Dual energy exposure control (DEEC) for computed tomography: Algorithm and simulation study

Medical Physics

Volumn 35, Issue 11, 2008, Pages 5054-5060

  Stenner, Philip ^a   Kachelrieß, Marc ^a  

^a UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

Author keywords

Computed tomography; Dual energy CT; Image quality; Material decomposition; Patient dose; Tube current modulation

Indexed keywords

IMAGE QUALITY; MODULATION; NOISE ABATEMENT;

ATTENUATION CORRECTION; DECOMPOSITION PROCESS; DUAL-ENERGY CT; LUNG NODULE DETECTION; MATERIAL DECOMPOSITION; NOISE REDUCTION TECHNIQUE; PATIENT DOSE; TUBE CURRENT MODULATIONS;

COMPUTERIZED TOMOGRAPHY;

ARTICLE; COMPUTED TOMOGRAPHY SCANNER; COMPUTER ASSISTED TOMOGRAPHY; DUAL ENERGY COMPUTER ASSISTED TOMOGRAPHY; HUMAN; IMAGE QUALITY; IMAGING SYSTEM; LUNG; MICRO-COMPUTED TOMOGRAPHY; MOUSE; NONHUMAN; PHANTOM; PRIORITY JOURNAL; RADIATION DOSE; SPIRAL COMPUTER ASSISTED TOMOGRAPHY; THORAX;

EID: 54949136584     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2982150     Document Type: Article

References (16)

1. R. Alvarez and A. Macovski, " Energy-selective reconstructions in x-ray CT.," Phys. Med. Biol. 21 (5), 733-744 (1976).
2. R. Alvarez and E. Seppi, " A comparison of noise and dose in conventional and energy selective computed tomography.," IEEE Trans. Nucl. Sci. NS-26 (2), 2853-2856 (1979).
3. A. Coleman and M. Sinclair, " A beam-hardening correction using dual-energy computed tomography.," Phys. Med. Biol. 30 (11), 1251-1256 (1985).
4. W. A. Kalender, W. Perman, J. Vetter, and E. Klotz, " Evaluation of a prototype dual-energy computed tomographic apparatus. I. Phantom studies.," Med. Phys. 13 (3), 334-339 (1986).
5. J. Vetter, W. Perman, W. A. Kalender, R. Mazess, and J. Holden, " Evaluation of a prototype dual-energy computed tomographic apparatus. II. Determination of vertebral bone mineral content.," Med. Phys. 13 (3), 340-343 (1986).
6. W. A. Kalender, E. Klotz, and L. Kostaridou, " An algorithm for noise suppression in dual energy CT material density images.," IEEE Trans. Med. Imaging 7 (3), 218-224 (1988).
7. P. Stenner, T. Berkus, and M. Kachelrieß, " Empirical dual energy calibration (EDEC) for cone-beam computed tomography.," Med. Phys. 34 (9), 3630-3641 (2007).
8. S. Richard and J. H. Siewerdsen, " Cascaded systems analysis of noise reduction algorithms in dual-energy imaging.," Med. Phys. 35 (2), 586-600 (2008).
9. N. Shkumat, J. Siewerdsen, S. Richard, N. Paul, J. Yorkston, and R. Van Metter, " Dual-energy imaging of the chest: Optimization of image acquisition techniques for the 'bone-only' image.," Med. Phys. 35 (2), 629-632 (2008).
10. H. N. Cardinal and A. Fenster, " An accurate method for direct dual-energy calibration and decomposition.," Med. Phys. 17 (3), 327-341 (1990).
11. C. K. Wong and H. Huang, " Calibration procedure in dual-energy scanning using the basis function technique.," Med. Phys. 10 (5), 628-635 (1983).
12. M. Gies, W. A. Kalender, H. Wolf, C. Suess, and M. T. Madsen, " Dose reduction in CT by anatomically adapted tube current modulation. I. Simulation studies.," Med. Phys. 26 (11), 2235-2247 (1999).
13. D. M. Tucker, G. T. Barnes, and D. P. Chakraborty, " Semiempirical model for generating tungsten target x-ray spectra.," Med. Phys. 18 (3), 211-218 (1991).
14. T. R. C. Johnson, B. Krauß, 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. 17, 1510-1517 (2007).
15. L. Yu, G. Lucas, A. Primak, D. Oleksandr, X. Liu, and C. McCollough, " Dual-source dual-energy CT (DECT) combined images can provide improved image quality relative to single-energy CT with no increase in patient dose.," Radiological Society of North America: 93rd Scientific Assembly and Annual Meeting Program, SSA16-06, Nov. 2007, p. 269.
16. L. M. Hamberg, J. T. Rhea, G. J. Hunter, and J. H. Thrall, " Multi-detector row CT: Radiation dose characteristics.," Radiology 226 (3), 762-772 (2003).