Method and system for image analysis of selected tissue structures

摘要

A method for analyzing a sample comprising a first material and a second material of generally different densities and having a junction therebetween, the method comprising defining a region of interest in a cross sectional image of at least a portion of the sample that includes said junction, determining a density profile of the sample within the region of interest and crossing the junction, determining a representative density of said second material, and analyzing said sample using said junction used to distinguish said first and second materials.

主权项

1. A computer-implemented method for analysing a sample comprising a first material and a second material of generally different densities and having a junction therebetween, the method comprising:
defining automatically a plurality of regions of interest within an image of the sample, each of said regions of interest having a width of one or more voxels or pixels; determining respective density, intensity or attenuation profiles within the regions of interest; determining a location of said junction including defining a first reference point (xi, 0) within one of said first and second materials and employing the first reference point as current reference point, and
(i) determining a closest point to said current reference point that is on said respective profile and in the other of said first and second materials to that of the current reference point;(ii) locating a greatest difference in values of the respective profile between an adjacent peak and trough in a segment of the respective profile between said current reference point and said closest point; and(iii) locating a point of inflexion in said segment.