Objective characterization of GE Discovery CT750 HD scanner: Gemstone spectral imaging mode

Medical Physics

Volumn 38, Issue 3, 2011, Pages 1178-1188

  Zhang, Da ^a   Li, Xinhua ^a   Liu, Bob ^a  

^a MASSACHUSETTS GENERAL HOSPITAL   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

IODINE; PHANTOMS; SCANNING; SPECTROSCOPY;

CONTRAST TO NOISE RATIO; HIGH-CONTRAST RESOLUTION; IODINE CONCENTRATION; MATERIAL DECOMPOSITION; MONOCHROMATIC IMAGES; NOISE CHARACTERISTIC; NOISE-POWER SPECTRA; THEORETICAL VALUES;

COMPUTERIZED TOMOGRAPHY;

EID: 79952149962     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.3551999     Document Type: Article

References (32)

1. G. N. Hounsfield, " Computerized transverse axial scanning (tomography): Part I. Description of system.," Br. J. Radiol. 0007-1285 46, 1016-1022 (1973). 10.1259/0007-1285-46-552-1016
2. R. E. Alvarez and A. Macovski, " Energy-selective reconstructions in x-ray computerised tomography.," Phys. Med. Biol. 0031-9155 21, 733-744 (1976). 10.1088/0031-9155/21/5/002
3. R. Alvarez and E. Seppi, " A comparison of noise and dose in conventional and energy selective computed tomography.," IEEE Trans. Nucl. Sci. 0018-9499 26, 2853-2856 (1979). 10.1109/TNS.1979.4330549 (Pubitemid 9473439)
4. F. Kelcz, P. M. Joseph, and S. K. Hilal, " Noise considerations in dual energy CT scanning.," Med. Phys. 0094-2405 6, 418-425 (1979). 10.1118/1.594520 (Pubitemid 10244104)
5. G. Christ, " Exact treatment of the dual-energy method in CT using polyenergetic x-ray spectra.," Phys. Med. Biol. 0031-9155 29, 1501-1510 (1984). 10.1088/0031-9155/29/12/005 (Pubitemid 15187790)
6. W. A. Kalender, W. H. Perman, J. R. Vetter, and E. Klotz, " Evaluation of a prototype dual-energy computed tomographic apparatus. I. Phantom studies.," Med. Phys. 0094-2405 13, 334-339 (1986). 10.1118/1.595958 (Pubitemid 16062265)
7. W. A. Kalender, E. Klotz, and L. Kostaridou, " An algorithm for noise suppression in dual energy CT material density images.," IEEE Trans. Med. Imaging 0278-0062 7, 218-224 (1988). 10.1109/42.7785
8. J. Hsieh, J. Fan, N. Chandra, P. Crandall, and M. Kulpins, " A reconstruction technique for dual-energy x-ray computed tomography.," in Proceedings of the First International Conference on Image Formation in X-Ray Computed Tomography, Vol. 1, p. 10, 2010 (unpublished).
9. C. Maaß, M. Baer, and M. Kachelrieß, " Image-based dual energy CT using optimized precorrection functions: A practical new approach of material decomposition in image domain.," Med. Phys. 0094-2405 36, 3818-3829 (2009). 10.1118/1.3157235
10. T. R. C. Johnson, B. Krau, M. Sedlmair, M. Grasruck, H. Bruder, D. Morhard, C. Fink, S. Weckbach, M. Lenhard, B. Schmidt, T. Flohr, M. F. Reiser, and C. R. Becker, " Material differentiation by dual energy CT: Initial experience.," Eur. Radiol. 0938-7994 17, 1510-1517 (2007). 10.1007/s00330-006-0517-6 (Pubitemid 46767599)
11. D. J. Walter, E. J. Tkaczyk, and X. Wu, " Accuracy and precision of dual energy CT imaging for the quantification of tissue fat content.," Proc. SPIE 0277-786X 6142, 61421G (2006). 10.1117/12.654669 (Pubitemid 43944901)
12. Y. Zou and M. D. Silver, " Analysis of fast kV-switching in dual energy CT using a pre-reconstruction decomposition technique.," Proc. SPIE 0277-786X 6913, 691313 (2008). 10.1117/12.772826 (Pubitemid 351643989)
13. S. Kappler, M. Grasruck, D. Niederlöhner, M. Strassburg, and S. Wirth, " Dual-energy performance of dual kVp in comparison to dual-layer and quantum-counting CT system concepts.," Proc. SPIE 0277-786X 7258, 725842 (2009). 10.1117/12.811517
14. M. Grasruck, S. Kappler, M. Reinwand, and K. Stierstorfer, " Dual energy with dual source CT and kVp switching with single source CT: A comparison of dual energy performance.," Proc. SPIE 0277-786X 7258, 72583R (2009). 10.1117/12.811534
15. X. Wu, D. A. Langan, D. Xu, T. M. Benson, J. D. Pack, A. M. Schmitz, E. J. Tkaczyk, J. Leverentz, and P. Licato, " Monochromatic CT image representation via fast switching dual kVp.," Proc. SPIE 0277-786X 7258, 725845 (2009). 10.1117/12.811698
16. A. Graser, T. R. C. Johnson, H. Chandarana, and M. Macari, " Dual energy CT: Preliminary observations and potential clinical applications in the abdomen.," Eur. Radiol. 0938-7994 19, 13-23 (2009). 10.1007/s00330-008- 1122-7
17. N. Takahashi, R. P. Hartman, T. J. Vrtiska, A. Kawashima, A. N. Primak, O. P. Dzyubak, J. N. Mandrekar, J. G. Fletcher, and C. H. McCollough, " Dual-energy CT iodine-subtraction virtual unenhanced technique to detect urinary stones in an iodine-filled collecting system: A phantom study.," AJR, Am. J. Roentgenol. 0361-803X 190, 1169-1173 (2008). 10.2214/AJR.07.3154 (Pubitemid 351684915)
18. P. R. S. Mendoņa, R. Bhotika, M. Maddah, B. Thomsen, S. Dutta, P. E. Licato, and M. C. Joshi, Multi-Material Decomposition of Spectral CT Images, Proc. SPIE 7622, 76221W (2010).
19. B. Li, G. Yadava, J. Hsieh, N. Chandra, and M. S. Kulpins, " Head and body CTDIw of dual-energy x-ray CT with fast-kVp switching.," Proc. SPIE 0277-786X 7622, 76221Y (2010).
20. T. G. Flohr, C. H. McCollough, H. Bruder, M. Petersilka, K. Gruber, C. Süß, M. Grasruck, K. Stierstorfer, B. Krauss, R. Raupach, A. N. Primak, A. Kttner, S. Achenbach, C. Becker, A. Kopp, and B. M. Ohnesorge, " First performance evaluation of a dual-source CT (DSCT) system.," Eur. Radiol. 0938-7994 16, 256-268 (2006). 10.1007/s00330-005-2919-2 (Pubitemid 43149624)
21. J. Fan, F. Dong, P. Sainath, J. Hsieh, X. Tang, T. Toth, B. Li, P. Crandall, R. Senzig, and A. Dixon, Image Quality Evaluation of a LightSpeed CT750 HD Computed Tomography System, Proc. SPIE 7258, 72584S (2009).
22. K. L. Boedeker, V. N. Cooper, and M. F. McNitt-Gray, " Application of the noise power spectrum in modern diagnostic MDCT: Part I. Measurement of noise power spectra and noise equivalent quanta.," Phys. Med. Biol. 0031-9155 52, 4027-4046 (2007). 10.1088/0031-9155/52/14/002 (Pubitemid 47134624)
23. S. J. Riederer, N. J. Pelc, and D. A. Chesler, " The noise power spectrum in computed x-ray tomography.," Phys. Med. Biol. 0031-9155 23, 446-454 (1978). 10.1088/0031-9155/23/3/008 (Pubitemid 8325901)
24. C. J. Bischof and J. C. Ehrhardt, " Modulation transfer function of the EMI CT head scanner.," Med. Phys. 0094-2405 4, 163-167 (1977). 10.1118/1.594305
25. K. M. Hanson, " Detectability in computed tomographic images.," Med. Phys. 0094-2405 6, 441-451 (1979). 10.1118/1.594534 (Pubitemid 10244108)
26. N. Mohanty, Random Signals Estimation and Identification (Van Nostrand Reinhold, New York, 1986), pp. 109-197, 319-396.
27. M. B. Priestley, Spectral Analysis and Time Series (Elsevier, London, 1983), pp. 389-449.
28. I. A. Cunningham and R. Shaw, " Signal-to-noise optimization of medical imaging systems.," J. Opt. Soc. Am. A 0740-3232 16, 621-632 (1999). 10.1364/JOSAA.16.000621 (Pubitemid 129582209)
29. H Jiang, W. R. Chen, and H. Liu, " Techniques to improve the accuracy and to reduce the variance in noise power spectrum measurement.," IEEE Trans. Biomed. Eng. 0018-9294 49, 1270-1278 (2002). 10.1109/TBME.2002. 804595 (Pubitemid 35304165)
30. J. H. Hubbell and S. M. Seltzer, " Tables of x-ray mass attenuation coefficients and mass energy-absorption coefficients from 1 keV to 20 meV for elements z=1 to 92 and 48 additional substances of dosimetric interest. " (National Institute of Standards and Technology, 2004).
31. R. E. Alvarez and J. Peter Stonestrom, " Optimal processing of computed tomography images using experimentally measured noise properties.," J. Comput. Assist. Tomogr. 0363-8715 3, 77-84 (1979). 10.1097/00004728-197902000-00013 (Pubitemid 9108671)
32. See supplementary material at E-MPHYA6-38-016103 for the derivation of the dependency of HU on keV and iodine concentration in Eq.