Time-gated imaging in planar and tomographic x-ray imaging

Medical Physics

Volumn 26, Issue 3, 1999, Pages 438-446

  Grätz, Matthias ^a   Kiernan, Laurence ^a   Herrlin, Kristian ^b  

^a LUND INSTITUTE OF TECHNOLOGY   (Sweden)

^b LUND UNIVERSITY HOSPITAL   (Sweden)

Author keywords

Computed tomography; Contrast improvement; Laser produced plasma; Scatter reduction; Time gated imaging; X ray

Indexed keywords

LASER PRODUCED PLASMAS; MONTE CARLO METHODS; X RAY DETECTORS; X RAY RADIOGRAPHY; X RAYS;

CONTRAST IMPROVEMENTS; EXPERIMENTAL MODELING; POSSIBLE FUTURES; RADIOLOGICAL IMAGING; TECHNICAL LIMITATIONS; THEORETICAL SIMULATION; TIME-GATED IMAGING; ULTRASHORT X-RAY PULSE;

COMPUTERIZED TOMOGRAPHY;

ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; CONTRAST ENHANCEMENT; DIAGNOSTIC IMAGING; IMAGE PROCESSING; PRIORITY JOURNAL; RADIATION SCATTERING; SYSTEM ANALYSIS;

EID: 17044452768     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.598535     Document Type: Article

References (25)

1. G. T. Barnes, "Contrast and scatter in x-ray imaging," Radiographics 11, 307-323 (1991).
2. T. J. Petrone, K. D. Steidley, A. Appleby, E. Christman, and F. Haughey, "X-ray beam energy, scatter, and radiation risk in chest radiography," Health Phys. 70, 448-497 (1996).
3. G. U. V. Rao, R. L. Clark, and B. W. Gayler, "Radiographic magnification: A critical, theoretical and practical analysis (I)," Appl. Radiol. 1, 37-63 (1973).
4. J. D. Kmetec, C. L. Gordon III, J. J. Macklin, B. E. Lemoff, G. S. Brown, and S. E. Harris, "MeV x-ray generation with a femtosecond laser," Phys. Rev. Lett. 68, 1527-1530 (1992).
5. K. Herrlin, G. Svahn, C. Olsson, H. Pettersson, C. Tillman, A. Persson, C.-G. Wahlström, and S. Svanberg, "Generation of x-rays for medical imaging by high-power lasers: Preliminary results," Radiology 189, 65-68 (1993).
6. K. Herrlin, C. Tillman, M. Grätz, C. Olsson, H. Pettersson, G. Svahn, C.-G. Wahlström, and S. Svanberg, "Contrast-enhanced radiography by differential absorption, using a laser-produced x-ray source," Invest. Radiol. 32, 306-310 (1997).
7. C. Tillman, G. Grafström, A.-C. Jonsson, B.-A. Jönsson, I. Mercer, S. Mattson, S.-E. Strand, and S. Svanberg, "Survival of mammalian cells exposed to ultrahigh dose-rates from a laser-produced plasma x-ray source," accepted for publication in Radiology.
8. L.-H. Wang, P. P. Ho, C. Liu, G. Zhang, and R. R. Alfano, "Ballistic 2D-imaging through scattering walls using an ultrafast optical Kerr gate," Science 253, 769-771 (1991).
9. S. Andersson-Engels, R. Berg, O. Jarlman, and S. Svanberg, "Time-gated transillumination for medical diagnostics," Opt. Lett. 15, 1179-1181 (1990).
10. C. L. Gordon III, G. Y. Yin, B. E. Lemoff, P. B. Bell and C. P. J. Barty, "Time-gated imaging with an ultrashort-pulse laser-produced-plasma x-ray source," Opt. Lett. 20, 1056-1058 (1995).
11. M. Grätz, A. Pifferi, C.-G. Wahlström, and S. Svanberg, "Time-gated imaging in radiology: Theoretical and experimental studies," IEEE J. Quantum Electron. 2, 1041-1048 (1996).
12. L.-H. Wang, S. L. Jacques, and L.-Q. Zheng, "MCML - Monte Carlo modeling of photon transport in multi-layered tissues," Comput. Methods Programs Biomed. 47, 131-146 (1995).
13. S. Andersson-Engels, R. Berg, and S. Svanberg, "Effects of optical constants on time-gated transillumination of tissue and tissue-like media," J. Photochem. Photobiol., B 16, 155-167 (1992).
14. J. H. Hubbell, W. J. Veigele, E. A. Briggs, R. T. Brown, D. T. Cromer, and R. J. Howerton, "Atomic form factors, incoherent scattering functions, and photon scattering cross sections," J. Phys. Chem. Ref. Data 4, 471-538 (1975).
15. J. E. Turner, Atoms, Radiation and Radiation Protection, 2nd ed. (Wiley, New York, 1995).
16. "http://physics.nist.gov/PhysRefData/contents.html," National Institute of Standards and Technology, USA.
17. International Commission on Radiation Units and Measurements, Tissue Substitutes in Radiation Dosimetry and Measurements, Bethesda, Maryland, 1989.
18. S. Svanberg, J. Larsson, A. Persson, and C.-G. Wahlström, "Lund high-power laser facility - Systems and first results," Phys. Scr. 49, 187-189 (1994).
19. C. Tillman, S. Johansson, B. Erlandsson, M. Grätz, B. Hemdal, A. Almén, S. Mattson, and S. Svanberg, "High-resolution spectroscopy of laser-produced plasmas in the photon energy range above 10 keV," Nucl. Instrum. Methods Phys. Res. A 394, 387-396 (1997).
20. M. Schnürer, R. Nolte, Th. Schlegel, M. P. Kalachnikov, P. V. Nickles, P. Ambrosi, and W. Sandner, "On the distribution of hot electrons produced in short-pulse laser-plasma interaction," J. Phys. B 30, 4653-4661 (1997).
21. B. Nielsen, "Image-quality optimization in mammography using the CGR test phantom," Br. Inst. Radiol. 20, 60-63 (1989).
22. A. Macovski, "Basic concepts of reconstruction algorithms," in Radiology of the Skull and the Brain, edited by T. H. Newton and D. G. Potts (Mosby, St. Louis, 1981).
23. P. B. Bell, J. D. Kilkenny, O. L. Landen, R. L. Hanks, and J. D. Wiedwald, "Multiframe x-ray imaging with a large-area 40 ps camera," SPIE Proc. 1757, 93-99 (1992).
24. C. Bueno and M. D. Barker, "High-resolution digital radiography and three-dimensional computed tomography," SPIE Proc. 2009, 179-191 (1993).
25. C. Tillman, A. Persson, C.-G. Wahlström, S. Svanberg, and K. Herrlin, "Imaging using hard x-rays from a laser-produced plasma," Appl. Phys. B: Lasers Opt. 61, 333-338 (1995).