Daniel R. Bednarek
University at Buffalo
316 Papers
2K Citations
Daniel R. Bednarek is an academic researcher from University at Buffalo. The author has contributed to research in topics: Detector & Imaging phantom. The author has an hindex of 27, co-authored 281 publications. Previous affiliations of Daniel R. Bednarek include Health and Safety Executive & New York University.
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Papers
Vessel size measurements in angiograms: manual measurements.
Kenneth R. Hoffmann,Jacek Dmochowski,D Nazareth,Laszlo Miskolczi,Balázs Nemes,Anant Gopal,Zhou Wang,Stephen Rudin,Daniel R. Bednarek +8 more
TL;DR: Investigation of the accuracy and precision of vessel sizes calculated from manually indicated edges of vessels indicates that manual measurements may have accuracies comparable to automated techniques for vessels with sizes greater than 1 mm, but that automated techniques which take into account the resolution function should be used for boats with sizes smaller than 1mm.
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Scatter estimation and removal of anti-scatter grid-line artifacts from anthropomorphic head phantom images taken with a high resolution image detector.
TL;DR: In this study, a standard stationary Smit-Rontgen X-ray grid was used with a high-resolution CMOS detector, the Dexela 1207, to image anthropomorphic head phantoms, demonstrating almost total elimination of the artifact over the full FOV.
Method for image equalization of ROI fluoroscopic images using mask localization, selection and subtraction.
TL;DR: Methods are described for an optimized search to locate the ROI and select or construct a mask image using a descriptor look up table (DLUT) based on ROI size, relative ROI/periphery brightness and ROI shape and orientation.
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Micro-computed tomography (CT) based assessment of dental regenerative therapy in the canine mandible model
P. Khobragade,Anil K. Jain,Swetadri Vasan Setlur Nagesh,Sebastiano Andreana,Rosemary Dziak,Sasi K. Sunkara,S. Sunkara,Daniel R. Bednarek,Stephen Rudin,Ciprian N. Ionita +9 more
TL;DR: The results indicate that Micro-CT measurement could be used to monitor invivo bone regeneration studies for greater regenerative process understanding and to differentiate between the control and regenerative material.
Comparison Of Modified Bootstrap And Conventional Sensitometry In Medical Radiography
Daniel R. Bednarek,Stephen Rudin +1 more
- 18 Aug 1980
TL;DR: A new modified bootstrap approach to sensitometry is presented which provides H and D curves that show almost exact agreement with those obtained using conventional methods, making radiographic sensitometry quick and convenient.
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