D X Hammer

Summary

Affiliation: Physical Sciences
Country: USA

Publications

  1. pmc Angiography with a multifunctional line scanning ophthalmoscope
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 17:026008. 2012
  2. pmc Foveal fine structure in retinopathy of prematurity: an adaptive optics Fourier domain optical coherence tomography study
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, MA 01810, USA
    Invest Ophthalmol Vis Sci 49:2061-70. 2008
  3. ncbi request reprint Line-scanning laser ophthalmoscope
    Daniel X Hammer
    Physical Sciences Incorporated, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 11:041126. 2006
  4. pmc Active retinal tracker for clinical optical coherence tomography systems
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 10:024038. 2005
  5. ncbi request reprint Compact scanning laser ophthalmoscope with high-speed retinal tracker
    Daniel X Hammer
    Physical Sciences Incorporated, 20 New England Business Center, Andover, Massachusetts 01810, USA
    Appl Opt 42:4621-32. 2003
  6. ncbi request reprint Investigation of the transduction mechanism of infrared detection in Melanophila acuminata: photo-thermal-mechanical hypothesis
    D X Hammer
    Department of Electrical Engineering, University of Texas, Austin, TX 78712, USA
    Comp Biochem Physiol A Mol Integr Physiol 132:381-92. 2002
  7. pmc Real-time processing for Fourier domain optical coherence tomography using a field programmable gate array
    Teoman E Ustun
    Physical Sciences Inc, Andover, Massachusetts 01810I, USA
    Rev Sci Instrum 79:114301. 2008
  8. ncbi request reprint Sensitivity threshold and response characteristics of infrared detection in the beetle Melanophila acuminata (Coleoptera: Buprestidae)
    D X Hammer
    Electrical and Computer Engineering Department, University of Texas, Austin, TX 78712, USA
    Comp Biochem Physiol A Mol Integr Physiol 128:805-19. 2001
  9. ncbi request reprint Compact multimodal adaptive-optics spectral-domain optical coherence tomography instrument for retinal imaging
    Chad E Bigelow
    Physical Sciences Inc, Andover, MA 01810, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1327-36. 2007
  10. doi request reprint Optical coherence tomography imaging for cancer diagnosis and therapy guidance
    N Iftimia
    Physical Sciences, Andover, MA 01810, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:4067-9. 2009

Research Grants

  1. Real-Time Three-Dimensional Motion Control Tracker
    Daniel Hammer; Fiscal Year: 2003
  2. Stabilized Adaptive Optics Imaging Laser Microsurgery
    Daniel Hammer; Fiscal Year: 2004
  3. Single Shot OCT
    Daniel Hammer; Fiscal Year: 2006
  4. Compact Line-scanning Adaptive Optics Retinal Imager
    Daniel Hammer; Fiscal Year: 2007

Detail Information

Publications19

  1. pmc Angiography with a multifunctional line scanning ophthalmoscope
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 17:026008. 2012
    ..This approach has the potential to improve patient comfort and reduce imaging session times, allowing clinicians to better diagnose, plan, and conduct patient procedures with improved outcomes...
  2. pmc Foveal fine structure in retinopathy of prematurity: an adaptive optics Fourier domain optical coherence tomography study
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, MA 01810, USA
    Invest Ophthalmol Vis Sci 49:2061-70. 2008
    ..To describe the fine structure of the fovea in subjects with a history of mild retinopathy of prematurity (ROP) using adaptive optics-Fourier domain optical coherence tomography (AO-FDOCT)...
  3. ncbi request reprint Line-scanning laser ophthalmoscope
    Daniel X Hammer
    Physical Sciences Incorporated, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 11:041126. 2006
    ....
  4. pmc Active retinal tracker for clinical optical coherence tomography systems
    Daniel X Hammer
    Physical Sciences Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 10:024038. 2005
    ..For example, tracking will enable very high density 3-D scans of the retina, which are susceptible to eye motion artifacts even for new high-speed systems...
  5. ncbi request reprint Compact scanning laser ophthalmoscope with high-speed retinal tracker
    Daniel X Hammer
    Physical Sciences Incorporated, 20 New England Business Center, Andover, Massachusetts 01810, USA
    Appl Opt 42:4621-32. 2003
    ..Successful frame coaddition allowed image acquisition with decreased noise in low-light applications. The retinal tracking system significantly enhances the imaging capabilities of the scanning laser ophthalmoscope...
  6. ncbi request reprint Investigation of the transduction mechanism of infrared detection in Melanophila acuminata: photo-thermal-mechanical hypothesis
    D X Hammer
    Department of Electrical Engineering, University of Texas, Austin, TX 78712, USA
    Comp Biochem Physiol A Mol Integr Physiol 132:381-92. 2002
    ..The results of this paper are discussed in relation to the photo-thermal-mechanical transduction hypothesis. This is the first experimental examination of the transduction mechanism in Melanophila acuminata...
  7. pmc Real-time processing for Fourier domain optical coherence tomography using a field programmable gate array
    Teoman E Ustun
    Physical Sciences Inc, Andover, Massachusetts 01810I, USA
    Rev Sci Instrum 79:114301. 2008
    ..A display frame rate of 27 fps for fully processed FDOCT images (1024 axial pixels x 512 lateral A-scans) was achieved in the spectrometer-based systems...
  8. ncbi request reprint Sensitivity threshold and response characteristics of infrared detection in the beetle Melanophila acuminata (Coleoptera: Buprestidae)
    D X Hammer
    Electrical and Computer Engineering Department, University of Texas, Austin, TX 78712, USA
    Comp Biochem Physiol A Mol Integr Physiol 128:805-19. 2001
    ..The ability to detect infrared radiation is rare in nature, and these results provide valuable information necessary to understand this unique sensitivity...
  9. ncbi request reprint Compact multimodal adaptive-optics spectral-domain optical coherence tomography instrument for retinal imaging
    Chad E Bigelow
    Physical Sciences Inc, Andover, MA 01810, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1327-36. 2007
    ..In human volunteer testing, we observed up to an 8 dB increase in OCT signal and a corresponding lateral resolution of <10 microm as a result of AO correction...
  10. doi request reprint Optical coherence tomography imaging for cancer diagnosis and therapy guidance
    N Iftimia
    Physical Sciences, Andover, MA 01810, USA
    Conf Proc IEEE Eng Med Biol Soc 2009:4067-9. 2009
    ..In this paper we present an application of OCT for pancreatic cancer diagnosis and therapy guidance...
  11. pmc Adaptive optics scanning laser ophthalmoscope with integrated wide-field retinal imaging and tracking
    R Daniel Ferguson
    Physical Sciences Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Opt Soc Am A Opt Image Sci Vis 27:A265-77. 2010
    ....
  12. pmc High resolution multimodal clinical ophthalmic imaging system
    Mircea Mujat
    Physical Sciences Inc, 20 New England Business Center, Andover MA 01810, USA
    Opt Express 18:11607-21. 2010
    ....
  13. pmc Automated algorithm for breast tissue differentiation in optical coherence tomography
    Mircea Mujat
    Physical Sciences, Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    J Biomed Opt 14:034040. 2009
    ....
  14. pmc Compact adaptive optics line scanning ophthalmoscope
    Mircea Mujat
    Physical Sciences Inc, 20 New England Business Center, Andover, MA 01810, USA
    Opt Express 17:10242-58. 2009
    ..In addition to instrument design, fabrication, and testing, software algorithms were developed for automated image registration and cone counting...
  15. ncbi request reprint Dual-beam Fourier domain optical Doppler tomography of zebrafish
    Nicusor V Iftimia
    Physical Sciences Inc, 20 New England Business Center, Andover MA 01810, USA
    Opt Express 16:13624-36. 2008
    ....
  16. pmc Tracking optical coherence tomography
    R Daniel Ferguson
    Physical Sciences, Inc, 20 New England Business Center, Andover, Massachusetts 01810, USA
    Opt Lett 29:2139-41. 2004
    ....
  17. pmc Spectral-domain low coherence interferometry/optical coherence tomography system for fine needle breast biopsy guidance
    N V Iftimia
    Physical Sciences, Inc, 20 New England Business Center Drive, Andover, Massachusetts 01810, USA
    Rev Sci Instrum 80:024302. 2009
    ....
  18. pmc Retinal nerve fiber layer assessment using optical coherence tomography with active optic nerve head tracking
    Hiroshi Ishikawa
    UPMC Eye Center, Eye and Ear Institute, Ophthalmology and Visual Science Research Center, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
    Invest Ophthalmol Vis Sci 47:964-7. 2006
    ..To develop an eye-motion-tracking optical coherence tomographic (OCT) method and assess its effect on image registration and nerve fiber layer (NFL) thickness measurement reproducibility...
  19. pmc Large-field-of-view, modular, stabilized, adaptive-optics-based scanning laser ophthalmoscope
    Stephen A Burns
    School of Optometry, Indiana University, Bloomington 47405, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1313-26. 2007
    ..The retinal image was stabilized to within 18 microm 90% of the time. Stabilization was sufficient for cross-correlation techniques to automatically align the images...

Research Grants5

  1. Real-Time Three-Dimensional Motion Control Tracker
    Daniel Hammer; Fiscal Year: 2003
    ..After optimization, the Phase II instrument will be tested in a clinical ophthalmic program and the improvement in measurement of retinal features (e.g., nerve fiber layer thickness) will be quantified. ..
  2. Stabilized Adaptive Optics Imaging Laser Microsurgery
    Daniel Hammer; Fiscal Year: 2004
    ..abstract_text> ..
  3. Single Shot OCT
    Daniel Hammer; Fiscal Year: 2006
    ..In addition, the developed instrument and the principles upon which it is based may be used to image other disease types throughout the human body. ..
  4. Compact Line-scanning Adaptive Optics Retinal Imager
    Daniel Hammer; Fiscal Year: 2007
    ..These researchers will, in turn, use this tool to increase our understanding of vision and its disruption by disease and for the development of new drugs and therapies. ..