Effect of detector lag on CT noise power spectra

Medical Physics

Volumn 38, Issue 6, 2011, Pages 2995-3005

  Baek, Jongduk ^a   Pelc, Norbert J ^b  

^a STANFORD UNIVERSITY   (United States)

^b Stanford University   (United States)

Author keywords

CT; detector lag; noise correlation; NPS

Indexed keywords

NEPTUNIUM; POWER SPECTRUM;

ANALYTICAL EXPRESSIONS; AZIMUTHAL DIRECTION; FILTERED BACK-PROJECTION; FREQUENCY DEPENDENT; NOISE CORRELATION; NOISE POWER SPECTRUM; NOISE-POWER SPECTRA; RESPONSE FUNCTIONS;

COMPUTERIZED TOMOGRAPHY;

EID: 79958835037     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.3589135     Document Type: Article

References (30)

1. J. H. Siewerdsen and D. A. Jaffray, Cone-beam computed tomography with a flat-panel imager: Effects of image lag., Med. Phys. 26 (12), 2635-2647 (1999). 10.1118/1.598803 (Pubitemid 30007709)
2. J. H. Siewerdsen and D. A. Jaffray, A ghost story: Spatio-temporal response characteristics of an indirect-detection flat-panel imager., Med. Phys. 26 (8), 1624-1641 (1999). 10.1118/1.598657 (Pubitemid 29402274)
3. 2 photoconductors for radiation therapy imaging., Med. Phys. 37 (6), 2738-2748 (2010). 10.1118/1.3416924
4. N. E. Hartsough, J. S. Iwanczyk, E. Nygard, N. Malakhov, W. C. Barber, and T. Gandhi, Polycrystalline mercuric iodide films on CMOS readout arrays., IEEE Trans. Nucl. Sci. 56 (4), 1810-1816 (2009). 10.1109/TNS.2009.2023478
5. G. Zentai, L. Partain, R. Pavlyuchkova, C. Proano, M. Schieber, K. Shah, P. Bennett, L. Melekhov, and H. Gilboa, Comparison of Mercuric Iodide and Lead Iodide X-Ray Detectors for X-Ray Imaging Applications., IEEE Trans. Nucl. Sci. 53 (5), 2506-2512 (2006). 10.1109/TNS.2006.880975 (Pubitemid 44636989)
6. Z. Su, L. E. Antonuk, Y. El-Mohri, L. Hu, H. Du, A. Sawant, Y. Li, Y. Wang, J. Yamamoto, and Q. Zhao, Systematic investigation of the signal properties of polycrystalline HgI2 detector under mammographic, radiographic, fluoroscopic and radiotherapy irradiation conditions., Phys. Med. Biol. 50 (12), 2907-2928 (2005). 10.1088/0031-9155/50/12/012 (Pubitemid 40771019)
7. J. Starman, C. Tognina, G. Virshup, J. Star-lack, I. Mollov, and R. Fahrig, Parameter investigation and first results from a digital flat panel detector with forward bias capability., Proc. SPIE, 6913, 69130L (2008).
8. I. Mollov, C. Tognina, and R. Colbeth, Photodiode forward bias to reduce temporal effects in a-Si based flat panel detectors., Proc. SPIE, 6913, 69133S (2008). 10.1117/12.769951 (Pubitemid 351662660)
9. J. Hsieh, O. E. Gurmen, and K. F. King, A recursive correction algorithm for detector decay characteristics in CT., Proc. SPIE, 3977, 298-305 (2000). 10.1117/12.384505
10. J. Hsieh, O. E. Gurmen, and K. F. King, Investigation of a solid-state detector for advanced computed tomography., IEEE Trans. Med. Imaging, 19 (9), 930-940 (2000). 10.1109/42.887840 (Pubitemid 32084848)
11. N. W. Marshall and C. J. Korte, Measurement and correction of the effects of lag on contrast-detail test results in fluoroscopy., Phys. Med. Biol., 47 (6), 947-960 (2002). (Pubitemid 34269539)
12. N. Mail, D. J. Moseley, J. H. Siewerdsen, and D. A. Jaffray, An empirical method for lag correction in cone-beam CT., Med. Phys. 35, (11), 5187-5196 (2008). 10.1118/1.2977759
13. Y. Zhang, R. Ning, and D. Conover, Investigation of image lag in a high-speed flat panel detector-based cone beam CT imaging system., Proc. SPIE, 6142, 61420Z (2006).
14. 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 images for diagnostic x-ray applications., Med. Phys. 27 (2), 289-306 (2000). 10.1118/1.598831 (Pubitemid 30117484)
15. M. Maolinbay, Y. El-Mohri, L. E. Antonuk, K. W. Jee, S. Nassif, X. Rong, and Q. Zhao, Additive noise properties of active matrix flat-panel imagers., Med. Phys., 27 (8), 1841-1854 (2000). 10.1118/1.1286721 (Pubitemid 30666360)
16. B. Zhao and W. Zhao, Characterization of a direct, full-field flat-panel digital mammography detector., Proc. SPIE, 5030, 157-167 (2003).
17. 2, Phys. Med. Biol. 53 (5), 1325-1351 (2008). 10.1088/0031-9155/53/5/011 (Pubitemid 351594429)
18. G. Zentai, L. Partain, R. Pavlyuchkova, C. Proano, and G. Virshup, Mercuric iodide and lead iodide x-Ray detectors for radiographic and fluoroscopic medical imaging., Proc. SPIE, 5030, 77-91 (2003). 10.1117/12.480227
19. 2 for direct detection active matrix x-ray image sensors., J. App. Phys. 91 (5), 3345-3355 (2002). 10.1063/1.1436298 (Pubitemid 34598823)
20. P. R. Granfors and R. Aufrichtig, DQE(f) of an amorphous silicon flat panel x-ray detector: Detector parameter influences and measurement methodology., Proc. SPIE, 3977, 2-13 (2000). 10.1117/12.384481
21. 2 amorphous silicon flat panel x-ray detector designed for angiographic and RF imaging applications., Med. Phys. 30 (10), 2715-2726 (2003). 10.1118/1.1609151 (Pubitemid 37266770)
22. S. N. Friedman and I. A. Cunningham, A small-signal approach to temporal modulation transfer functions with exposure-rate dependence and its application to fluoroscopic detective quantum efficiency., Med. Phys. 36 (8), 3775-3785 (2009). 10.1118/1.3148668
23. D. J. Tward and J. H. Siewerdsen, Cascaded systems analysis of the 3D noise transfer characteristics of flat-panel cone-beam CT., Med. Phys. 35 (12), 5510-5529 (2008). 10.1118/1.3002414
24. K. Yang, A. L. C. Kwan, and J. M. Boone, Computer modeling of the spatial resolution properties of a dedicated breast CT system., Med. Phys. 34 (6), 2059-2069 (2007). 10.1118/1.2737263 (Pubitemid 47055741)
25. J. Baek and N. J. Pelc, The noise power spectrum in CT with direct fan beam reconstruction., Med. Phys. 37 (5), 2074-2081 (2010). 10.1118/1.3378673
26. S. J. Riederer, N. J. Pelc, and D. A. Chesler, The noise power spectrum in computed x-ray tomography., Phys. Med. Biol. 23 (3), 446-454 (1978). 10.1088/0031-9155/23/3/008 (Pubitemid 8325901)
27. A. C. Kak and Malcolm Slaney, Principles of Computerized Tomographic Imaging (IEEE, New York, 1988) pp. 190-199.
28. J. H. Siewerdsen, I. A. Cunningham, and D. A. Jaffray, A framework for noise-power spectrum analysis of multidimensional images., Med. Phys. 29 (11), 2655-2671 (2002). 10.1118/1.1513158 (Pubitemid 35375465)
29. J. C. Dainty and R. Shaw, Image Science: Principles, Analysis and Evaluation of Photographic-Type Imaging Processes (Academic, London, 1974).
30. J. Baek and N. J. Pelc, Local and global 3D noise power spectrum in cone-beam CT system with FDK reconstruction., Med. Phys. 38 (4), 2122-2131 (2011). 10.1118/1.1513158