Methods and apparatus for defining regions of interest
AssigneeGE Medical Systems Global Technology Company, LLC
InventorsJerome Francois Knoplioch, Gilles R. Moris, James Donald Markvicka
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Abstract
A method for interactively creating a region of interest of a reconstructed image includes defining a thickness value, defining a polygon, and defining a 3D projection geometry. The method also includes defining a vector perpendicular to a line of sight which is defined by the 3D projection geometry, swiping the vector along the polygon to create a surface of interest, and displaying three dimensionally a plurality of points wherein a distance from the points to the created surface along the line of sight is approximately the defined thickness value or less.
Claims28
A method for interactively creating a region of interest of a reconstructed image comprising:
- defining a thickness value;
- defining a polygon;
- defining a 3D projection geometry;
- defining a vector perpendicular to a line of sight which is defined by the 3D projection geometry;
- swiping the vector along the polygon to create a surface of interest;
- and
- displaying three dimensionally a plurality of points wherein a distance from the points to the created surface along the line of sight is approximately the defined thickness value or less.
A method for interactively creating a region of interest of a reconstructed image comprising:
- defining a thickness value;
- defining a polygon;
- defining a 3D projection geometry;
- defining a vector perpendicular to a line of sight which is defined by the 3D projection geometry;
- swiping the vector along the polygon to define a surface;
- swiping the surface along the line of sight to create a volume of interest;
- intersecting the volume of interest with a three dimension data set;
- and
- three dimensionally displaying the intersection.
A scanning system comprising:
- a radiation source;
- a radiation detector positioned to receive radiation emitted from said source;
- and
- a processor operationally coupled to said detector, said processor configured to:
- receive a thickness value;
- define a polygon;
- receive a 3D projection geometry definition;
- define a vector perpendicular to a line of sight which is defined by the 3D projection geometry;
- swipe the vector along the polygon to create a surface of interest;
- and display three dimensionally a plurality of points wherein a distance from the points to the created surface along the line of sight is approximately the defined thickness value or less.
A scanning system comprising:
- a radiation source;
- a radiation detector positioned to receive radiation emitted from said source;
- and
- a processor operationally coupled to said detector, said processor configured to:
- receive a thickness value;
- define a polygon;
- define a 3D projection geometry;
- define a vector perpendicular to a line of sight which is defined by the 3D projection geometry;
- swipe the vector along the polygon to define a surface;
- swipe the surface along the line of sight to create a volume of interest;
- intersect the volume of interest with a three dimension data set;
- and
- display three dimensionally the intersection.
Dependencies are inferred from the claim text.