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SYSTÈMES ET PROCÉDÉS DE VOXELISATION AUTOMATIQUE DE RÉGIONS D'INTÉRÊT POUR UNE SPECTROSCOPIE PAR RÉSONANCE MAGNÉTIQUE
专利权人:
NOCIMED; LLC
发明人:
CLAUDE, JOHN, P.,PEACOCK, JAMES, C.,KANE, PAUL, H.
申请号:
EP14774268
公开号:
EP2973224A4
申请日:
2014.03.10
申请国别(地区):
EP
年份:
2016
代理人:
摘要:
A system and method for automating an appropriate voxel prescription in a uniquely definable region of interest (ROI) in a tissue of a patient is provided, such as for purpose of conducting magnetic resonance spectroscopy (MRS) in the ROI. The dimensions and coordinates of a single three dimensional rectilinear volume (voxel) within a single region of interest (ROI) are automatically identified. This is done, in some embodiments by: (1) applying statistically identified ROI search areas within a field of view (FOV); (2) image processing an MRI image to smooth the background and enhance a particular structure useful to define the ROI; (3) identifying a population of pixels that define the particular structure; (4) performing a statistical analysis of the pixel population to fit a 2D model such as an ellipsoid to the population and subsequently fit a rectilinear shape within the model; (5) repetiting elements (1) through (4) using multiple images that encompass the 3D ROI to create a 3D rectilinear shape; (6) a repetition of elements (1) through (5) for multiple ROIs with a common FOV. A manual interface may also be provided, allowing for override to replace by manual prescription, assistance to identify structures (e.g. clicking on disc levels), or modifying the automated voxel (e.g. modify location, shape, or one or more dimensions).
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