Larry Antonuk

Summary

Affiliation: University of Michigan
Country: USA

Publications

  1. ncbi request reprint Megavoltage imaging with a large-area, flat-panel, amorphous silicon imager
    L E Antonuk
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor 48109, USA
    Int J Radiat Oncol Biol Phys 36:661-72. 1996
  2. ncbi request reprint Strategies to improve the signal and noise performance of active matrix, flat-panel imagers for diagnostic x-ray applications
    L E Antonuk
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor 48109, USA
    Med Phys 27:289-306. 2000
  3. ncbi request reprint Electronic portal imaging devices: a review and historical perspective of contemporary technologies and research
    Larry E Antonuk
    Department of Radiation Oncology, University of Michigan, Ann Arbor 48109 0010, USA
    Phys Med Biol 47:R31-65. 2002
  4. pmc An investigation of signal performance enhancements achieved through innovative pixel design across several generations of indirect detection, active matrix, flat-panel arrays
    Larry E Antonuk
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 36:3322-39. 2009
  5. ncbi request reprint Segmented phosphors: MEMS-based high quantum efficiency detectors for megavoltage x-ray imaging
    Amit Sawant
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48103, USA
    Med Phys 32:553-65. 2005
  6. ncbi request reprint Systematic investigation of the signal properties of polycrystalline HgI2 detectors under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions
    Zhong Su
    Department of Radiation Oncology, University of Michigan, 519 W William St, Argus Building 1, Ann Arbor, MI 48103 4943, USA
    Phys Med Biol 50:2907-28. 2005
  7. pmc Active pixel imagers incorporating pixel-level amplifiers based on polycrystalline-silicon thin-film transistors
    Youcef El-Mohri
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan 48109 USA
    Med Phys 36:3340-55. 2009
  8. pmc A Monte Carlo investigation of Swank noise for thick, segmented, crystalline scintillators for radiotherapy imaging
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 36:3227-38. 2009
  9. pmc Quality assurance for kilo- and megavoltage in-room imaging and localization for off- and online setup error correction
    James M Balter
    Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA
    Int J Radiat Oncol Biol Phys 71:S48-52. 2008
  10. pmc Monte Carlo investigations of megavoltage cone-beam CT using thick, segmented scintillating detectors for soft tissue visualization
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 35:145-58. 2008

Collaborators

Detail Information

Publications21

  1. ncbi request reprint Megavoltage imaging with a large-area, flat-panel, amorphous silicon imager
    L E Antonuk
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor 48109, USA
    Int J Radiat Oncol Biol Phys 36:661-72. 1996
    ..Specific limitations in the engineering prototype are reviewed and potential advantages of future, more optimized imagers of this type are presented...
  2. ncbi request reprint Strategies to improve the signal and noise performance of active matrix, flat-panel imagers for diagnostic x-ray applications
    L E Antonuk
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor 48109, USA
    Med Phys 27:289-306. 2000
    ....
  3. ncbi request reprint Electronic portal imaging devices: a review and historical perspective of contemporary technologies and research
    Larry E Antonuk
    Department of Radiation Oncology, University of Michigan, Ann Arbor 48109 0010, USA
    Phys Med Biol 47:R31-65. 2002
    ..Finally, a survey of contemporary research efforts focused on improving portal imaging performance by addressing various weaknesses in existing commercial systems is presented...
  4. pmc An investigation of signal performance enhancements achieved through innovative pixel design across several generations of indirect detection, active matrix, flat-panel arrays
    Larry E Antonuk
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 36:3322-39. 2009
    ....
  5. ncbi request reprint Segmented phosphors: MEMS-based high quantum efficiency detectors for megavoltage x-ray imaging
    Amit Sawant
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48103, USA
    Med Phys 32:553-65. 2005
    ....
  6. ncbi request reprint Systematic investigation of the signal properties of polycrystalline HgI2 detectors under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions
    Zhong Su
    Department of Radiation Oncology, University of Michigan, 519 W William St, Argus Building 1, Ann Arbor, MI 48103 4943, USA
    Phys Med Biol 50:2907-28. 2005
    ....
  7. pmc Active pixel imagers incorporating pixel-level amplifiers based on polycrystalline-silicon thin-film transistors
    Youcef El-Mohri
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan 48109 USA
    Med Phys 36:3340-55. 2009
    ..However, faster readout rates, coupled with implementation of multiple sampling protocols allowed by the nondestructive nature of pixel readout, resulted in a significantly lower noise level of approximately 560 e (rms) for PSI-3...
  8. pmc A Monte Carlo investigation of Swank noise for thick, segmented, crystalline scintillators for radiotherapy imaging
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 36:3227-38. 2009
    ....
  9. pmc Quality assurance for kilo- and megavoltage in-room imaging and localization for off- and online setup error correction
    James M Balter
    Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA
    Int J Radiat Oncol Biol Phys 71:S48-52. 2008
    ..The paradigms for quality assurance of radiograph-based positioning include imager performance, systems integration, infrastructure, procedure documentation and testing, and support for positioning strategy implementation...
  10. pmc Monte Carlo investigations of megavoltage cone-beam CT using thick, segmented scintillating detectors for soft tissue visualization
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 35:145-58. 2008
    ....
  11. pmc Performance evaluation of polycrystalline HgI2 photoconductors for radiation therapy imaging
    Qihua Zhao
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48019, USA
    Med Phys 37:2738-48. 2010
    ....
  12. ncbi request reprint An Active Matrix Flat Panel Dosimeter (AMFPD) for in-phantom dosimetric measurements
    Jean M Moran
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109 0010, USA
    Med Phys 32:466-72. 2005
    ..The device also compares well to film for 2-D planar dose distributions. It is expected that the AMFPD system will be useful for beam commissioning, algorithm verification test data, and routine IMRT quality assurance dosimetry...
  13. ncbi request reprint Performance of a high fill factor, indirect detection prototype flat-panel imager for mammography
    Youcef El-Mohri
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor Michigan 48109, USA
    Med Phys 34:315-27. 2007
    ..Finally, such calculations were used to predict potential DQE performance for hypothetical 50 microm pixel pitch imagers, employing similar continuous photodiode design and realistic inputs derived from the empirical measurements...
  14. ncbi request reprint System performance of a prototype flat-panel imager operated under mammographic conditions
    Kyung Wook Jee
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan 48109, USA
    Med Phys 30:1874-90. 2003
    ..In this study, we provide an example of how cascaded systems modeling can be used to identify factors limiting system performance and to examine trade-offs between factors toward the goal of maximizing performance...
  15. ncbi request reprint Segmented crystalline scintillators: empirical and theoretical investigation of a high quantum efficiency EPID based on an initial engineering prototype CsI(TI) detector
    Amit Sawant
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48103, USA
    Med Phys 33:1053-66. 2006
    ....
  16. ncbi request reprint Segmented crystalline scintillators: an initial investigation of high quantum efficiency detectors for megavoltage x-ray imaging
    Amit Sawant
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48105, USA
    Med Phys 32:3067-83. 2005
    ....
  17. ncbi request reprint Slit design for efficient and accurate MTF measurement at megavoltage x-ray energies
    Amit Sawant
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48103, USA
    Med Phys 34:1535-45. 2007
    ..Furthermore, the theoretical results suggest that it may be possible to achieve even further reductions in slit thickness without compromising measurement accuracy...
  18. pmc Monte Carlo investigations of the effect of beam divergence on thick, segmented crystalline scintillators for radiotherapy imaging
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, USA
    Phys Med Biol 55:3659-73. 2010
    ..For thicker scintillators, the area that is relatively unaffected is significantly reduced, requiring a focused scintillator geometry in order to preserve spatial resolution, and thus DQE...
  19. ncbi request reprint Performance of a direct-detection active matrix flat panel dosimeter (AMFPD) for IMRT measurements
    Yu Chen
    Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109, USA
    Med Phys 34:4911-22. 2007
    ....
  20. pmc Investigation of the signal behavior at diagnostic energies of prototype, direct detection, active matrix, flat-panel imagers incorporating polycrystalline HgI2
    Hong Du
    Department of Radiation Oncology, University of Michigan Medical Center, Ann Arbor, Michigan 48109, USA
    Phys Med Biol 53:1325-51. 2008
    ..While the results of the current study are promising, further development will be required to realize prototypes exhibiting the characteristics necessary to allow practical implementation of this approach...
  21. pmc High-DQE EPIDs based on thick, segmented BGO and CsI:Tl scintillators: performance evaluation at extremely low dose
    Yi Wang
    Department of Radiation Oncology, University of Michigan, Ann Arbor Michigan 48109, USA
    Med Phys 36:5707-18. 2009
    ..In order to significantly improve DQE, the authors are investigating thick, segmented scintillators, consisting of 2D matrices of scintillating crystals separated by septal walls...

Research Grants31

  1. HYBRID, FLAT-PANEL, ACTIVE MATRIX MAMMOGRAPHIC IMAGER
    Larry Antonuk; Fiscal Year: 2001
    ....
  2. ADVANCED TECHNOLOGY FLAT PANEL IMAGER FOR FLUOROSCOPY
    Larry Antonuk; Fiscal Year: 2001
    ..The successful development of a technology exhibiting these performance levels could have a profound impact on digital radiology. ..
  3. A High Quantum Efficiency Flat Panel Radiotherapy Imager
    Larry Antonuk; Fiscal Year: 2004
    ....
  4. An Advanced Technology Flat-Panel Imager for Fluoroscopy
    Larry Antonuk; Fiscal Year: 2004
    ..The development of technologies exhibiting such performance levels could have a profound impact on digital radiology. ..
  5. A High Quantum Efficiency Flat-Panel Radiotherapy Imager
    Larry Antonuk; Fiscal Year: 2007
    ....
  6. A High Quantum Efficiency Flat-Panel Radiotherapy Imager
    Larry Antonuk; Fiscal Year: 2009
    ....
  7. MASDA-X A FLAT PANEL IMAGER FOR DIGITAL FLUOROSCOPY
    Larry Antonuk; Fiscal Year: 1993
    ..Undoubtedly, this technology will result in improvement of existing and the creation of new radiologic techniques ultimately resulting in better care for patients...
  8. CLINICAL, REAL-TIME A-SI:H RADIOTHERAPY PORTAL IMAGERY
    Larry Antonuk; Fiscal Year: 1993
    ..With such attributes, the imager will provide the first example of a new generation of portal imagers which will serve as a powerful new tool in the difficult problem of radiotherapy treatment verification...
  9. MASDA, AN AMORPHOUS SILICON IMAGER FOR RADIOTHERAPY
    Larry Antonuk; Fiscal Year: 1992
    ..As a result of this project, it will be possible to construct a full-size imaging devise with a ~50x50 cm2 detection surface using the prototype MASDA sensor panels...
  10. An Advanced Technology Flat-Panel Imager for Fluoroscopy
    Larry E Antonuk; Fiscal Year: 2010
    ....