PATENT CLAIM ANALYSIS

Application Number: 15936039
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-03
Patent Classification: ["600", "429000"]

Abstract:
According to at least one aspect, a method for computed tomography (CT) fluoroscopy can include acquiring a plurality of pairs of projections of an interventional device using CT fluoroscopy. Each pair of the projections can be obtained at a predetermined first angular separation greater than a second angular separation used for a full dose CT scan of a target object, by rotating a gantry of a CT scanner. The method can include identifying a position of the interventional device in real time for each pair of the projections, using back-projection of images of the interventional device from the respective pair of projections. The method can include superimposing an image of the interventional device on a 3-D image of an anatomical region at an identified position of the interventional device.

Claim (Index 29):
A computed tomography (CT) scanner system for CT fluoroscopy, the CT scanner system comprising:\n a rotating gantry including at least one x-ray source-detector pair; a processor; and a memory storing computer executable instructions thereon, the computer executable instructions when executed by the processor cause the processor to:\n acquire, by rotating the gantry and using CT fluoroscopy, a plurality of projection images of an interventional device penetrating a region of interest (ROI) at a first rate of angular projections per gantry rotation that is at least two times smaller than a second rate of angular projections per gantry rotation used for one or more full dose CT scans; \n identify, for each of two or more projection images among the plurality of projection images, a corresponding image region indicative of the interventional device in the projection image; \n determine, for the two or more projection images, a corresponding position of the interventional device in a three-dimensional (3-D) space associated with the ROI, using an intersection of representations of the corresponding image regions indicative of the interventional device when back projected into the 3-D space; \n superimpose, for the two or more projection images, a corresponding 2-D or 3-D image of the interventional device on a 2-D or 3-D CT image of the ROI according to the corresponding determined position of the interventional device to produce a 2-D or 3-D image illustrating a location of the interventional device relative to a target region within the ROI over time, the 2-D or 3-D CT image of the ROI generated using projection data of the one or more full dose CT scans; and \n display the produced 2-D or 3-D image for use to determine a position or to guide movement of the interventional device relative to the target region.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.02941
- Patent Class: 600.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15831051', '12419801', '13521237', '15211448', '15429459']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4652694834823421
- 35 USC 102 Novelty (BERT): 0.5507445854046518
- Combined Prediction Score: 0.4738169936745731
- Mean Citation Score: 258.631636
- Max Citation Score: 446.64554
- Similarity Product: 357.28004484708543

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

Dataset: test