Aldo Badano

Summary

Affiliation: Food and Drug Administration
Country: USA

Publications

  1. ncbi request reprint Modeling the bidirectional reflectance of emissive displays
    Aldo Badano
    Center for Devices and Radiological Health, US Food and Drug Administration, Rockville, Maryland 20857, USA
    Appl Opt 41:3847-52. 2002
  2. ncbi request reprint Comparison of conoscopic, telescopic, and goniometric methods for measuring angular emissions from medical liquid-crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, Rockville, Maryland 20857, USA
    Appl Opt 43:4999-5005. 2004
  3. ncbi request reprint AAPM/RSNA tutorial on equipment selection: PACS equipment overview: display systems
    Aldo Badano
    Office of Science and Technology, Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Pkwy, HFZ 142, Rockville, MD 20857, USA
    Radiographics 24:879-89. 2004
  4. ncbi request reprint Noise in flat-panel displays with subpixel structure
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 31:715-23. 2004
  5. ncbi request reprint Angular dependence of the luminance and contrast in medical monochrome liquid crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 30:2602-13. 2003
  6. pmc A fast, angle-dependent, analytical model of CsI detector response for optimization of 3D x-ray breast imaging systems
    Melanie Freed
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993 0002, USA
    Med Phys 37:2593-605. 2010
  7. ncbi request reprint Anisotropic imaging performance in breast tomosynthesis
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, Maryland 20993, USA
    Med Phys 34:4076-91. 2007
  8. ncbi request reprint Anisotropic imaging performance in indirect x-ray imaging detectors
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Labs, Center for Devices and Radiological Health, U S Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 33:2698-713. 2006
  9. doi request reprint Spatiotemporal Monte Carlo transport methods in x-ray semiconductor detectors: application to pulse-height spectroscopy in a-Se
    Yuan Fang
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland 20993 0002, USA
    Med Phys 39:308-19. 2012
  10. pmc Singular value description of a digital radiographic detector: theory and measurements
    Iacovos S Kyprianou
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging Systems, US Food and Drug Administration, New Hampshire Avenue, Silver Spring, Maryland 20993, USA
    Med Phys 35:4744-56. 2008

Detail Information

Publications35

  1. ncbi request reprint Modeling the bidirectional reflectance of emissive displays
    Aldo Badano
    Center for Devices and Radiological Health, US Food and Drug Administration, Rockville, Maryland 20857, USA
    Appl Opt 41:3847-52. 2002
    ..I show that emissive FPDs with thin-film organic layers on reflective substrates can exhibit a predominant specular peak broadened by short-range light scattering...
  2. ncbi request reprint Comparison of conoscopic, telescopic, and goniometric methods for measuring angular emissions from medical liquid-crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, Rockville, Maryland 20857, USA
    Appl Opt 43:4999-5005. 2004
    ..This shift in the minimum luminance measurement translates directly into the contrast ratio, affecting the reporting of technical specifications of display systems...
  3. ncbi request reprint AAPM/RSNA tutorial on equipment selection: PACS equipment overview: display systems
    Aldo Badano
    Office of Science and Technology, Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Pkwy, HFZ 142, Rockville, MD 20857, USA
    Radiographics 24:879-89. 2004
    ..In addition to display reflectance, the contrast of medical AMLCDs is affected by crosstalk and by variations of the luminance at off-normal viewing angles...
  4. ncbi request reprint Noise in flat-panel displays with subpixel structure
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 31:715-23. 2004
    ....
  5. ncbi request reprint Angular dependence of the luminance and contrast in medical monochrome liquid crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 30:2602-13. 2003
    ..The changes due to off-normal viewing are substantial at large angles in the horizontal and vertical directions, and much worse in the diagonal viewing directions...
  6. pmc A fast, angle-dependent, analytical model of CsI detector response for optimization of 3D x-ray breast imaging systems
    Melanie Freed
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993 0002, USA
    Med Phys 37:2593-605. 2010
    ..As a result, there is a need for detector blur models that can be rapidly generated...
  7. ncbi request reprint Anisotropic imaging performance in breast tomosynthesis
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, Maryland 20993, USA
    Med Phys 34:4076-91. 2007
    ....
  8. ncbi request reprint Anisotropic imaging performance in indirect x-ray imaging detectors
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Labs, Center for Devices and Radiological Health, U S Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, Maryland 20857, USA
    Med Phys 33:2698-713. 2006
    ....
  9. doi request reprint Spatiotemporal Monte Carlo transport methods in x-ray semiconductor detectors: application to pulse-height spectroscopy in a-Se
    Yuan Fang
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland 20993 0002, USA
    Med Phys 39:308-19. 2012
    ....
  10. pmc Singular value description of a digital radiographic detector: theory and measurements
    Iacovos S Kyprianou
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging Systems, US Food and Drug Administration, New Hampshire Avenue, Silver Spring, Maryland 20993, USA
    Med Phys 35:4744-56. 2008
    ..Discussion is made about the benefits of the H matrix technique with regards to signal detection theory, and the characterization of shift-variant imaging systems...
  11. pmc Visual assessment of angular response in medical liquid crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, U S Food and Drug Administration, 12720 Twinbrook Parkway, Rockville, MD 20857, USA
    J Digit Imaging 19:240-8. 2006
    ..We found that this procedure offers the end user of displays a simple, fast, and relatively consistent technique to verify that the viewing angle performance of the display device is within certain acceptable limits...
  12. ncbi request reprint Detectability decreases with off-normal viewing in medical liquid crystal displays
    Aldo Badano
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging, Center for Devices and Radiological Health, Food and Drug Administration, Rockville, MD 20857, USA
    Acad Radiol 13:210-8. 2006
    ..To quantify the reduction in detection performance of subtle signals at off-normal viewing directions in medical active-matrix liquid crystal displays (AMLCDs)...
  13. pmc Experimental validation of Monte Carlo (MANTIS) simulated x-ray response of columnar CsI scintillator screens
    Melanie Freed
    CDRH NIBIB Laboratory for the Assessment of Medical Imaging Systems, Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993 0002, USA
    Med Phys 36:4944-56. 2009
    ..Whereas previous validation efforts have focused on matching of summary statistics, in this work the authors examine the complete point response function (PRF) of the detector system in addition to relative light output values...
  14. ncbi request reprint Accurate color measurement methods for medical displays
    Anindita Saha
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug, 10903 New Hampshire Avenue, WO 62 3116, Silver Spring, Maryland 20993, USA
    Med Phys 37:74-81. 2010
    ..They compare three probe designs: A modified small-spot luminance probe and two conic probe designs based on black frusta...
  15. ncbi request reprint An energy- and depth-dependent model for x-ray imaging
    Brandon D Gallas
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging Systems, Rockville, Maryland 20857, USA
    Med Phys 31:3132-49. 2004
    ..In our results, the impact of fill factor is between these extremes, and depends on the diameter of the signal...
  16. pmc Development and characterization of a dynamic lesion phantom for the quantitative evaluation of dynamic contrast-enhanced MRI
    Melanie Freed
    Center for Devices and Radiological Health, U S Food and Drug Administration, Silver Spring, MD, USA
    Med Phys 38:5601-11. 2011
    ..The objective of this phantom is to provide a platform for the quantitative comparison of DCE-MRI protocols to aid in the standardization and optimization of breast DCE-MRI...
  17. ncbi request reprint MANTIS: combined x-ray, electron and optical Monte Carlo simulations of indirect radiation imaging systems
    Aldo Badano
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging Systems, 12720 Twinbrook Parkway, HFZ 142, Rockville, MD 20857, USA
    Phys Med Biol 51:1545-61. 2006
    ..We demonstrate the capabilities of this new tool with respect to the statistics of the optical signal detected and to the three-dimensional point-response functions corresponding to columnar phosphor screens...
  18. ncbi request reprint Temporal response of medical liquid crystal displays
    Hongye Liang
    CDRH NIBIB Laboratory for the Assessment of Medical Imaging Systems, Food and Drug Administration, 12720 Twinbrook Parkway HFZ 142, Rockville, Maryland 20857, USA
    Med Phys 34:639-46. 2007
    ..We also found that LCD response time depends on temperature, with 1 h warm-up reducing the response time by a factor of 2...
  19. doi request reprint X-ray properties of an anthropomorphic breast phantom for MRI and x-ray imaging
    Melanie Freed
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993 0002, USA
    Phys Med Biol 56:3513-33. 2011
    ....
  20. ncbi request reprint Goniometric and conoscopic measurements of angular display contrast for one-, three-, five-, and nine-million-pixel medical liquid crystal displays
    Aldo Badano
    Center for Devices and Radiological Health, Food and Drug Administration, Rockville, Maryland 20857, USA
    Med Phys 31:3452-60. 2004
    ..Additionally, we show that the measured contrast can be significantly affected by the measurement method used to record the angular change in luminance...
  21. pmc Effect of viewing angle on luminance and contrast for a five-million-pixel monochrome display and a nine-million-pixel color liquid crystal display
    Dipesh H Fifadara
    Center for Devices and Radiological Health, Food and Drug Administration, Rockville, Maryland 20857, USA
    J Digit Imaging 17:264-70. 2004
    ..The 9 MP shows lower variance in contrast with changes in viewing angle, whereas the 5 MP provides a slightly better GSDF compliance for off-normal viewing...
  22. doi request reprint Incorporating human contrast sensitivity in model observers for detection tasks
    Subok Park
    NIBIB CDRH Laboratory for the Assessment of Medical Imaging System, Division of Imaging and Applied Mathematics, Center for Devices and Radiological Health, Food and Drug Administration, White Oak, MD 20993, USA
    IEEE Trans Med Imaging 28:339-47. 2009
    ..Our results show that the CS-CHO predicts human performance well as a function of signal intensity...
  23. doi request reprint hybridMANTIS: a CPU-GPU Monte Carlo method for modeling indirect x-ray detectors with columnar scintillators
    Diksha Sharma
    Center for Devices and Radiological Health, Food and Drug Administration, 10903 New Hampshire Ave, Silver Spring, MD 20993, USA
    Phys Med Biol 57:2357-72. 2012
    ..The new code requires much less memory than MANTIS and, asa result, allows us to efficiently simulate large area detectors...
  24. ncbi request reprint Lubberts effect in columnar phosphors
    Aldo Badano
    Laboratory for the Assessment of Medical Imaging Systems, Center for Devices and Radiological Health FDA and National Institute of Biomedical Imaging and Bioengineering NIH, Rockville, Maryland 20857, USA
    Med Phys 31:3122-31. 2004
    ..We find that the Lubberts fraction of a 85 microm granular screen model corresponding to a Gd2O2S:Tb screen is similar to the fraction for a 100 microm columnar CsI:Tl screen...
  25. pmc An anthropomorphic phantom for quantitative evaluation of breast MRI
    Melanie Freed
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, U S Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993, USA
    Med Phys 38:743-53. 2011
    ..Quantitative comparisons between patient and phantom image properties are presented...
  26. ncbi request reprint Oblique incidence effects in direct x-ray detectors: a first-order approximation using a physics-based analytical model
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, FDA, Silver Spring, Maryland 20993, USA
    Med Phys 38:2095-8. 2011
    ..This first-order approximation analysis allows the authors to describe the associated degradation in resolution in direct detectors and compare the predictions to the published data for indirect detectors...
  27. doi request reprint Observer variability in the interpretation of HER2/neu immunohistochemical expression with unaided and computer-aided digital microscopy
    Marios A Gavrielides
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland 20993, USA
    Arch Pathol Lab Med 135:233-42. 2011
    ..A reduction in observer variability using computer aids could enhance the statistical power of studies designed to determine the utility of new biomarkers and accelerate their incorporation in clinical practice...
  28. doi request reprint Validation of columnar CsI x-ray detector responses obtained with hybridMANTIS, a CPU-GPU Monte Carlo code for coupled x-ray, electron, and optical transport
    Diksha Sharma
    Division of Imaging and Applied Mathematics, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, Maryland 20993, USA
    Med Phys 40:031907. 2013
    ..hybridMANTIS is a Monte Carlo package for modeling indirect x-ray imagers using columnar geometry based on a hybrid concept that maximizes the utilization of available CPU and graphics processing unit processors in a workstation...
  29. ncbi request reprint Predicting perceived image quality: a critique of Lin and Kuo (2011)
    Aldo Badano
    Division of Imaging and Applied Mathematics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, FDA, Silver Spring, Maryland 20993, USA
    Percept Mot Skills 114:236-8. 2012
    ....
  30. doi request reprint Image browsing in slow medical liquid crystal displays
    Hongye Liang
    CDRH NIBIB Laboratory for the Assessment of Medical Imaging Systems, Division of Imaging and Applied Mathematics, U S Food and Drug Administration, 10903 New Hampshire Avenue, Building 62, Room 3113, Silver Spring, MD 20993, USA
    Acad Radiol 15:370-82. 2008
    ..In this framework, the slow temporal response of liquid crystal displays (LCDs) can compromise the image quality when the images are browsed in a fast sequence...
  31. ncbi request reprint Assessment of display performance for medical imaging systems: executive summary of AAPM TG18 report
    Ehsan Samei
    Duke Advanced Imaging Laboratories, Department of Radiology, Duke University, DUMC 3302, Durham, North Carolina 27710, USA
    Med Phys 32:1205-25. 2005
    ..01 for primary displays. The report offers further descriptions of prior standardization efforts, current display technologies, testing prerequisites, streamlined procedures and timelines, and TG18 test patterns...
  32. ncbi request reprint AAPM/RSNA tutorial on equipment selection: PACS equipment overview: general guidelines for purchasing and acceptance testing of PACS equipment
    Ehsan Samei
    Department of Radiology, Duke University, DUMC Box 3302, Durham, NC 27710, USA
    Radiographics 24:313-34. 2004
    ..After the PACS has been installed, the user should perform technical and clinical acceptance testing to ensure that the system meets expectations...
  33. ncbi request reprint Digital mammography image quality: image display
    Eliot Siegel
    University of Maryland, Department of Radiology, Baltimore, MD, USA
    J Am Coll Radiol 3:615-27. 2006
    ....
  34. pmc Monte Carlo simulation of a realistic anatomical phantom described by triangle meshes: application to prostate brachytherapy imaging
    Andreu Badal
    Institut de Tècniques Energètiques, Universitat Politecnica de Catalunya, Spain
    Radiother Oncol 86:99-103. 2008
    ..These two simulation tools are intended to study the multiple applications of imaging in radiotherapy, from image guided treatments to portal imaging...
  35. ncbi request reprint Efficiency of the human observer for detecting a Gaussian signal at a known location in non-Gaussian distributed lumpy backgrounds
    Subok Park
    National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, USA
    J Opt Soc Am A Opt Image Sci Vis 24:911-21. 2007
    ..We conclude that the non-Gaussian distributed lumpy background is a major factor in our low human-efficiency results...