Patent ID: 11908174
Assignee: GE PRECISION HEALTHCARE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A system comprising:
a non-transitory memory, wherein the non-transitory memory stores instructions, and a trained machine learning model;
a display device; and
a processor, wherein the processor is communicably coupled to the non-transitory memory and the display device, and wherein the processor, when executing the instructions, is configured to:
receive a localizer image of an imaging subject and a plurality of image slices corresponding to the localizer image;
map the localizer image to one or more bounding boxes using the trained machine learning model;
post-process the one or more bounding boxes to produce a coherent set of bounding boxes;
resolve boundaries of the coherent set of bounding boxes to produce a plurality of non-intersecting regions;
correlate coordinates of a region of the plurality of non-intersecting regions from a coordinate system of the localizer image to a coordinate system of the plurality of image slices to produce an image slice coordinate range;
label a subset of the plurality of image slices as belonging to the region of the imaging subject based on the image slice coordinate range; and
displaying the subset of the plurality of image slices via the display device;

wherein the processor is configured to correlate coordinates of the region of the plurality of non-intersecting regions from the coordinate system of the localizer image to the coordinate system of the plurality of image slices to produce the image slice coordinate range by:
mapping a first boundary and a second boundary of the region from a first axis in the coordinate system of the localizer image, to a second axis in the coordinate system of the plurality of image slices, to produce the image slice coordinate range,

wherein a mapping between the first axis and the second axis is given by:, Z
   k
  
  =
  
   
    Z
    ref
   
   +
   
    
     Y
     k
    
    *
    
     Spacing
     
      Z
      Y
     
    
    *
    cos
    ⁢
      
    θ, where Zk is a distance of a point k along the second axis, Zref is an offset between an origin of the first axis and an origin of the second axis, Yk is a distance of the point k along the first axis, Spacing is a ratio between distance along the second axis and distance along the first axis, and θ is an angle between the first axis and the second axis.