Optimization of x-ray imaging geometry (with specific application to flat-panel cone-beam computed tomography)

Medical Physics

Volumn 27, Issue 8, 2000, Pages 1903-1914

  Siewerdsen, Jeffrey H ^a   Jaffray, David A ^a  

^a WILLIAM BEAUMONT HOSPITAL   (United States)

Author keywords

Cascaded systems analysis; Cone beam computed tomography; Detective quantum efficiency; Flat panel imager; Magnification; Optimization; X ray scatter

Indexed keywords

ADDITIVE NOISE; ADDITIVES; COMPUTERIZED TOMOGRAPHY; EFFICIENCY; GEOMETRY; IMAGE ANALYSIS; MAMMOGRAPHY; OPTIMIZATION; PHOTODEGRADATION; QUANTUM EFFICIENCY; SYSTEMS ANALYSIS; X RAY RADIOGRAPHY; X RAY SCATTERING;

CASCADED SYSTEMS ANALYSIS; CONE-BEAM COMPUTED TOMOGRAPHY; DETECTIVE QUANTUM EFFICIENCY; FLAT-PANEL IMAGERS; MAGNIFICATION;

X RAY DETECTORS;

ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; GEOMETRY; IMAGE QUALITY; NOISE; PRIORITY JOURNAL; X RAY;

EID: 0033849841     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.1286590     Document Type: Article

References (62)

1. R. Fahrig, J. A. Rowlands, and M. J. Yaffe, "X-ray imaging with amorphous selenium: optimal spectra for digital mammography," Med. Phys. 23, 557-567 (1996).
2. J. P. Bissonnette, I. A. Cunningham, and P. Munro, "Optimal phosphor thickness for portal imaging," Med. Phys. 24, 803-814 (1997).
3. J. H. Siewerdsen and L. E. Antonuk, "DQE and system optimization for indirect-detection flat-panel imagers in diagnostic radiology," Proc. SPIE 3336, 546-554 (1998).
4. J. P. Bissonnette, D. A. Jaffray, A. Fenster, and P. Munro, "Optimal radiographic magnification for portal imaging," Med. Phys. 21, 1435-1445 (1994).
5. R. Ning, D. Lee, X. Wang, Y. Zhang, D. Conover, D. Zhang, and C. Williams, "Selenium flat panel detector-based volume tomographic angiography imaging: phantom studies," Proc. SPIE 3336, 316-324 (1998).
6. R. Ning, X. Tang, R. Yu, D. Zhang, and D. Conover, "Flat panel detector-based cone beam volume CT imaging: detector evaluation," Proc. SPIE 3659, 192-203 (1999).
7. J. H. Siewerdsen and D. A. Jaffray, "Cone-beam CT with a flat-panel imager: noise considerations for fully 3-D imaging," Proc. SPIE 3336, 546-554 (2000).
8. J. H. Siewerdsen and D. A. Jaffray, "A ghost story: spatio-temporal response characteristics of an indirect-detection flat-panel imager," Med. Phys. 26, 1624-1641 (1999).
9. J. H. Siewerdsen and D. A. Jaffray, "Cone-beam computed tomography with a flat-panel imager: effects of image lag," Med. Phys. 26, 2635-2647 (1999).
10. D. A. Jaffray, J. H. Siewerdsen, and D. G. Drake, "Performance of a volumetric CT scanner based upon a flat-panel imaging array," Proc. SPIE 3659, 204-214 (1999).
11. D. A. Jaffray, J. H. Siewerdsen, and D. G, Drake, "Cone-beam computed tomography with a flat-panel imager: initial performance characterization," Med. Phys. 27, 1311-1323 (2000).
12. International Commission on Radiation Units and Measurements Report No. 54, Medical Imaging - the Assessment of Image Quality (ICRU, Bethesda, MD, 1996).
13. H. E. Johns and J. R. Cunningham, The Physics of Radiology, 4th ed. (Thomas, Springfield, IL, 1983).
14. H. H. Barrett and W. Swindell, Radiological Imaging: The Theory of Image Formation, Detection, and Processing, Volume 1 (Academic, New York, 1981).
15. J. M. Boone and J. A. Seibert, "An analytical model of the scattered radiation distribution in diagnostic radiology," Med. Phys. 15, 721-725 (1988).
16. J. M. Boone and J. A. Seibert, "Monte Carlo simulation of the scattered radiation distribution in diagnostic radiology," Med. Phys. 15, 713-720 (1988).
17. M. Honda, K. Kikuchi, and K. Komatsu, "Method for estimating the intensity of scattered radiation using a scatter generation model," Med. Phys. 18, 219-226 (1991).
18. U. Neitzel, "Grids or air gaps for scatter reduction in digital radiography: a model calculation," Med. Phys. 19, 475-481 (1992).
19. M. Sandborg, D. R. Dance, G. A. Carlsson, and J. Persliden, "Monte Carlo study of grid performance in diagnostic radiology: factors which affect the selection of tube potential and grid ratio," Br. J. Radiol. 66 (792), 1164-1176 (1993).
20. D. L. McDaniel, G. Cohen, L. K. Wagner, and L. H. Robinson, "Relative dose efficiencies of antiscatter grids and air gaps in pediatric radiography," Med. Phys. 11, 508-512 (1984).
21. P. R. Maynard, "Space - the unknown accessory," Radiol. Technol. 52 (6), 597-604 (1981).
22. J. Persliden and G. A. Carlsson. "Scatter rejection by air gaps in diagnostic radiology. Calculations using a Monte Carlo collision density method and consideration of molecular interference in coherent scattering," Phys. Med. Biol. 42 (1), 155-175 (1997).
23. J. M. Boone, B. A. Arnold, and J. A. Seibert, "Characterization of the point spread function and modulation transfer function of scattered radiation using a digital imaging system," Med. Phys. 13, 254-256 (1986).
24. J. A. Seibert and J. M. Boone, "X-ray scatter removal by deconvolution," Med. Phys. 15, 567-575 (1988).
25. G. H. Glover, "Compton scatter effects in CT reconstructions," Med. Phys. 9, 860-867 (1982).
26. P. C. Johns and M. Yaffe, "Scattered radiation in fan beam imaging systems," Med. Phys. 9, 231-239 (1982).
27. P. M. Joseph and R. D. Spital, "The effects of scatter in x-ray computed tomography," Med. Phys. 9, 464-472 (1982).
28. J. Hsieh, "Image artifacts, causes, and corrections," in Medical CT and Ultrasound: Current Technology and Applications, edited by L. W. Goldman and J. B. Fowlkes (Advanced Medical, Madison, WI, 1995).
29. R. F. Wagner, "Noise equivalent parameters in general medical radiography: the present picture and future pictures," Photograph. Sci. Eng. 21, 252-262 (1977).
30. J. W. Motz and C. E. Dick, "X-ray scatter background signals in transmission radiography," Med. Phys. 2, 259-267 (1975).
31. C. E. Dick, C. G. Soares, and J. W. Motz, "X-ray scatter data for diagnostic radiology," Phys. Med. Biol. 23, 1076-1085 (1978).
32. W. Kalendar, "Monte Carlo calculations of x-ray scatter data for diagnostic radiology," Phys. Med. Biol. 26, 835-849 (1981).
33. H. P. Chan and K. Doi, "Physical characteristics of scattered radiation in diagnostic radiology: Monte Carlo studies," Med. Phys. 12, 152-165 (1985).
34. L. T. Niklason, J. A. Sorenson, and J. A. Nelson, "Scattered radiation in chest radiography," Med. Phys. 8, 677-681 (1981).
35. M. Rabbani, R. Shaw, and R. Van Metter, "Detective quantum efficiency of imaging systems with amplifying and scattering mechanisms," J. Opt. Soc. Am. A 4 (5), 895-901 (1987).
36. I. A. Cunningham, M. S. Westmore, and A. Fenster, "A spatial-frequency dependent quantum accounting diagram and detective quantum efficiency model of signal and noise propagation in cascaded imaging systems," Med. Phys. 21, 417-427 (1994).
37. J. H. Siewerdsen, L. E. Antonuk, Y. El-Mohri, J. Yorkston, W. Huang, J. M. Boudry, and I. A. Cunningham, "Empirical and theoretical investigation of the noise performance of indirect detection, active matrix flat-panel imagers (AMFPIs) for diagnostic radiology," Med. Phys. 24, 71-89 (1997).
38. J. H. Siewerdsen, L. E. Antonuk, Y. El-Mohri, J. Yorkston, W. Huang, and I. A. Cunningham, "Signal, noise power spectrum, and detective quantum efficiency of indirect-detection flat-panel imagers for diagnostic radiology," Med. Phys. 25, 614-628 (1998).
39. J. H. Siewerdsen, Signal, Noise, and Detective Quantum Efficiency of a-Si:H Flat-Panel Imagers, Ph.D. thesis (Bell and Howell Publishing, Ann Arbor, MI, 1998).
40. R. K. Swank, "Absorption and noise in x-ray phosphors," J. Appl. Phys. 44 (9), 4199-4203 (1973).
41. MTF data for Lanex screens provided by P. C. Bunch, Ph.D., Eastman Kodak Co., Rochester, NY (private communication).
42. J. Yorkston, L. E. Antonuk, N. Seraji, W. Huang, J. Siewerdsen, and Y. El-Mohri, "Evaluation of the MTF for a-Si:H imaging arrays," Proc. SPIE 2163, 141-148 (1994).
43. J. Yorkston, L. E. Antonuk, Y. El-Mohri, K. W. Jee, W. Huang, M. Maolinbay, X. Rong, and J. H. Siewerdsen, "Improved spatial resolution in flat-panel imaging systems," Proc. SPIE 3336, 556-563 (1998).
44. D. G. Drake, D. A. Jaffray, and J. W. Wong, "A prototype amorphous silicon array based radiotherapy portal imager," Proc. SPIE 3032, 32-41 (1997).
45. L. E. Antonuk, Y. El-Mohri, W. Huang, K. W. Jee, J. H. Siewerdsen, M. Maolinbay, V. E. Scarpine, H. Sandler, and J. Yorkston, "Initial performance evaluation of an indirect-detection, active matrix flat-panel imager (AMFPI) prototype for megavoltage imaging," Int. J. Radiat. Oncol., Biol., Phys. 42 (2), 437-452 (1998).
46. D. M. Tucker, G. T. Barnes, and D. P. Chakraborty, "Semiempirical model for generating tungsten target x-ray spectra," Med. Phys. 18, 211-218 (1991).
47. L. E. Antonuk, K. W. Jee, Y. El-Mohri, M. Maolinbay, S. Nassif, X. Rong, Q. Zhao, J. H. Siewerdsen, R. A. Street, and K. S. Shah, "Strategies to improve the signal and noise performance of active matrix, flat-panel imagers for diagnostic x-ray applications," Med. Phys. 27, 289-306 (2000).
48. W. Zhao and J. A. Rowlands, "X-ray imaging using amorphous selenium: feasibility of a flat panel self-scanned detector for digital radiology," Med. Phys. 22, 1595-1604 (1995).
49. D. L. Lee, L. K. Cheung, B. Rodricks, and G. F. Powell, "Improved imaging performance of a 14×17-inch direct radiography system using Se/TFT detector," Proc. SPIE 3336, 14-23 (1998).
50. B. Polischuk, Z. Shukri, A. Legros, and H. Rougeot, "Selenium direct converter structure for static and dynamic x-ray detection in medical imaging applications," Proc. SPIE 3336, 494-504 (1998).
51. R. A. Street, J. T. Rahn, S. E. Ready, K. Shah, P. R. Bennett, Y. Dmitriyev, P. Mei, J. P. Lu, R. B. Apte, J. Ho, K. van Schuylenbergh, F. Lemmi, J. B. Boyce, and P. Nylen, "X-ray imaging using lead iodide as a semiconductor detector," Proc. SPIE 3659, 36-47 (1999).
52. K. S. Shah, P. Bennett, M. Klugerman, L. P. Moy, and G. Entine, "Lead iodide films for x-ray imaging," Proc. SPIE 3032, 395-404 (1997).
53. I. A. Cunningham, "Analyzing system performance," in The Expanding Role of Medical Physics in Diagnostic Imaging, edited by G. D. Frey and P. Sprawls (Advanced Medical, Madison, WI, 1997), pp. 231-263.
54. I. A. Cunningham, "Degradation of the detective quantum efficiency due to a non-unity fill factor," Proc. SPIE 3032, 22-31 (1997).
55. J. P. Moy, "Image quality of scintillator based x-ray electronic imagers," Proc. SPIE 3336, 187-194 (1998).
56. J. T. Rahn, R. Lemmi, R. L. Weisfield, R. Lujan, P. Mei, J. P. Lu, J. Ho, S. E. Ready, R. E. Apte, P. Nylen, J. Boyce, and R. A. Street, "High resolution, high fill factor a-Si:H sensor arrays for medical imaging," Proc. SPIE 3659, 510-517 (1999).
57. E. Storm and H. I. Israel, "Photon cross sections from 1 keV to 100 MeV for elements Z = 1 to Z = 100," Nucl. Data Tables, A7, 565-681 (1970).
58. U. Schiebel, N. Conrads, N. Jung, M. Weibrecht, H. Wieczorek, T. Zaengel, M. J. Powell, I. D. French, and C. Glasse, "Fluoroscopic x-ray imaging with amorphous silicon thin-film arrays," Proc. SPIE 2163, 129-140 (1994).
59. H. Roehrig, L. L. Fajardo, T. Yu, and W. S. Schempp, "Signal, noise and detective quantum efficiency in CCD based x-ray imaging systems for use in mammography," Proc. SPIE 2163, 320-332 (1994).
60. T. Graeve, Y. Li, A. Fabans, and W. Huang, "High-resolution amorphous silicon image sensor," Proc. SPIE 2708, 494-498 (1996).
61. J. Chabbal, C. Chaussat, T. Ducourant, L. Fritsch, J. Michailos, V. Spinnler, G. Vieux, M. Arques, G. Hahm, M. Hoheizel, H. Horbachek, R. Schulz, and M. Spahn, "Amorphous silicon x-ray image sensor," Proc. SPIE 2708, 499-510 (1996).
62. T. J. C. Bruijns, P. L. Alving, E. L. Baker, R. Bury, A. R. Cowen, N. Jung, H. A. Luijendijk, H. J. Meulenbrugge, and H. J. Stouten, "Technical and clinical results of an experimental flat dynamic (digital) x-ray image detector (FDXD) system with real-time corrections," Proc. SPIE 3336, 33-44 (1998).