PATENT CLAIM ANALYSIS

Application Number: 15742902
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["324", "309000"]

Abstract:
The invention relates to a method of MR imaging of an object ( 10 ) placed in the examination volume of a MR device ( 1 ). It is an object of the invention to provide a method that enables efficient motion-compensation and/or motion-correction and that is compatible with Cartesian sampling of k-space. The method of the invention comprises: —generating MR signals by subjecting the object ( 10 ) to a MR imaging sequence of at least one RF pulse and switched magnetic field gradients; —acquiring the MR signals as a plurality of temporally successive subsets, each subset comprising a number of k-space profiles with sub-sampling of k-space, wherein the subsets complement each other to form a fully sampled set of k-space profiles; —reconstructing a single-subset MR image from each subset; —computing a gradient MR image from each single-subset MR image; and —detecting motion by comparing the gradient MR images with each other. Moreover, the invention relates to a MR device ( 1 ) and to a computer program for a MR device ( 1 ).

Claim (Index 15):
A magnetic resonance (MR) device including at least one main magnet coil for generating a uniform, steady magnetic field B0 within an examination volume, a number of gradient coils for generating switched magnetic field gradients in different spatial directions within the examination volume, at least one RF coil for generating RF pulses within the examination volume and/or for receiving MR signals from an object positioned in the examination volume, a control unit for controlling the temporal succession of RF pulses and switched magnetic field gradients, and a reconstruction unit for reconstructing MR images from the received MR signals, wherein the MR device is configured to perform the following steps:\n generating MR signals by subjecting the object to a MR imaging sequence of at least one RF pulse and switched magnetic field gradients; acquiring the MR signals as a plurality of temporally successive subsets, each subset comprising a number of k-space profiles with sub-sampling of k-space, wherein the subsets complement each other to form a fully sampled set of k-space profiles; reconstructing a single-subset MR image from each subset; computing a gradient MR image from each single-subset MR image; and detecting motion by comparing the gradient MR images with each other.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 86.0
- Lexical Diversity: 2.13636
- Patent Class: 324.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15102560', '15312805', '15105297', '15580402', '12307618']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6203394084404911
- 35 USC 102 Novelty (BERT): 0.528766595017512
- Combined Prediction Score: 0.6111821270981932
- Mean Citation Score: 334.35933
- Max Citation Score: 378.81766
- Similarity Product: 370.1511406461834

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