Indrin J Chetty

Summary

Affiliation: University of Nebraska Medical Center
Country: USA

Publications

  1. ncbi request reprint Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning
    Indrin J Chetty
    University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 34:4818-53. 2007
  2. ncbi request reprint Dose reconstruction in deforming lung anatomy: dose grid size effects and clinical implications
    Mihaela Rosu
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 32:2487-95. 2005
  3. ncbi request reprint The influence of beam model differences in the comparison of dose calculation algorithms for lung cancer treatment planning
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109 0010, USA
    Phys Med Biol 50:801-15. 2005
  4. ncbi request reprint Accounting for center-of-mass target motion using convolution methods in Monte Carlo-based dose calculations of the lung
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 31:925-32. 2004
  5. ncbi request reprint Reporting and analyzing statistical uncertainties in Monte Carlo-based treatment planning
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109 0010, USA
    Int J Radiat Oncol Biol Phys 65:1249-59. 2006
  6. ncbi request reprint Experimental verification of a Monte Carlo-based MLC simulation model for IMRT dose calculation
    Neelam Tyagi
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 34:651-63. 2007
  7. ncbi request reprint An anatomically realistic lung model for Monte Carlo-based dose calculations
    Liang Liang
    Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109 2104, USA
    Med Phys 34:1013-25. 2007
  8. ncbi request reprint Synchronized dynamic dose reconstruction
    Dale W Litzenberg
    University of Michigan, Ann Arbor Michigan 48109, USA
    Med Phys 34:91-102. 2007
  9. ncbi request reprint Monte Carlo-based lung cancer treatment planning incorporating PET-defined target volumes
    Indrin J Chetty
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    J Appl Clin Med Phys 6:65-76. 2005
  10. ncbi request reprint Enhanced spectral discrimination through the exploitation of interface effects in photon dose data
    Paule M Charland
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 31:264-76. 2004

Detail Information

Publications26

  1. ncbi request reprint Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning
    Indrin J Chetty
    University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 34:4818-53. 2007
    ....
  2. ncbi request reprint Dose reconstruction in deforming lung anatomy: dose grid size effects and clinical implications
    Mihaela Rosu
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 32:2487-95. 2005
    ....
  3. ncbi request reprint The influence of beam model differences in the comparison of dose calculation algorithms for lung cancer treatment planning
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109 0010, USA
    Phys Med Biol 50:801-15. 2005
    ..This may ultimately hinder our ability to accurately correlate dose with clinical outcome...
  4. ncbi request reprint Accounting for center-of-mass target motion using convolution methods in Monte Carlo-based dose calculations of the lung
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 31:925-32. 2004
    ..This increase is not unexpected considering that the target spends relatively more time at inhale as the asymmetry decreases (note that the treatment plans were generated using the exhale CT scans)...
  5. ncbi request reprint Reporting and analyzing statistical uncertainties in Monte Carlo-based treatment planning
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, MI 48109 0010, USA
    Int J Radiat Oncol Biol Phys 65:1249-59. 2006
    ..To investigate methods of reporting and analyzing statistical uncertainties in doses to targets and normal tissues in Monte Carlo (MC)-based treatment planning...
  6. ncbi request reprint Experimental verification of a Monte Carlo-based MLC simulation model for IMRT dose calculation
    Neelam Tyagi
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 34:651-63. 2007
    ..Various sources of uncertainties in these comparisons are discussed...
  7. ncbi request reprint An anatomically realistic lung model for Monte Carlo-based dose calculations
    Liang Liang
    Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109 2104, USA
    Med Phys 34:1013-25. 2007
    ..Future work with our model will involve patient motion, setup errors, and recommendations for the resolution of CT models...
  8. ncbi request reprint Synchronized dynamic dose reconstruction
    Dale W Litzenberg
    University of Michigan, Ann Arbor Michigan 48109, USA
    Med Phys 34:91-102. 2007
    ..These reconstructed dose fractions can then be combined to produce high-quality determinations of the dose distribution actually received to date, from which individualized adaptive treatment strategies can be determined...
  9. ncbi request reprint Monte Carlo-based lung cancer treatment planning incorporating PET-defined target volumes
    Indrin J Chetty
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    J Appl Clin Med Phys 6:65-76. 2005
    ..Further study with correlation to clinical outcome will be helpful in determining how to apply these various PET and CT volumes in treatment planning, to potentially improve local tumor control and reduce normal tissue toxicities...
  10. ncbi request reprint Enhanced spectral discrimination through the exploitation of interface effects in photon dose data
    Paule M Charland
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 31:264-76. 2004
    ..Consequently, we suggest that as part of a beam-commissioning methodology, designated electronic disequilibrium test cases be implemented in unambiguously determining the correct energy spectrum to be used...
  11. ncbi request reprint A fluence convolution method to account for respiratory motion in three-dimensional dose calculations of the liver: a Monte Carlo study
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 30:1776-80. 2003
    ....
  12. ncbi request reprint Implementation of the DPM Monte Carlo code on a parallel architecture for treatment planning applications
    Neelam Tyagi
    Department of Nuclear Engineering, The University of Michigan, Ann Arbor, Michigan 48109 2104, USA
    Med Phys 31:2721-5. 2004
    ..The phantom consists of layers of water, lung, bone, aluminum, and titanium. The agreement in the central axis depth dose curves and profiles at different depths shows that the serial and parallel codes are equivalent in accuracy...
  13. ncbi request reprint A proposed alternative to phase-space recycling using the adaptive kernel density estimator method
    Neelam Tyagi
    The University of Michigan Department of Nuclear Engineering and Radiological Sciences, Ann Arbor, Michigan 48109 2104, USA
    Med Phys 33:553-60. 2006
    ..AKDE calculated depth doses and profiles were within 2% and 2%/1 mm, respectively, of those computed using PS recycling...
  14. ncbi request reprint A pilot study of [18F]fluorodeoxyglucose positron emission tomography scans during and after radiation-based therapy in patients with non small-cell lung cancer
    Feng Ming Spring Kong
    Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA
    J Clin Oncol 25:3116-23. 2007
    ..To study whether changes of [18F]fluorodeoxyglucose positron emission tomography (FDG-PET) during treatment correlate with post-treatment responses in tumor and normal lung in patients with non-small-cell lung cancer (NSCLC)...
  15. doi request reprint ACR Appropriateness Criteria® radiation therapy for small-cell lung cancer
    Feng Ming Kong
    Ann Arbor Veteran Affairs Medical Center, University of Michigan, Ann Arbor, MI, USA
    Am J Clin Oncol 36:206-13. 2013
    ..In those instances where evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment...
  16. ncbi request reprint Photon beam relative dose validation of the DPM Monte Carlo code in lung-equivalent media
    Indrin J Chetty
    The University of Michigan, Department of Radiation Oncology, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 30:563-73. 2003
    ..This work demonstrates that the DPM Monte Carlo code is capable of accurate photon beam dose calculations in situations where lateral electron disequilibrium effects are pronounced...
  17. pmc Quantifying the interplay effect in prostate IMRT delivery using a convolution-based method
    Haisen S Li
    Department of Radiation Oncology, University of Nebraska Medical Center, Omaha, Nebraska 68198 7521, USA
    Med Phys 35:1703-10. 2008
    ..3%, in single fraction plans. For entire treatment courses delivered in either a hypofractionated (five fractions) or conventional (> 30 fractions) regimen, the discrepancy in total dose due to interplay effect was negligible...
  18. ncbi request reprint Experimental verification and clinical implementation of a commercial Monte Carlo electron beam dose calculation algorithm
    Margarida Fragoso
    University of Nebraska Medical Center, Omaha, Nebraska 68198 7521, USA
    Med Phys 35:1028-38. 2008
    ..3 cm. Timing values ranged from 2 min to 24.5 h, depending on the field size, beam energy, number, and thickness of computed tomography slices used to define the patient's anatomy for the overall uncertainty values mentioned above...
  19. doi request reprint Dosimetric consequences of intrafraction prostate motion
    Haisen S Li
    Department of Radiation Oncology, University of Nebraska Medical Center, Omaha, NE, USA
    Int J Radiat Oncol Biol Phys 71:801-12. 2008
    ..To analyze characteristics of intrafraction prostate motion, monitored using the Calypso system, and investigate dosimetric consequences of the motion for different clinical target volume (CTV) to planning target volume (PTV) margins...
  20. ncbi request reprint Experimental validation of the DPM Monte Carlo code using minimally scattered electron beams in heterogeneous media
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor 48109 0010, USA
    Phys Med Biol 47:1837-51. 2002
    ....
  21. ncbi request reprint Benchmarking of the dose planning method (DPM) Monte Carlo code using electron beams from a racetrack microtron
    Indrin J Chetty
    The University of Michigan, Department of Radiation Oncology, Ann Arbor 48109 0010, USA
    Med Phys 29:1035-41. 2002
    ..The accuracy of the DPM code illustrated in this work suggests that DPM may be used as a valuable tool for electron beam dose calculations...
  22. ncbi request reprint The impact of breathing motion versus heterogeneity effects in lung cancer treatment planning
    Mihaela Rosu
    Department of Radiation Oncology, The University of Michigan, Ann Arbor Michigan 48109 0010, USA
    Med Phys 34:1462-73. 2007
    ..AP/PA versus 3D-CRT. Given a properly designed ITV, tissue heterogeneity effects are likely to have a larger clinical significance on tumor and normal lung treatment evaluation metrics than four-dimensional respiratory-induced changes...
  23. ncbi request reprint A Monte Carlo based phase space model for quality assurance of intensity modulated radiotherapy incorporating leaf specific characteristics
    Randi F Aaronson
    Department of Radiation Oncology, University of California, Los Angeles, California 90095 6951, USA
    Med Phys 29:2952-8. 2002
    ..53 criteria for all benchmark fields used. Film dosimetry was used to evaluate the model for IMRT sequences and plans, and the ability of the model to account for leaf sequencing effects is also demonstrated...
  24. ncbi request reprint How extensive of a 4D dataset is needed to estimate cumulative dose distribution plan evaluation metrics in conformal lung therapy?
    Mihaela Rosu
    The University of Michigan, Department of Radiation Oncology, Ann Arbor Michigan 48109 0010, USA
    Med Phys 34:233-45. 2007
    ....
  25. ncbi request reprint Dosimetric comparison of extended dose range film with ionization measurements in water and lung equivalent heterogeneous media exposed to megavoltage photons
    Paule M Charland
    Department of Radiation Oncology, The University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    J Appl Clin Med Phys 4:25-39. 2003
    ..From this investigation EDR film appears to be a useful medium for relative dosimetry in higher dose ranges in both water and lung equivalent material for moderate field sizes and depths...
  26. ncbi request reprint Investigation of Kodak extended dose range (EDR) film for megavoltage photon beam dosimetry
    Indrin J Chetty
    Department of Radiation Oncology, The University of Michigan, Ann Arbor 48109 0010, USA
    Phys Med Biol 47:3629-41. 2002
    ..The results of this study indicate that Kodak EDR film may be a useful tool for relative dosimetry at higher dose ranges...