Data Processing Of Dual-Energy Scans

Rodney A. Brooks

doi:10.1117/12.955956

27 December 1977 Data Processing Of Dual-Energy Scans

Rodney A. Brooks

Proceedings Volume 0127, Application of Optical Instrumentation in Medicine VI; (1977) https://doi.org/10.1117/12.955956
Event: Application of Optical Instrumentation in Medicine VI, 1977, Boston, United States

Abstract

A method for analyzing dual-energy computed tomograms is presented. The method requires three calibration values at each energy: air, water, and a KI solution. The first two values are used to convert the CT numbers to the ideal Hounsfield scale. The KI value is used to calculate quality factor Q that describes the effective x-ray spectrum. By using the Q-values, the Compton and photoelectric coefficients of any tissue or material may be easily obtained. One can further calculate the electron density and effective atomic number, if desired, and perform chemical identification.

Citation Download Citation

Rodney A. Brooks "Data Processing Of Dual-Energy Scans", Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); https://doi.org/10.1117/12.955956

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