Multimodal image reconstruction
AssigneeSiemens Medical Solutions USA, Inc.
InventorsAlexander Hans Vija, Amos Yahil
Life of this patent
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Abstract
Computer-implemented methods of reconstructing an image object for a measured object in object space from image data in data space include causing a computer to execute instructions for providing zonal information separating the object space into at least two zones, providing at least two zonal image objects, each zonal image object being associated with one of the at least two zones, reconstructing the image object using a data model derived from forward projecting the zonal image objects into data space, wherein the contribution of each zonal image object to the data model is weighted according to a zonal scaling factor, and outputting the image object.
Claims26
A computer-implemented method of reconstructing an image object for a measured object in object space from image data in data space during a reconstruction process, the method comprising causing a computer to execute instructions for:
- separating the object space into at least two zones using data from a first modality representing anatomical information;
- providing at least two zonal image objects using data from a second modality different than the first modality, each of the zonal image objects defined by a respective one of the at least two zones;
- reconstructing the image object using a data model derived from separately forward projecting the data from the second modality as each of the zonal image objects into data space, combining results of the separate forward projecting, and back-projecting the data of the second modality from the combined results;
- and
- outputting the image object.
An imaging device for performing zonal imaging during a reconstruction process comprising:
- a detector unit for detecting a functional signal from a measured object within a detecting area and providing image data in data space indicative of the detected signal;
- and
- a reconstruction unit for reconstructing an image object in object space from the image data, the reconstructing unit configured to;
- receive zonal information from a CT or MR modality separating the object space of the functional signal into at least two zones;
- reconstruct an image object from the image data under the consideration that portions of the functional signal are associated with the zones, wherein the reconstruction includes separately forward projecting the functional signal with spatial constraints by zone defined by the zonal information;
- and
- provide the image object at an output of the reconstruction unit.
Dependencies are inferred from the claim text.