Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-05-31
2010-12-28
Tabatabai, Abolfazl (Department: 2624)
Image analysis
Applications
Biomedical applications
C378S092000, C378S101000, C600S425000, C600S481000
Reexamination Certificate
active
07860288
ABSTRACT:
A sequence of groups of projection images shows an object under examination comprising a vascular system and its environment. A computer determines a 2-dimensional evaluation image having a plurality of pixels based on combination images determined from the projection images of a group. The combination images have a plurality of pixels with pixel values. The sequence of the combination images shows the time characteristic of the distribution of a contrast medium in the object. The pixels of the evaluation image correspond to those of the projection images. The computer assigns each pixel, at least in a part area of the evaluation image, a type that is characteristic of whether the respective pixel corresponds to a vessel of the vascular system, a perfusion area or a background. It performs the assignment of the type on the basis of the time characteristic of the pixel values of the combination images.
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Bernhardt Philipp
Camus Estelle
Hoheisel Martin
Redel Thomas
Siemens Aktiengesellschaft
Tabatabai Abolfazl
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