Patent ID: 6320378
Filing Date: 2001-11-20
Classification: G01R

Abstract:
A method for identifying and replacing missing or deteriorated images, image portions, image lines and/or segments of image lines in a database of signals representative of a time sequenced series of magnetic resonance images of a selected field of view obtained by a single-shot line-scan imaging technique and/or another single-shot imaging technique without shot-to-shot phase encoding, wherein each said image includes a plurality of mutually parallel lines, said method comprising the steps of:sequentially incrementally dividing each image of said field of view into smaller and smaller fractional portions until a preselected minimum portion size is reached;projecting each said portion of each said image along a read direction so as to form an associated summation profile;identifying points along each said associated summation profile having signal amplitudes that are less than a preselected threshold percentage of the signal amplitude of the nearest neighboring points in space and time thereto in said profile;forming a bit map of the image, image portion, image line and/or segments of image lines represented by said identified points; andinterpolating replacement images, image portions, image lines and/or segments of image lines for said identified images, image portions, image lines and/or segments of image lines using said nearest neighbor images, image portions, image lines and/or segments of image lines.