PATENT CLAIM ANALYSIS

Application Number: 15756605
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["382", "131000"]

Abstract:
The invention relates to a CT image generation apparatus ( 10 ) for generating an image of a head. Transformations of a first CT image of the head are determined for different measured projection groups, wherein for a measured projection group a transformation is determined such that a degree of similarity between the measured projection group and a calculated projection group is increased, wherein the calculated projection group is calculated by transforming the first CT image in accordance with the transformation to be determined and by forward projecting the transformed first CT image. A motion corrected three-dimensional second CT image is reconstructed based on the measured projections and the transformations determined for the different measured projection groups. This allows providing a high quality CT image of the head, even if a patient cannot stop moving the head in case of, for instance, stroke.

Claim (Index 10):
The computed tomography image generation apparatus as defined in  claim 1 , wherein:\n the reconstruction unit is adapted to divide the measured projections into several sets of measured projections, wherein each set includes temporally adjacent measured projections, and to reconstruct several three-dimensional first computed tomography images of the head based on the several sets of measured projections, wherein a respective first computed tomography image is reconstructed based on a respective set of measured projections, the transformation determination unit is adapted to determine for each first computed tomography image a set of three-dimensional transformations of the respective first computed tomography image of the head for different measured projection groups, wherein a measured projection group comprises one or several measured projections of the respective set of measured projections, wherein the transformation determination unit is adapted to determine for a certain measured projection group of the respective set of measured projections a transformation such that a degree of similarity between the certain measured projection group and a calculated projection group is increased, wherein the calculated projection group corresponds to the certain measured projection group and is calculated by transforming the respective first computed tomography image in accordance with the transformation to be determined and by forward projecting the transformed respective first computed tomography image, the reconstruction unit is adapted to reconstruct a motion corrected three-dimensional second computed tomography image based on the measured projections and the several sets of transformations determined for the different measured projection groups of the several sets of measured projections.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.06757
- Patent Class: 382.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12093458', '12452089', '15104003', '12978093', '11815606']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3665492844365426
- 35 USC 102 Novelty (BERT): 0.4972325238922855
- Combined Prediction Score: 0.3796176083821169
- Mean Citation Score: 232.707228
- Max Citation Score: 244.85484
- Similarity Product: 179.87127216686008

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test