Fractional scan algorithms for low-dose perfusion CT

Medical Physics

Volumn 31, Issue 5, 2004, Pages 1254-1257

  Hsieh, Jiang ^a   Wei, Yuchuan ^b   Wang, Ge ^b  

^a GE MEDICAL SYSTEMS   (United States)

^b UNIVERSITY OF IOWA   (United States)

Author keywords

CT perfusion; FBP; OSEM; X ray dose

Indexed keywords

X RAY TUBES; X RAYS;

ACQUISITION MODES; ANATOMICAL LOCATIONS; CT PERFUSION; IMAGE PREDICTION; INTERPOLATION ALGORITHMS; OSEM; X-RAY DOSE; X-RAY TUBE CURRENT;

COMPUTERIZED TOMOGRAPHY;

CONTRAST MEDIUM;

ARTICLE; COMPUTER ASSISTED TOMOGRAPHY; IMAGE RECONSTRUCTION; PERFUSION; PRIORITY JOURNAL; RADIATION DOSE FRACTIONATION; RADIATION EXPOSURE; X RAY;

EID: 2442642760     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.1708653     Document Type: Article

References (12)

1. J. Hsieh, Computed Tomography: Principles, Design, Artifacts, and Recent Advances (SPIE, Bellingham, WA, 2003), Secs. 11.4 and 3.7.
2. K. A. Miles and M. R. Griffiths, "Perfusion CT: a worthwhile enhancement," Br. J. Radiol. 76, 220-231 (2003).
3. D. Nabavi et al., "CT assessment of cerebral perfusion: Experimental validation and initial clinical experience," Radiology 213, 141-149 (1999).
4. J. Hsieh, "Adaptive streak artifact reduction in computed tomography resulting from excessive x-ray photon noise," Med. Phys. 25, 2139-2147 (1998).
5. L. A. Shepp and Y. Vardi, "Maximum likelihood restoration for emission tomography," IEEE Trans. Med. Imaging 1, 113-122 (1982).
6. D. L. Snyder, T. J. Schulz, and J. A. O'Sullivan, "Deblurring subject to nonnegativity constraints," IEEE Trans. Signal Process. 40, 1143-1150 (1992).
7. M. Jiang and G. Wang, "Development of iterative algorithms for image reconstruction," J. X-Ray Sci. Technol. 10, 77-86 (2002).
8. H. M. Hudson and R. S. Larkin, "Accelerated image reconstruction using ordered subsets of projection data," IEEE Trans. Med. Imaging 13, 601-609 (1994).
9. J. A. Fessler, "Statistical image reconstruction methods for transmission tomography," in Handbook of Medical Imaging, Vol. 2, Medical Imaging Processing and Analysis, edited by M. Sonka and J. M. Fitzpatrick (SPIE, Bellingham, 2000), pp. 1-70.
10. R. T. Yao et al., "Performance characteristics of the 3-D OSEM algorithm in the reconstruction of small animal PET images," IEEE Trans. Med. Imaging 19(8), 798-804 (2000).
11. D. S. Lalush and B. M. W. Tsui, "Performance of ordered-subset reconstruction algorithms under conditions of extreme attenuation and truncation in myocardial SPECT," J. Nucl. Med. 41(4), 737-744 (2000).
12. A. K. Jain, Fundamentals of Digital Image Processing (Prentice-Hall, Englewood Cliffs, NJ, 1989), pp. 246-248.