Quantitative material decomposition for spectral CT

Details Quantitative material decomposition for spectral CT Quantitative material decomposition for spectral CT

2006-09-12

2009-12-01

Kao, Chih-Cheng G (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

Reexamination Certificate

active

07627080

ABSTRACT:
A data processing method for use in an imaging system is described. The method includes determining a special footprint of an unknown mixture of substances from a first region and using the spectral footprint to decomposition of second region.

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Goh, K. L., et al.; Energy-dependent systematic errors in dual-energy x-ray CT; 1997; IEEE Trans. on Nuclear Science; 44(2)212-217.
Goh, K. L., et al.; Correction of energy-dependent systematic errors in dual-energy X-ray CT using a basis material coefficients transformation method; 1997; IEEE Trans. on Nuclear Science; 44(6)2419-2424.
Hassler, U., et al.; X-ray dual-energy calibration based on estimated spectral properties of the experimental system; 1998; IEEE Trans. on Nuclear Science; 45(3)1699-1712.
Kalender, W. A., et al.; Evaluation of a prototype dual-energy computed tomographic apparatus. I. Phantom studies; 1986; Am. Assoc. Phys. Med.; 13(3)334-339.

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