METHOD AND DEVICE FOR PERFORMING A COMPARISON BETWEEN A LEFT AND A RIGHT HALF OF THE BRAIN OF A PATIENT
First Claim
1. A method for performing a comparison between a left and a right half of the brain of a patient, comprising:
- providing a time series with a number p of medical 2D or 3D image data records for determining the perfusion, wherein a head of the patient with a brain comprising a right and a left half of the brain is imaged to create each of the image data records, and wherein each of the image data records comprise a multiplicity of picture elements with assigned picture element values;
determining a subdivision of the brain of the patient into brain regions, wherein a number of the brain regions is an even number n, a number n/2 of the brain regions being arranged in the right half of the brain and a number n/2 of the brain regions being arranged in the left half of the brain, with each of the brain regions arranged in the right half of the brain being unambiguously assigned to a brain region arranged in the left half of the brain, and with the brain being subdivided by planes standing perpendicularly on a median sagittal plane;
segmenting the p image data records such that one brain image data record is generated per one of the p image data records, the brain image data record only comprising picture elements of the image data record which represent the brain of the patient;
determining n partial image data records in each of the p brain image data records, wherein an m-th partial image data record only comprises picture elements of the respective brain image data record, which represent an m-th of the n brain regions, with m=1 . . . n;
calculating one or more characteristic values per m-th brain region by evaluating all m-th partial image data records in the p brain image data records according to an evaluation method, with m=1 . . . n; and
evaluating the characteristic values of brain regions unambiguously assigned to one another according to criteria for comparing the right and left half of the brain.
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Accused Products
Abstract
In order to compare a left and a right half of the brain of a patient on the basis of medical 2D or 3D image data records for determining the perfusion, the brain of the patient is subdivided into brain regions, wherein the number of brain regions is an even number n, a number n/2 of the brain regions being arranged in the right half of the brain and a number n/2 of the brain regions being arranged in the left half of the brain, with each of the brain regions arranged in the right half of the brain being unambiguously assigned to a brain region arranged in the left half of the brain, and the brain being subdivided by planes standing perpendicularly on a median sagittal plane. In at least one embodiment, the image data records are segmented, wherein brain image data records are generated which only include those picture elements of the image data records which represent the brain of the patient. In at least one embodiment, n partial image data records are determined in each of the brain image data records, wherein an m-th partial image data record only include those picture elements of the respective brain image data record, which represent an m-th of the n brain regions, with m=1 . . . n. In at least one embodiment, one or more characteristic values are calculated per m-th brain region by evaluating all m-th partial image data records according to a prescribed evaluation method. Finally, in at least one embodiment, the characteristic values of brain regions unambiguously assigned to one another are evaluated according to predetermined criteria for comparing the right and left half of the brain.
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Citations
28 Claims
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1. A method for performing a comparison between a left and a right half of the brain of a patient, comprising:
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providing a time series with a number p of medical 2D or 3D image data records for determining the perfusion, wherein a head of the patient with a brain comprising a right and a left half of the brain is imaged to create each of the image data records, and wherein each of the image data records comprise a multiplicity of picture elements with assigned picture element values; determining a subdivision of the brain of the patient into brain regions, wherein a number of the brain regions is an even number n, a number n/2 of the brain regions being arranged in the right half of the brain and a number n/2 of the brain regions being arranged in the left half of the brain, with each of the brain regions arranged in the right half of the brain being unambiguously assigned to a brain region arranged in the left half of the brain, and with the brain being subdivided by planes standing perpendicularly on a median sagittal plane; segmenting the p image data records such that one brain image data record is generated per one of the p image data records, the brain image data record only comprising picture elements of the image data record which represent the brain of the patient; determining n partial image data records in each of the p brain image data records, wherein an m-th partial image data record only comprises picture elements of the respective brain image data record, which represent an m-th of the n brain regions, with m=1 . . . n; calculating one or more characteristic values per m-th brain region by evaluating all m-th partial image data records in the p brain image data records according to an evaluation method, with m=1 . . . n; and evaluating the characteristic values of brain regions unambiguously assigned to one another according to criteria for comparing the right and left half of the brain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 22, 23, 24)
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16. A device for performing a comparison between a left and a right half of the brain of a patient, comprising:
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a storage medium adapted to store and provide a time series with a number p of medical 2D or 3D image data records for determining the perfusion, wherein a head of the patient with a brain comprising a right and a left half of the brain is imaged to create each of the image data records, and wherein each of the image data records comprise a multiplicity of picture elements with assigned picture element values; a first module to determines a subdivision of the brain of the patient into brain regions, wherein a number of the brain regions is an even number n, a number n/2 of the brain regions being arranged in the right half of the brain and a number n/2 of the brain regions being arranged in the left half of the brain, with each of the brain regions arranged in the right half of the brain being unambiguously assigned to a brain region arranged in the left half of the brain, and with the brain being subdivided by planes standing perpendicularly on a median sagittal plane; a second module adapted to segment the p image data records such that one brain image data record is generated per one of the p image data records, the brain image data record only comprising those picture elements of the image data record which represent the brain of the patient; a third module adapted to determines n partial image data records in each of the p brain image data records, wherein an m-th partial image data record only comprises picture elements of the respective brain image data record, which represent an m-th of the n brain regions, with m=1 . . . n; a fourth module adapted to calculate one or more characteristic values per m-th brain region by evaluating all m-th partial image data records in the p brain image data records according to an evaluation method, with m=1 . . . n; and a fifth module adapted to evaluate the characteristic values of brain regions unambiguously assigned to one another according to criteria for comparing the right and left half of the brain. - View Dependent Claims (17, 18, 19, 20, 21, 25, 26, 27, 28)
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Specification