Method for preparing reconstructed CT image data records and CT system

作者: Björn Dr. Heismann

DOI:

关键词: WeightingObject (computer science)AttenuationData recordsMathematicsArtificial intelligenceImage (mathematics)Basis (linear algebra)Material distributionRegion of interestComputer vision

摘要: A method and CT system are disclosed for preparing reconstructed image data records. In at least one embodiment of the method, an initial material distribution examination object is determined from records among two different spectral weightings with local energy-determined attenuation values, measurement-spectrum-dependent weighting functions using this distribution, enabling to be calculated, reference materials determined, help plausibility considerations, a list over specified region interest in on basis previously calculated functions.

参考文章(12)
Peter Michael Edic, J. Eric Tkaczyk, William Macomber Leue, Xiaoye Wu, Pierfrancesco Landolfi, Joseph Bendahan, Deborah Walter, Walter Irving Garms, Sussan Pourjavid-Granfors, Image-based material decomposition ,(2006)
R E Alvarez, A Macovski, Energy-selective reconstructions in X-ray computerised tomography Physics in Medicine and Biology. ,vol. 21, pp. 733- 744 ,(1976) , 10.1088/0031-9155/21/5/002
Robert E. Alvarez, Albert Macovski, Noise And Dose In Energy Dependent Computerized Tomography Application of Optical Instrumentation in Medicine V. ,vol. 0096, pp. 131- 137 ,(1976) , 10.1117/12.965404
B. J. Heismann, J. Leppert, K. Stierstorfer, Density and atomic number measurements with spectral x-ray attenuation method Journal of Applied Physics. ,vol. 94, pp. 2073- 2079 ,(2003) , 10.1063/1.1586963
Mario Reinwand, Karl Stierstorfer, X-ray computed tomography apparatus ,(2001)