High dynamic range pixel architectures for diagnostic medical imaging

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5368, Issue 2, 2004, Pages 657-667

  Karim, K S ^a   Yin, S ^a   Nathan, A ^b   Rowlands, J A ^c  

^a SIMON FRASER UNIVERSITY   (Canada)

^b UNIVERSITY OF WATERLOO   (Canada)

^c SUNNYBROOK RESEARCH INSTITUTE   (Canada)

Author keywords

Active pixel sensor; Amorphous silicon; Chest radiography; Fluoroscopy; Large area electronics; Medical imaging; Passive pixel sensor; Pixel amplifier; TFT

Indexed keywords

ACTIVE MATRIX FLAT PANEL IMAGER (AMFPI); ACTIVE PIXEL SENSORS; CHEST RADIOGRAPHY; FLUOROSCOPY; LARGE AREA ELECTRONICS; PASSIVE PIXEL SENSORS; PIXEL AMPLIFIERS; X-RAY FLUOROSCOPY;

AMORPHOUS MATERIALS; AMPLIFICATION; COMPUTER SIMULATION; ELECTRIC POTENTIAL; MULTIPLEXING; OPTICAL RESOLVING POWER; OPTIMIZATION; RADIOGRAPHY; SELENIUM; SIGNAL TO NOISE RATIO; THIN FILM TRANSISTORS;

MEDICAL IMAGING;

EID: 3042690577     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.537404     Document Type: Conference Paper

References (18)

1. R.A. Street, X.D. Wu, R. Weisfield, S. Ready, R. Apte, M. Nguyen, and P. Nylen, "Two Dimensional Amorphous Silicon Image Sensor Arrays," MRS Symp. Proc., 377, p. 757, 1995.
2. W. Zhao and J. A. Rowlands, "X-ray imaging using amorphous selenium: Feasibility of a flat panel self-scanned detector for digital radiology," Medical Physics, 22(10), p. 1595, 1995.
3. L.E. Antonuk, J. Boudry, J. Yorkston, E. J. Morton, W. Huang, R.A. Street, "Development of thin-film flat-panel arrays for diagnostic and radiotherapy imaging," Medical Imaging VI: Instrumentation, Proc. SPIE, 1651, pp. 94-105, 1992.
4. K.S. Karim, Pixel Architectures for Digital Imaging using Amorphous Silicon Technology, Ph.D. Thesis, University of Waterloo, 2002.
5. K.S. Karim, A. Nathan, J.A. Rowlands, "Amorphous silicon pixel amplifier with VT compensation for low noise digital fluoroscopy," IEEE International Electron Devices Meeting (IEDM) 2002 Technical Digest, pp. 215-218, 2002.
6. W. Zhao and J. A. Rowlands, "A large area solid-state detector for radiology using amorphous selenium," Medical Imaging VI: Instrumentation: Proc. SPIE, 1651, pp. 134-143, 1992.
7. U. Schiebel, N. Conrads, N. Jung, M. Weibrecht, H. Wieczorek, T. Zaengel, M.J. Powell, I.D. French, C. Glasse, "Fluoroscopic X-Ray Imaging with Amorphous Silicon Thin-Film Arrays," Proc. SPIE, 2163, pp. 129-140, 1994.
8. I. Fujieda, R.A. Street, R.L. Weisfield, S. Nelson, P. Nylen, V. Perez-Mendez, and G. Cho, "High Sensitivity Readout of 2D a-Si:H Image Sensors," Japan Journal of Applied Physics, 32, pp. 198-204, 1993.
9. K.S. Karim, A. Nathan, J.A. Rowlands, "Amorphous silicon active pixel sensor readout circuit for digital imaging," IEEE Transactions on Electron Devices: Special Issue on Image Sensors 2003, 50(1), pp.200-208, Jan. 2003.
10. K.S. Karim, A. Nathan, "Readout circuit in active pixel sensors in amorphous silicon technology," IEEE Electron Device Letters, 22(10), pp. 469-471, 2001.
11. K.S. Karim, A. Nathan, J.A. Rowlands, "Alternate Pixel Architectures for Large Area Medical Imaging," in Medical Imaging 2001: Physics of Medical Imaging, L. Antonuk, M. Yaffe, Editors, SPIE vol. 4320, pp. 35-46, Jun 2001.
12. Hahndbook of Medical Imaging, Vol. 1, Physics and Psychophysics, Eds. J. Beutel, H.L. Kundel, R.L. Van Metter, SPIE, 2000.
13. K.S. Karim, Y. Vygranenko, A. Avila-Munoz, D. Striakhilev, A. Nathan, S. Germann, J.A. Rowlands, G. Belev, C. Koughia, R. Johanson, S.O. Kasap, "Active Pixel Image Sensor for Large Area Medical Imaging," in Medical Imaging 2003: Physics of Medical Imaging, L. Antonuk, M. Yaffe, Editors, SPIE vol. 5030, Part 1, pp. 38-47, February 2003.
14. R.H. Nixon, S.E. Kemeny, B. Pain, C.O. Staller, E.R. Fossum, "256 × 256 CMOS Active Pixel Sensor Camera-on-a-Chip," IEEE Journal of Solid State Circuits, 31(12), pp. 2046-2050, 1996.
15. K.S. Karim, A. Nathan, J.A. Rowlands, "Active pixel sensor architectures in a-Si for medical imaging," Journal of Vacuum Science and Technology A, 20(3), pp. 1095-1099, May 2002.
16. K. Khakzar and E. H. Lueder, "Amorphous-Silicon Thin-Film Transistors for Simulations with SPICE," IEEE Trans. Electron Devices, vol.39, no.6, pp.1428-1434, June 1992.
17. P. Servati and A. Nathan, "Modeling of the Reverse Characteristics of a-Si:H TFTs," IEEE Trans. Electron Devices, vol. 49, no.5, pp.812-819, May 2002.
18. K.S. Karim, A. Nathan, "Noise performance of a current-mediated amplified pixel for medical imaging," Journal of Vacuum Science and Technology A, in review, August 2003.