubMed
    43. Narayanasamy G, Fowlkes JB, Kripfgans OD, Jacobson JA, De Maeseneer M, Schmitt RM, Carson PL. Ultrasound of the fingers for human identification using biometrics. Ultrasound Med Biol. 2008 Mar; 34(3):392-9. PMID: 17993241.
      View in: PubMed
    44. Narayanasamy G, LeCarpentier GL, Zabuawala S, Fowlkes JB, Roubidoux M, Sinha S, Carson PL. Non-rigid registration of three-dimensional (3D) grayscale and Doppler ultrasound breast images. Annu Int Conf IEEE Eng Med Biol Soc. 2007; 2007:91-4. PMID: 18001896.
      View in: PubMed
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