Dr. Steven Rudin

Photo of Professor Stephen Rudin  

Professor of Radiology, Ph.D. City University of New York (1975)

Office: 421 ECMC,  (716) 645-3500
Email: srudin@buffalo.edu
link to personal website for more info

Education

  Ph.D. -- City University of New York (1975)
M.S. -- University of Chicago (1965)
B.S. -- University of Chicago (1964)

Research Interests

 
  • Imaging detectors: development of new high-resolution solid-state X-ray detectors, including amorphous Se flat panels and a CCD-phosphor system for high-speed, high-resolution vascular imaging
  • Exposure optimization: region-of-interest radiography where the beam is physically modulated in accordance with importance of the imaged feature while real-time image processing equalizes the brightness of the displayed information
  • Flow quantification: using biplane rapid-sequence digital subtraction radiography, small droplets of contrast media are tracked to provide three-dimensional flow velocities within vessels
  • Three-dimensional computed tomography: after X-ray image intensifier images are corrected for distortion, cone beam data are used for multiple plane three-dimensional reconstruction
  • Hospital and health physics: quality assurance for radiation sources and medical image-forming systems (radiography, ultrasound, nuclear medicine/radioisotopes, and magnetic resonance imaging), and radiation safety topics
  Studies in medical physics involve both research into new methods for imaging with X-rays, gamma rays, ultrasound, radioisotopes, and magnetic resonance, as well as practical training in quality assurance of hospital-based imaging systems and administration of radiation safety programs. As part of a new multidisciplinary center based on the donation of imaging equipment worth $3.6 million, we are investigating new imaging detectors, exposure optimization methods, and means to evaluate three-dimensional neurovascular flow. The new imaging methods will be used to aid in the development and application oftherapies our group is developing to replace surgical procedures, primarily in the brain, with new image-guided, minimally invasive, catheter-based treatments. Also, we have quality assurance and radiation safety responsibilities and access to university teaching hospitals, which provide a practical training ground for graduate students while they pursue postgraduate research.

Selected Publications

  1. "Microangiographic detector with fluoroscopic capability", S. Rudin, Y. Wu, I. Kyprianou, C. Ionita, Z. Wang, A. Ganguly, and D.R. Bednarek, SPIE 4682, 344-354 (2002). In: Proceedings from Medical Imaging 2002: Physics of Medical Imaging, San Diego, CA, paper #36.
  2. "Direct conversion flat panel detector for region-of-interest angiography", S. Rudin, A. Ganguly, D.R. Bednarek, K.R. Hoffmann, C.J. Yang, and Z. Wang, SPIE 4320, pp. 178-188, 2001. In: Proc. Med. Imagin 2001: Physics of Medical Imaging.
  3. "Quantitative Evaluation of Amorphuous Selenium (a-Se) for Region of Interest (ROI) Fluoroscopy", S. Rudin, P. Massoumzadeh, and D.R. Bednarek, SPIE 3977, pp. 658-669, In: Proc. Med. Imaging 2000: Physics of Medical Imaging. (Cum Laude Award, First Prize).
  4. "Region of interest micro-angiography: imager development", S. Rudin, D. Nazareth, C-Y Yang, D.R. Bednarek, and A. Chattopadhyay, SPIE vol. 3977, pp. 534-541, 2000, In: Proc. Med. Imaging 2000: Physics of Medical Imaging.
  5. "Super-global model for image intensifier distortion", S. Rudin, R. Liu, and D.R. Bednarek, Medical Physics 26(9), 1802-1810 (1999).