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Daniel                         Bednarek

Daniel R. Bednarek PhD, FAAPM

Department of Radiology

Professor: Radiology; Neurosurgery; Physiology & Biophysics

Specialty/Research Focus

Radiological Physics

 
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Professional Summary:

A specialist in radiological imaging physics & radiation safety, Dr. Bednarek is board certified in Diagnostic, Therapeutic & Medical Nuclear Physics. He was a charter member of the AAPM Commission on Accreditation of Educational Programs for Medical Physicists and has served the ABR as oral examiner & as a member & chair of the diagnostic radiology physics written examination committee for over 17 years. He has served as Associate Editor & Reviewer for the Journal Medical Physics & is a member of the ACR Mammography Interpretive Skills Assessment Committee. He is a fellow of the AAPM & has received the Lifetime Service Award from the ABR.

Dr. Bednarek is a research faculty member of the Toshiba Stroke and Vascular Research Center & Clinical Medical Physicist at the Erie County Medical Center. He has taught medical imaging physics & radiation safety for over 30 years to radiology residents, graduate students, medical students, and hospital staff. He has been engaged in research in region-of-interest imaging including development & evaluation of limited-field-of-view, high resolution real-time imaging detectors with specific application to neuroimaging. Recent work has focused on methods for determination of patient radiation dose and development of a real-time dose-tracking system for interventional fluoroscopic procedures.

Education and Training:
  • PhD, Medical Physics, University of Chicago (1978)
  • MS, Radiological Physics, University of Chicago (1973)
  • BS, Physics, Canisius College (1969)
Employment:
  • Professor, University at Buffalo (2000-present)
  • Research Associate Professor, University at Buffalo (1993-present)
  • Radiation Equipment Safety Officer/ Associate Radiation Safety Officer, Erie County Medical Center (1992-present)
  • Graduate Faculty, University at Buffalo (1991-present)
  • Research Associate Professor, University at Buffalo (1987-present)
  • Consultant Medical Staff, Erie CountyMedical Center (1995–2013)
  • Adjunct Professor, University at Buffalo (2001–2003)
  • Adjunct Associate Professor, University at Buffalo (1996–2002)
  • Adjunct Associate Professor, University at Buffalo (1998–2001)
  • Associate Professor, University at Buffalo (1985–2000)
  • Assistant Professor, University at Buffalo (1978–1985)
  • Hospital Quality Assurance Physicist, University of Chicago (1977–1978)
  • Senior Research Technician, University of Chicago, Franklin Mclean Memorial Research Institute (1976–1978)
  • Research Assistant, University of Chicago, Pritzker School of Medicine (1975–1976)
  • Teaching Assistant, University at Buffalo (1969–1970)
  • Laboratory Instructor, Cansius College (1968–1969)
See All (16 Total) >
Awards and Honors:
  • Certificate of Merit Citation (2001)
  • Cum Laude Award for Scientific Excellence (2000)
  • Cum Laude Award for Scientific Excellence (1999)
  • AAPM Fellow (1999)
  • Merit Award for Scientific Excellence (1998)
  • Merit Award for Scientific Excellence (1998)
  • Merit Award for Scientific Excellence (1997)
  • Merit Award for Scientific Excellence (1996)
  • Merit Award for Scientific Excellence (1995)
  • Cum Laude Award for Scientific Excellence (1993)
  • Research Assistantship and University Unendowed Scholarship (1975)
  • National Institute of Health Training Grant (1971)
  • Teaching Assistantship (1969)
  • NYS Regents and Canisius College President's Scholarships (1965)

Grants and Sponsored Research:
  • May 2008–April 2011
    Research Agreement with Toshiba Corp. continuation 4
    Toshiba Medical Systems
    Role: Co-Principal Investigator
    $900,000
  • May 2005–April 2008
    Research Agreement with Toshiba Corp. continuation 3
    Toshiba Medical Systems
    Role: Co-Principal Investigator
    $600,000
  • February 1999–April 2005
    Micro-radiographic imager for neurovascular intervention
    National Institute of Neurological Disorders and Stroke
    Role: Co-Investigator
    $1,173,159
  • August 2002–July 2004
    Patient dose tracking system for fluoroscopic procedures
    Food and Drug Administration
    Role: Principal Investigator
    $343,133
  • July 1996–June 1999
    High resolution and sensitivity digital x-ray imager for mammography
    Sensor Plus Inc.
    Role: Co-Principal Investigator
  • September 1993–August 1997
    Region of Interest Fluoroscopy
    National Institute of Neurological Disorders and Stroke
    Role: Co-Investigator
    $590,000
  • January 1993–January 1994
    Real-time light weight x-ray imager
    Sensor Plus Inc.
    Role: Contributor
    $15,600
  • January 1987–January 1988
    Teleradiology imaging workstation, continuation
    UB Foundation
    Role: Contributor
    $5,000
  • January 1987–January 1988
    Intensity compensated radiographic illuminator, continuation
    UB Foundation Inc.
    Role: Principal Investigator
    $13,000
  • January 1987–January 1988
    Three-dimensional reconstruction and display of CT images
    UB Foundation
    Role: Contributor
    $6,000
  • January 1986–January 1987
    The Assemblage of a digital imaging facility for acquisition processing and transmission /reception of medical images
    UB Foundation
    Role: Contributor
    $10,000
  • July 1982–September 1981
    Radiographic contrast improvement using rotating aperture wheels
    National Cancer Institute
    Role: Co-Principal Investigator
  • October 1980–September 1981
    Fluoroscopic dose reduction using iris control
    Bureau of Radiologic Health
    Role: Co-Investigator
    $8,800
  • December 2000
    Historical Archives in Radiology
    Dr. George Alker Jr. Estate
    Role: Principal Investigator
  • July 1999
    A new energy-sensitive radiographic imager for high resolution tissue differentiation
    Dr. Louis Sklarow Memorial Fund
    Role: Principal Investigator
  • March 1992
    Radiation Safety and Medical Physics Services
    Erie County Medical Center
    Role: Co-Principal Investigator
  • Angiography Equipment Grant
    Toshiba Stroke Research Center, Toshiba America Medical Systems Inc.
    Role: Contributor
  • Sun Microsystems Inc. Equipment Start-up Grant
    Sun Microsystems Laboratories Inc.
    Role: Co-Investigator
  • Research Agreement with Toshiba Corp. for continued support of the UB/Toshiba Stroke Research Center
    American Association of Dental Schools
    Role: Co-Investigator
  • Support grant for the Toshiba Stroke Research Center
    Oishei Foundation
    Role: Co-Investigator
  • Spatially modulated radiographic illuminator
    NIH
    Role: Principal Investigator
  • Spatially Modulated Radiographic Illuminator
    NIH
    Role: Principal Investigator
See All (22 Total) >
Patents:
  • Radiographic Imaging Appartus and Method for Vascular Interventions U.S. patent no. 6,285, 739 (2001)
  • Process and Apparatus for Scatter Reduction in Radiography United States patent no. 4,403,338 (1983)
  • Method and Appartus for Conducting Region of Interest Fluoroscopy U.S. patent application serial no. 08/137,634

Journal Articles:
  • Daniel Bednarek, Stephen Rudin. Computer-aided bootstrap generation of characteristic curves for radiographic imaging systems.. Med Phys. 2001; 28(4).
  • Stephen Rudin, Yang CJ, Wang Z, Gopal A, Chattopadhyay A, Daniel Bednarek, Hoffmann KR, Miskolczi L, L Nelson Hopkins, Guterman LR, Lieber BB, Yamada S, Shiraishi K, Umazaki H, Takahashi S, Honda M. The clinical potential of x-ray flat panel detectors for dynamic images -the evaluation of animal angiographic studies using a direct conversion type flat panel detector. Toshiba Medical Review. 2000; 73.
  • Daniel Bednarek, Stephen Rudin. Comparison of two dose-area-product ionization chambers with different conductive surface coating for over-table and under-table tube configurations.. Health Phys. 2000; 78(3).
  • Liu RR, Stephen Rudin, Daniel Bednarek. Super-global distortion correction for a rotational C-arm x-ray image intensifier.. Med Phys. 1999; 26(9).
  • Liu R, Stephen Rudin, Daniel Bednarek. Super-global model for image intensifier distortions. Medical Physics. 1999; 26(9).
  • Stephen Rudin, Daniel Bednarek, Yang CY. Real-time equalization of region-of-interest fluoroscopic images using binary masks.. Med Phys. 1999; 26(7).
  • Stephen Rudin, Wakhloo AK, Lieber BB, Granger W, Divani AA, Daniel Bednarek, Hopkins LN. Microdroplet tracking using biplane digital subtraction angiography for cerebral arteriovenous malformation blood flow path and velocity determinations.. AJNR Am J Neuroradiol. 1999; 20(6).
  • Massoumzadeh P, Stephen Rudin, Daniel Bednarek. Filter Material Selection for Region of Interest Radiologic Imaging. Medical Physics. 1998; 25(2).
  • Massoumzadeh P, Rudin S, Daniel Bednarek. Filter material selection for region of interest radiologic imaging.. Med Phys. 1998; 25(2).
  • Granger WE, Daniel Bednarek, Rudin S. Primary beam exposure outside the fluoroscopic field of view.. Med Phys. 1997; 24(5).
  • Granger WE, Daniel Bednarek, Stephen Rudin. Survey of Primary beam exposure outside the displayed fluoroscopic FOV. Medical Physics. 1997; 24(5).
  • Kezerashvili M, Daniel Bednarek, Stephen Rudin. Automatic system for measuring dose-area product (DAP) in ROI Fluoroscopy. Physics in Medicine and Biology. 1997; 42(4).
  • Kezerashvili M, Daniel Bednarek, Rudin S. Automated system for measuring dose-area product (DAP) in ROI fluoroscopy.. Phys Med Biol. 1997; 42(4).
  • Kezerashvili M, Rudin S, Daniel Bednarek. Automatic filter placement device for region of interest (ROI) fluoroscopy.. Health Phys. 1997; 72(1).
  • Kezerashvili M, Stephen Rudin, Daniel Bednarek. Automatic Filter Placement device for ROI Fluoroscopy. Health Physics. 1997; 72(1).
  • Daniel Bednarek, Rudin S. Increasing the utility of the mammographic phantom image.. Radiology. 1996; 201(2).
  • Rudin S, Daniel Bednarek, Kezerashvili M, Granger WE, Joseph Serghany, Guterman LR, Hopkins LN, Szymanski B, Loftus RJ. Clinical application of region-of-interest techniques to radiologic imaging.. Radiographics. 1996; 16(4).
  • Rudin S, Guterman LR, Granger WE, Daniel Bednarek, Hopkins LN. Application of region-of-interest imaging techniques to neurointerventional radiology.. Radiology. 1996; 199(3).
  • Stephen Rudin, Lee Guterman, Granger W, Daniel Bednarek, L Nelson Hopkins. Neuro-interventional Radiologic Application of Region of Interest (ROI)Imaging Techniques. Radiology. 1996; 199.
  • Stephen Rudin, Daniel Bednarek, Kezerashvili M, Granger W, Serghany J, Lee Guterman, L Nelson Hopkins, Massuomzadeh P, Szymanski B, Loftus R. Clinical Application of Region of Interest (ROI) Radiologic ImagingTechniques. Radiographics. 1996; 16.
  • Fletcher LM, Stephen Rudin, Daniel Bednarek. Method for Image Equalization of ROI Fluoroscopic Images using Mask Localization Selection and Subtraction. Computerized Med. Imag. and Graphics. 1996; 20(2).
  • Daniel Bednarek, Stephen Rudin. Increasing the utility of the mammographic phantom image. Radiology. 1996; 201.
  • Stephen Rudin, Daniel Bednarek, Lee Guterman, Wakhloo A, L Nelson Hopkins, Fletcher L, Massoumzadeh. Implementation of region of interest fluoroscopy using the road mapping mode of a real-time digital radiographic unit. Radiographics. 1995; 15(6).
  • Rudin S, Daniel Bednarek, Guterman LR, Hopkins LN, Wakhloo AK, Fletcher LM, Massoumzadeh P. Implementation of region-of-interest fluoroscopy by using the road mapping mode of a real-time digital radiographic unit.. Radiographics. 1995; 15(6).
  • Stephen Rudin, Daniel Bednarek. Region of interest fluoroscopy. Med Physics. 1992; 19(5).
  • Stephen Rudin, Daniel Bednarek. Minimizing radiation dose to patient and staff during fluoroscopic, nasoenteral tube insertions.. Br J Radiol. 1992; 65(770).
  • Stephen Rudin, Daniel Bednarek, Wong Roland. Accurate characterization of image intensifier distortion.. Med Phys. 1991; 18(6).
  • Stephen Rudin, Daniel Bednarek, Wong R. Improving fluoroscopic image quality with continuously variable zoom magnification.. Med Phys. 1991; 18(5).
  • Stephen Rudin, Daniel Bednarek, Wong Roland. Computer frame freezing of fluoroscopic images.. Radiol Technol. 1991; 62(5).
  • Daniel Bednarek, Stephen Rudin. Blurred-mask density compression for improved reproduction of radiographs.. Invest Radiol. 1991; 26(4).
  • Daniel Bednarek, Stephen Rudin, Wong R. Luminance range compression for video film digitizers.. Med Phys. 1991; 18(2).
  • Stephen Rudin, Daniel Bednarek, Miller JA. Dose reduction during fluoroscopic placement of feeding tubes.. Radiology. 1991; 178(3).
  • Daniel Bednarek, Rudinger G, Stephen Rudin. Slit design considerations for rotating-aperture, scanning-beam radiography.. Med Phys. 1988; 15(1).
  • Stephen Rudin, Daniel Bednarek, Wong R. Rapid scanning beam digital radiography. J. Imaging Technology. 1983; 9(6).
  • Daniel Bednarek, Stephen Rudin, Wong R, Andres ML. Reduction of fluoroscopic exposure for the air-contrast barium enema.. Br J Radiol. 1983; 56(671).
  • Daniel Bednarek, Stephen Rudin, Wong R. Assessment of patient exposure for barium enema examinations.. Invest Radiol. 1983; 18(5).
  • Daniel Bednarek, Stephen Rudin, Wong Roland. Assessment of patient exposure for barium enema examinations. Investigative Radiology. 1983; 18(5).
  • Daniel Bednarek, Stephen Rudin, Wong R. Artifacts produced by moving grids.. Radiology. 1983; 147(1).
  • Stephen Rudin, Daniel Bednarek, Wong Roland. Artifact patterns in multiple scanning beam radiography.. Med Phys. 1982; 9(3).
  • Stephen Rudin, Daniel Bednarek, Wong Roland. Design of rotating aperture cones for radiographic scatter reduction.. Med Phys. 1982; 9(3).
  • Stephen Rudin, Daniel Bednarek, Wong Roland. Design of rotating aperture cones for radiographic scatter reduction. Med Physics. 1982; 9(3).
  • Daniel Bednarek, Stephen Rudin, Wong R. An optical density comparator. Radiology. 1982; 142.
  • Daniel Bednarek, Stephen Rudin, Roland Wong. An optical density comparator.. Radiology. 1982; 142(2).
  • Daniel Bednarek, Stephen Rudin, Roland Wong. Methods of sensitometry for low energy radiography. Optical Engineering. 1982; 21(1).
  • Stephen Rudin, Daniel Bednarek. Scatter reduction in x-ray tomography using rotating apertures. Optical Engineering. 1981; 20(4).
  • Daniel Bednarek, Stephen Rudin. Modified bootstrap sensitometry in radiography. Optical Engineering. 1981; 20(2).
  • Stephen Rudin, Daniel Bednarek. Improving contrast in special procedures using a rotating aperture wheel (RAW) device. Radiology. 1980; 137(2).
  • Stephen Rudin, Daniel Bednarek. Improved contrast in special procedures using a rotating aperture wheel (RAW) device.. Radiology. 1980; 137(2).
  • Daniel Bednarek, Lanzl LH, Rozenfeld M. On the application of a liquid-dielectric ionization chamber to Cf-252 dosimetry.. Med Phys. 1976; 3(6).
  • Daniel Bednarek, Rozenfeld M, Lanzl LH, Sabau M. A protocol for exposure limitation in radiography.. Radiol Technol. ; 53(3).
  • Rudin S, Daniel Bednarek. Region of interest fluoroscopy.. Med Phys. ; 19(5).
  • Lanzl LH, Moser F, Oswald R, Daniel Bednarek, Mewissen DJ, Furedi EM, Rozenfeld M, Mason EW, Koch R. Measurement of the relative biological effectiveness of Cf-252. Californium-252 Progress. ; 18.
  • Kaczmarek RG, Daniel Bednarek, Wong R. Misconceptions of medical students about radiological physics. Health Physics. ; 52.
  • Fletcher LM, Rudin S, Daniel Bednarek. Method for image equalization of ROI fluoroscopic images using mask localization, selection and subtraction.. Comput Med Imaging Graph. ; 20(2).
See All (54 Total) >
Abstracts:
  • Lieber BB, Stephen Rudin, Wahkloo AK, Daniel Bednarek, L Nelson Hopkins. Fluoroscopic tracking of traceable droplets in an aneurysm model. ASNR/ASHNR. 1997.
  • Stephen Rudin, Wahkloo AK, Lieber BB, Lee Guterman, L Nelson Hopkins, Daniel Bednarek. Droplet tracking using biplane digital angiography for cerebral arteriovenous malformations blood flow velocity and vessel morphology determinations. Scientific Program. 1997.
  • Stephen Rudin, Wahkloo AK, Lieber BB, Lee Guterman, L Nelson Hopkins, Daniel Bednarek, Granger WE, Yang CJ. New method for analysis of arteriovenous malformations using biplane angiographic droplet tracking. Scientific Program. 1997.
  • Fletcher LM, Stephen Rudin, Daniel Bednarek. Method for ROI localization and mask selection in ROI fluoroscopy image evaluation. Medical Physics. 1995; 22(6).
  • Kezerahsvili M, Daniel Bednarek, Stephen Rudin. Method for measuring the total dose area product (DAP) during region of interest fluoroscopy. Medical Physics. 1995; 22(6).
  • Kezerashvili M, Stephen Rudin, Daniel Bednarek. Automatic filter placement device for region of interest (ROI) fluoroscopy. Medical Physics. 1995; 22(6).
  • Massoumzadeh P, Stephen Rudin, Daniel Bednarek. Contrast improvement of iodine using gadolinium filter for application of Region of Interest Fluoroscopy. Medical Physics. 1995; 22(6).
  • Stephen Rudin, Daniel Bednarek, Granger WE, L Nelson Hopkins, Lee Guterman, Wahkloo A, Chavis T. Region of Interest (ROI) Fluoroscopy and angiography in interventional radiology. Scientific Program. 1995.
  • Stephen Rudin, Fletcher L, Daniel Bednarek. Rapid selection of the image mask in Region of Interest (ROI) Fluoroscopy. RSNA Scientific Program. 1994.
  • Stephen Rudin, Fletcher L, Daniel Bednarek, Massoumzadeh P, Kezerahvili M. Practical region of interest fluoroscopy with rapid selection of image mask. RSNA Scientific Program. 1994.
  • Stephen Rudin, Daniel Bednarek, Lee Guterman, L Nelson Hopkins, Standard SC, Szikora I. Implementation of region of interest fluoroscopy using the roadmapping mode of real-time digital radiographic units. RSNA Scientific Program. 1993.
  • Stephen Rudin, Daniel Bednarek, Fletcher LM, Iota-Herbei V, Massoumzadeh P. Region of interest fluoroscopy. RSNA Scientific Program. 1993.
  • Stephen Rudin, Daniel Bednarek. Dose and image noise reduction in interventional radiology using Region of Interest (ROI) Fluoroscopic beam shift strategies. Medical Physics. 1993; 20(3).
  • Stephen Rudin, Daniel Bednarek. Selection of filter material in Region Of Interest (ROI) Fluoroscopy. Medical Physics. 1993; 20(3).
  • Stephen Rudin, Daniel Bednarek. Non-hardening x-ray beam attenuating filters. Medical Physics. 1993; 20(3).
  • Stephen Rudin, Daniel Bednarek. Region of Interest Fluoroscopy applied to interventional radiologic procedures. RSNA Scientific Program. 1992.
  • Stephen Rudin, Daniel Bednarek, Wong R. Parameterization of image intensifier distortion. Medical Physics. 1991; 18(3).
  • Stephen Rudin, Daniel Bednarek, Wong R. Continuously-variable zoom magnification for fluoroscopy. Medical Physics. 1991; 18(3).
  • Stephen Rudin, Daniel Bednarek. Substantial dose reduction in selected fluoroscopic procedures. Medical Physics. 1991; 18(3).
  • Stephen Rudin, Daniel Bednarek, Wong R, Kaczmarek RG, Kaczmarek RV, Alker G. High contrast clinical imaging with a rapid multiple scanning beam device: Effects of aperture pattern zone boundaries. RSNA Scientific Program. 1986.
  • Daniel Bednarek, Rudinger G, Stephen Rudin. Optimized rotating aperture wheel slit design. Medical Physics. 1986; 13(4).
  • Kaczmarek R, Daniel Bednarek, Stephen Rudin, Wong R. Survey of patient exposure in phototimed chest radiography. Medical Physics. 1986; 13(4).
  • Stephen Rudin, Daniel Bednarek, Wong R. Application of rapidly scanning multiple beams in digital radiography. SPSE/ AAPM Medical Imaging Meeting Program. 1982.
  • Wong R, Daniel Bednarek, Stephen Rudin. Dependence of object detectability on quantum noise in an imaging system with variable sensitivity. Medical Physics. 1982; 9(4).
  • Stephen Rudin, Daniel Bednarek, Wong R. Digital Radiography using linear array detectors with a rotating aperture beam device. Medical Physics. 1981; 8(5).
  • Daniel Bednarek, Stephen Rudin, Wong R. Artifacts patterns of anti-scatter grids. Medical Physics. 1981; 8(4).
  • Daniel Bednarek, Stephen Rudin, Wong R. Evaluation of sensitometry at mammographic energies. Medical Physics. 1981; 8(4).
  • Stephen Rudin, Daniel Bednarek, Wong R, Andres MLR, Leslie EV. Fluoroscopic dose reduction using iris control. Medical Physics. 1981; 8(4).
  • Stephen Rudin, Daniel Bednarek, Wong R. Rotating aperture cones for scatter reduction in diagnostic radiology. RSNA Scientific Program. 1980.
  • Stephen Rudin, Daniel Bednarek, Wong R. Synchronization and overlap artifacts in multiple scanning beam radiography. RSNA Scientific Program. 1980.
  • Stephen Rudin, Daniel Bednarek. Scatter reduction in cone beam CT using a Scanning Cylindrical Aperture Tomography (SCAT) device. Medical Physics. 1980; 7(4).
  • Daniel Bednarek, Stephen Rudin. Clinical Sensitometry. Medical Physics. 1980; 7(4).
  • Daniel Bednarek, Stephen Rudin. A comparison of modified bootstrap and conventional methods of sensitometry in medical radiology. Am. J. Roentg.. 1980; 134.
  • Stephen Rudin, Daniel Bednarek. A RAW device for x-ray tomography. Am. J. Roentg.. 1980; 134.
  • Stephen Rudin, Daniel Bednarek. The RAW device - a rotating aperture wheel anti-scatter system for dynamic radiology. Medical Physics. 1979; 6(4).
  • Stephen Rudin, Daniel Bednarek, Kezerashvili M, Granger WE, Massoumzadeh P. Clinical Application of Region of Interest (ROI) Radiologic Imaging Techniques. Scientific Program..
  • Granger WE, Daniel Bednarek, Stephen Rudin, Klash S. Excess patient exposure due to inexact fluoroscopic collimation and its reduction using ROI techniques. Medical Physics. ; 23(6).
  • Kezerashvili M, Daniel Bednarek, Stephen Rudin. Computerized system for dose-area product monitoring ROI fluoroscopy. Medical Physics. ; 23(6).
  • Massoumzadeh P, Stephen Rudin, Daniel Bednarek. Effect of Gd and Cu Region of Interest (ROI) filters on image contrast and relative detected signal. Medical Physics. ; 23(6).
  • Daniel Bednarek, Kezerashvili M, Stephen Rudin. Effect of field size on contrast and dose for fluoroscopic systems with automatic brightness control. Medical Physics. ; 23(8).
  • Stephen Rudin, Daniel Bednarek. Real-time contrast and brightness equalization in region of interest (ROI) fluoroscopy. Scientific Program..
  • Stephen Rudin, Lieber BB, Stancampiano A, Daniel Bednarek, Wahkloo AK. Fluoroscopic study of disturbed flow in a stented vs. non-stented aneurysm model by comparison of streak patterns and droplet paths. Scientific Program..
  • Stephen Rudin, Daniel Bednarek, Granger WE, Kezerashvili M, Massoumzadeh P. Demonstration of real-time equalization of Region-of-Interest (ROI) Fluoroscopic Images. Scientific Program..
  • Daniel Bednarek, Stephen Rudin. Comparison of two dose-area product (DAP) ionization chambers. Medical Physics. ; 24(8).
  • Stephen Rudin, Patel JJ, Daniel Bednarek. Decay time measurements of imaging phosphor materials. Medical Physics. ; 25(7).
  • Liu R, Stephen Rudin, Daniel Bednarek, Yang CJ. Super-global distortion correction for a rotational c-arm x-ray image intensifier. Medical Physics. ; 25(7).
  • Daniel Bednarek, Stephen Rudin. A double transmission ionization chamber for dose-area-product monitoring. Medical Physics. ; 25(8).
  • Granger WE, Stephen Rudin, Divani AA, Wahkloo AK, Lieber BB, Daniel Bednarek. A new method of dual contrast injection for flow determination by digital radiographic imaging. Scientific Program..
  • Stephen Rudin, Wahkloo AK, Daniel Bednarek, Yang CJ, Granger WE. Comparison of a new high resolution region of interest (ROI) micro-angiographic digital detector with standard image intensifier and screen-film receptors for visualizing vascular stents. Scientific Program..
  • Stephen Rudin, Wahkloo AK, Daniel Bednarek, Yang CJ, Granger WE. Stent visualization with new resolution region of interest (ROI) micro-angiographic digital detector. Scientific Program..
  • Nazareth D, Chattopadhyay A, Stephen Rudin, Yang CJ, Daniel Bednarek. Initial study of the micro-angiographic determination of elastic properties of vessels. Medical Physics. ; 26(6).
  • Chattopadhyay A, Barasch E, Daniel Bednarek, Stephen Rudin. Design strategies for pressurized xenon microstrip detectors in radiography. Medical Physics. ; 26(8).
  • Wang Z, Stephen Rudin, Daniel Bednarek. An accurate method for angiographic measurement of neurovascular lesion dimensions. Medical Physics. ; 26(8).
  • Yamada S, Nagai S, Honda M, Yang C-YJ, Daniel Bednarek, Stephen Rudin. Image quality evaluation of a new selenium-based flat panel digital x-ray detector system at low dose fluoroscopic rate. Scientific Program..
  • Yamada S, Tomisaki T, Umazaki H, Yang C-YJ, Daniel Bednarek, Stephen Rudin. Demonstration of a new selenium-based flat panel digital x-ray detector system for both fluoroscopy and radiography. Scientific Program..
  • Wang Z, Wu Y, Stephen Rudin, Daniel Bednarek, Nazareth DP, Yang CJ. Neurovascular phantoms for evaluation of high-resolution ROI micro-angiographic camera. World Congress on Medical Physics and Biomedical Engineering..
  • Yang CJ, Stephen Rudin, Daniel Bednarek. Performance evaluation of a real-time automatic tracking system for region of interest (ROI) fluoroscopy. World COngress on Medical Physics and Biomedical Engineering..
  • Cahttopadhyay A, Daniel Bednarek, Yang CJ, Wang Z, Gopal A, Kenneth Hoffmann, Stephen Rudin. MTF comparison of thre radiographic detectors: region of interest (ROI) micro-angoigraphic camera, selenium flat panel detector, and image intensifier. World Congress on Medical Physics and Biomedical Engineering..
  • Nazareth DP, Kenneth Hoffmann, Gopal A, Stephen Rudin, Daniel Bednarek. 3-D structured object location from a single projection. World Congress on Medical Physics and Biomedical Engineering..
  • Gopal A, Stephen Rudin, Daniel Bednarek, Yang CJ. Improvement of feature detail using a region of interest micro-angiographic camera. World Congress on Medical Physics and Biomedical Engineering..
  • Kenneth Hoffmann, Nazareth DP, Wang Z, Miskolczi L, Stephen Rudin, Daniel Bednarek. Vessel size mearsurements and the effects of resolution. World Congress on Medical Physics and Biomedical Engineering..
  • Stephen Rudin, Yamada S, Yang CJ, Honda M, Chattopadhyay A, Kenneth Hoffmann, Daniel Bednarek. Operational Comaprison of a new direct conversion flat panel detector (FPD) with a standard image intensifier for both dyanmic and static imaging. Scientific Program..
  • Stephen Rudin, Yamada S, Yang CJ, Honda M, Chattopadhyay A, Kenneth Hoffmann, Daniel Bednarek. Angiographic imaging applications for a new direct conversion amphorous selenium flat panel detector(FDP) and comparisons with an image intensifier. Scientific Program..
  • Nazareth DP, Gopal A, Stephen Rudin, Daniel Bednarek, Jacek Dmochowski, Gnaguly A, Kenneth Hoffmann. Accurate position and orientation of stents from single projections. Scientific Program..
  • Granger WE, Stephen Rudin, Divani AA, Wahkloo AK, Lieber BB, Daniel Bednarek. A new method for dual contrast injection flow for determination by digital radiographic imaging. Scientifc Program..
  • Daniel Bednarek, Tobin MB, Stephen Rudin. Dependence of contrast on variations in mammographic parameters. Medical Physics. ; 22(6).
  • Granger WE, Klash S, Stephen Rudin, Daniel Bednarek. Primary beam exposure outside the fluoroscopic FOV and proposed exposure reduction using ROI filtration. Medical Physics. ; 22(9).
  • Daniel Bednarek, Lanzl LH, Rozenfeld M. On the application of a liquid dielectric ionization chamber to Cf-252 dosimetry. Medical Physics. ; 3(6).
  • , Lanzl LH, Rozenfeld M. Applicability of a liquid dielectric ionization chamber to Cf-252 dosimetry. Medical Physics. ; 2(3).
  • Daniel Bednarek, Lanzl LH, Rozenfeld M. A liquid-filled ionization chamber for the dosimetry of interstitial implant sources. Physics in Medicine and Biology. ; 22.
  • Daniel Bednarek, Lanzl LH, Rozenfeld M. a liquid dielectric radiation quality meter. 20th Annual Meeting of AAPM..
  • Smith ST, Daniel Bednarek, Wobschall DC, Kim H, Jeong M. Evaluation of CMOS image detector flow for low cost and power medical x-ray imaging application. SPIE Medical Imaging..
  • Massoumzadeh P, Stephen Rudin, Daniel Bednarek. Evaluation of Selenium (Se) and CsI image receptors for region of interest (ROI) imaging. Scientific Program..
See All (73 Total) >
Books and Book Chapters:
  • Stephen Rudin, Daniel Bednarek. Spatial Shaping of the Beam: Collimation, Grids, Equalization Filters, and Region of Interest Fluoroscopy.. Physical and Technical Aspects of Interventional Radiology. 1995; 3.3(323).

Professional Memberships:
  • Society for Computer Applications in Radiology (1995)
  • Society for Information Display (1992)
  • Upstate New York Chapter of the American Association of Physicists in Medicine (1979)
  • Society of Photo-Optical Instrumentation Engineers (1979)
  • American College of Radiology (1979)
  • New York State Radiological Society (1979)
  • American Association of Physicists in Medicine (1973)
  • American Association of Physics Teachers (1967–1973)
Presentations:
  • "Difference in Flow Characteristics between Contrast Media and Blood during X-ray Angiography" Spring Meeting at Roswell Park Cancer Institute, Upstate New York Chapter of the AAPM, Upstate New York Chapter of the AAPM (2002)
  • "A double transmission ionization chamber for dose and dose-area product monitoring (WIP-D-03)" 40th Annual Meeting of the American Assoc. of Physicists in Medicine, American Assoc. of Physicists in Medicine (1998)
  • "A comparison of modified bootstrap and conventional methods of sensitometry in medical radiography" SPIE conference, Application of Optical Instrumentation in Medicine (1980)
  • "A liquid dielectric radiation quality meter" 20th Annual Meeting of the American Assoc. of Physicists in Medicine
  • "A liquid filled ionization chamber for the dosimetry of interstitial implant sources" 4th International Conference of Medical Physics
  • "Applicability of liquid dielectric ionization chamber to Cf-252 dosimetry" 17th Annual Meeting of the American Assc. of Physicist in Medicine
  • "Artifact patterns of scatter grids" 23rd Annual Meeting of the American Assoc. of Physicist in Medicine
  • "Automatic bootstrap characteristic curve segment matching" 41st Annual Meeting of the American Assoc. of Physicist in Medicine
  • "Clinical assessment of fluoroscopic expsoure" Scientific Session of the Upstate New York AAPM
  • "Clinical Sensitometry" 22nd Annual Meeting of the American Assoc. of Physicists in Medicine
  • "Comparison of two dose-area-product (DAP) ionization chambers" Annual Meeting of the American Assoc. of Physicist in Medicine
  • "Computer-aided bootstrap methods for characteristic curve segment" 6th Annual Memorial Meeting of the Upstate NY chapter of the AAPM
  • "Dosimtery of implant sources using liquid dielectric" Radiology and Medical Physics Seminar
  • "Effect of "coning down" on contrast and dose in fluoroscopy" Summer Meeting of the Upstate NY chapter of AAPM, University of Rochester cancer Center
  • "Effect of a multiple scanning beam device" SPSE SYmposium, Practical Applications of Conventional and New Imaging Technology
  • "Effect of field size on contrast and dose for fluoroscopic systems with automatic brightness control" 38th Annual Meeting of the American Assoc. of Physicists in Medicine
  • "Evaluation of sensitometry at mammographic energies" 23rd Annual Meeting of the american Assoc. of Physicist in Medicine
  • "Facility Acceptance Testing" Conference on Mammography and MQSA: the Physicist's role
  • "Implementing NY State mandated quality control programs in radiology departments" Regional inter-hospital seminar (ECMC)
  • "Limitations of the State of Illinois radiation exposure limits" The Assembly, State of New York, Standing Committee on Health
  • "Medical Diagnostic Imaging" SPIE's Applications of Optical Engineering Can-Am Eastern '90
  • "Medical Student training in Radiological Physics" Scientific Session of the Upstate NY chapter of AAPM
  • "Methods in radiographic sensitometry" Scientific Session of the Upstate New York AAPM
  • "Optimized rotating aperture wheel slit design" 28th Annual Meeting of the American Assoc. of Physicist in Medicine
  • "Prone stereotactic breast biopsy units" 5th Annual Maamography Seminar: New Dimensions, New Directions, WNY Mammography Society
  • "Quality Assurance Workshop in Diagnostic Radiology for Radiologic Technologist"
  • "Radiographic contrast enhancement using rapid multiple scanning beam techniques" 1st Annual Research Sympsium od SUNY/B, School of Medicine
  • "Radiographic Imaging: 1895 to Present" WNY Assoc. of Radiology Administrators in Medicine and Supervisors Seminar
  • "Reduction of dose to patient and staff in a radiology department,"
  • "Scatter reduction in cone-beam CT using cylindrical aperture tomographic (SCAT) device" 22nd Annual Meeting of American Assoc. of Physicist in Medicine
  • "Sensitometry at low x-ray energies" SPIE Conference, Application of Optical Instrumentation in Medicine
  • "Sterotactic core biopsy" Conference on Mammography and MQSA: the Physicist's role
  • "Survey of Developments in X-ray Computed Tomography" Scientific Session of the Upstate NY chapter of AAPM
  • "Techniques of Film Transmittance Compression" Scientific session of the Upstate NY chapter of AAPM
  • "The liquid dielectric ionization chamber and its appliction to Cf-252 implant dosimetry" Radiology and Meidal Physics Seminar
  • "Update investigation of a rotating aperture wheel scanning beam device" Scientific Session of the Upstate NY chapter of AAPM
See All (36 Total) >
Service Activities:
  • Representative to Faculty Council Steering Committee; SUNY Buffalo, School of Medicine and Biological Sciences; Other (2001–2002)
  • Alternative Representative; Faculty Senate, SUNY Buffalo, School of Medicine and Biological Sciences; Department Representative (2000–2001)
  • Representative; Faculty Council, Dept. of Radiology Representative SUNY Buffalo School of Medicine and Biological Sciences; Department Representative (2000–2002)
  • Chairman; Ad Hoc Committee for Promotions to Qualified (research) Ranks SUNY Buffalo, School of Medicine and Biological Sciences; Other (2000–2002)
  • Faculty Council Representative to Executive Committee; SUNY Buffalo, School of Medicine and Biological Sciences; Other (2000–2002)
  • Chairman; Ad Hoc History of Radiology Exhibits Steering Committee, SUNY Buffalo, School of Medicine and Biological Sciences; Other (2000)
  • Member; Ad Hoc Committee to Advise on the formation of a Department of Structural Biology, Faculty Council, School of Medicine and Biological Sciences; Other (2000–2001)
  • Member; American College of Radiology Committee on Mammography Interpretive skills Assessment; Other (1999)
  • Member; Cardiac Catheterization Laboratory Equipment and PACS Network Specification and Planning Dept. of Cardiology, ECMC; Other (1997–2001)
  • Member; Task Group no. One of Continuing Education Committee, Continuing Education by Remote Means Subcommittee. AAPM; Other (1997)
  • Chairman/Member; Faculty Council Biomedical research Committee, SUNY Buffalo, School of Medicine and Biological Sciences; Department Representative (1996)
  • Member; Medical Physics Graduate program Steering Committee, Dept, of Physics; Other (1996)
  • Chairman; Ad Hoc Constitutional Review Committee, Upstate NY chapter of AAPM; Other (1996–1997)
  • Member; Medical Physics Graduate Program Steering Committee; Other (1996)
  • Program Director and Organizer; "Conference on mammography and MQSA: the Physicist's role" held at University of Buffalo. Co-sponsored by the Upstate NY chapter of AAPM and the Dept. of Radiology, UB; Other (1995)
  • Chairman; Ad Hoc Continuing Education Committee, Upstate NY chapter of AAPM; Other (1995–1998)
  • Consultant; Universit Physicians Services, Women's Health Intiative WNY Vanguard Clinical Center UB Mammography Consultant; University Representative (1993–1998)
  • Alternative Representative; Faculty Council, Dept. of Radiology, SUNY Buffalo School of Medicine and Biological Sciences; Department Representative (1993–1995)
  • Consultant, Mammography Database; Niagara Systems and Software, CUBRIC, Cheektowaga,NY; Other (1993–1997)
  • Reviewer; American College of Radiology Mammography Accreditation Program, Phantom Image Evaluation; Other (1993)
  • Radiation Equipment Safety Officer and Associate Radiation Safety Officer; at ECMC; Other (1992)
  • Consultant, Medical Imaging; Sensor-Plus Inc. Amherst, NY; Other (1991–1992)
  • Member; American Board of Radiology Written Examination for Radiologist Committe, Diagnostic Radiology, (Content Expert-Radiological Physics); Other (1991)
  • Member; Performance Improvement Committee; Other (1990)
  • Member; Education Committee, Upstate NY chapter of AAPM; Other (1987–1990)
  • Member; Quality Assurance Subcommittee, Dept. of Radiology, ECMC; Other (1987)
  • Manuscript Reviewer; Medical Physics, Journal of the AAPM; Reviewer (1985–2000)
  • Chairman; AAPM Accreditation Site Visit Team, University of Colorado Health Science Center; Other (1985)
  • Chairman; Nominating Committee, Upstate NY chapter of AAPM; Department Representative (1984–1997)
  • Secretary/Member; Quality Assurance Committee, Dept. of Radiology, ECMC; Other (1983–1993)
  • Secretary/Member; Radiation Safety Committee, Dept. of Radiology, ECMC current member; Other (1983–1993)
  • Member; Image Receptor Selection and Specification Committee; Other (1982)
  • Chairman/Member; Executive Committee of the Upstate NY chapter of the AAPM; Department Representative (1981–1998)
  • Charter Member; Commission on Accreditation of Educational Programs for Medical Physicists of the AAPM; Other (1981–1986)
  • Secretary/ Treasurer; Commission on Accreditation of Educational Programs for Medical Physicists of the AAPM; Other (1981–1986)
  • Secretary/ Treasurer; Upstate NY chapter of the AAPM; Other (1981–1984)
  • Specify Equipment; Equipment Selection and Specification Committee, Dept. of Radiology, ECMC; Member (1981)
  • Member; Profesional Relations Liaison Committee, Upstate NY chapter of AAPM; Department Representative (1980–1983)
  • Co-chairman; Reduction of dose to patient and staff in a radiology department, seminar series for radiologic technolgists. Co-sponsored by Upstate NY chapter of AAPM; Other (1980)
  • Consultant; Radiological Physics, Dept. of Radiology, ECMC; Other (1979)
  • Medical Physicist; UB Radiologica Quality Assurance Program (radiation safety, equipment calibration, and radiographic quality assurance); Other (1979)
  • Associate Editor; Medical Physics; Editor
  • Member; Annual Memorial Lecture Meeting Committee, Upstate NY chapter of AAPM; Other
  • Referee; AAPM for Sylvia Sorkin Greenfield Award for Oustanding scinetific paper (other than dosimeter) published in journal: Medical Physics vol21(1994);vol22(1995), vol23(1996), vol24(1997), vol25(1998), vol26(1996).; Other
  • Chairman; Fred Faw Award Committee, Upstate NY chapter of AAPM; Other
  • Immediate-Past President; Upstate NY chapter of AAPM; Other
  • Reviewer; Abstracts, Annual Meeting of the Society for Computer Applications in Radiology; Reviewer
  • Liaison; SEFA (State Employee Federation Appeal) for Dept. of Radiology; Department Representative
  • Chairman; Nominating Committee, Uostate NY chapter of AAPM; Other
  • President; Upstate NY chapter of AAPM; Other
  • Program Chairman; Annual Memorial Lecture Meeting, Upstate NY chapter of AAPM; Other
  • Member; Promotions Committee, Dept. of Radiology; Other
  • President-elect; Upstate NY chapter of AAPM; Other
  • Program Chairman; Upstate NY chapter of the AAPM; Other
  • Contributor; American Board of Oral and Maxillofacial Radiology, Physics Written Examination Question preparation; Other
  • Guest Examiner; American Board of Radiology Oral Examination, Radiological Physics, Louisville, KY; Other
  • Member; American Board of Radiology Oral Examintion for Radiologist Committee, Diagnostic Radiology, Radiation Therapy; Other
  • Chairman; AAPM Comission on Accreditation of Medical Physics Training Programs Site Visit, Wayne State University, Detroit, MI; Other
  • Chairman; AAPM Accreditation Site Visit Planning, University of Virginia, Division of Radiological Physics; Other
  • Chairman; Nominating Committee of the Educational Council for the Commission on Accreditation of the AAPM; Other
  • Invited Observer; American Board of Radiology oral examinations, Louisville, KY; Department Representative
  • Panel Member; Implementing NY state mandated quality control programs in radiology departments Regional inter-hospital seminar, ECMC, Buffalo, NY; Other
  • Contirbutor; American College of Radiology "Radiological Physics Syllabus and Study Guide" for resdients in Radiology; Other
  • Member; AAPM Accreditation Site Team, University of Oklahoma Health Science Center; Other
  • Co-chairman; Quality Assurance Workshop in diagnostic Radiology for Radiologic Technologist; Other

Clinical Specialties:
Clinical Offices:
Insurance Accepted:

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Contact Information

Department of Radiology
Erie County Medical Center
462 Grider St.
Buffalo, NY 14215
Phone: 716-898-4193
Email: bednarek@buffalo.edu


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