PATENT CLAIM ANALYSIS

Application Number: 15927843
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["378", "009000"]

Abstract:
Imaging guided radiation treatment apparatus and methods are described. A method includes processing a first population of x-ray cone beam projection images to compute therefrom a time sequence of sliding-window tomographic image volumes characterized in that each subsequent member of the time sequence is computed using at least one same x-ray cone beam projection image as used in computing at least one previous member of the time sequence. The method also includes operating an IGRT apparatus to deliver treatment radiation to the target based at least in part on a comparison between at least one of the time sequence of sliding-window tomographic image volumes and a pre-acquired image data set.

Claim (Index 16):
A non-transitory machine readable medium that, when executed by a processing unit, cause the processing unit to:\n receive a pre-acquired image data set of a target acquired in a reference frame generally independent of a reference frame of an image guided radiation treatment (IGRT) apparatus; during a patient setup interval, position the target into an initial treatment position relative to the IGRT apparatus, the initial treatment position being along an axis of rotation of a rotatable gantry structure of the IGRT apparatus; rotate the rotatable gantry structure through a range of gantry angles; subsequent to the patient setup interval, operate a first x-ray cone beam imaging source and a first imaging detector to acquire a first population of x-ray cone beam projection images of the target for a respective first population of gantry angles and acquisition times; process, by the processing unit, the first population of x-ray cone beam projection images to compute therefrom a time sequence of sliding-window tomographic image volumes characterized in that each subsequent member of the time sequence is computed using at least one same x-ray cone beam projection image as used in computing at least one previous member of the time sequence, wherein the sliding-window tomographic image volume comprises a CBCT image volume; and operate the IGRT apparatus to deliver treatment radiation to the target based at least in part on a comparison between at least one of the time sequence of sliding-window tomographic image volumes and the pre-acquired image data set.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 90.0
- Lexical Diversity: 1.73846
- Patent Class: 378.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13033584', '14548095', '15078553', '15875683', '15194978']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.78022377965996
- 35 USC 102 Novelty (BERT): 0.5698387624011688
- Combined Prediction Score: 0.759185277934081
- Mean Citation Score: 506.545842
- Max Citation Score: 551.0097
- Similarity Product: 493.6354082630396

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

Dataset: test