| 摘要 |
A method for generating a three dimensional (3D) model of a tubular organ having an occluded segment, the occluded segment adjoining a proximal segment at a proximal end thereof, and a distal segment at a distal end thereof, comprises the procedures of: injecting a first dye injection into said tubular organ, said first dye approaching a first end of said occluded segment; acquiring a plurality of first-injection two-dimensional (2D) images of said tubular organ, each acquired from a different perspective, said first-injection 2D images further acquired with a respective organ timing signal reading; injecting a second dye injection into said tubular organ, said second dye approaching a second end of the occluded segment; acquiring a plurality of second-injection 2D images of said tubular organ, each acquired from a different perspective, said second-injection 2D images further acquired with a respective organ timing signal reading; generating a plurality of superimposed 2D images, one for each of said perspectives, each of said superimposed 2D images including said proximal segment and said distal segment; determining the boundary regions of said proximal segment and said distal segment in said superimposed 2D images; determining the boundary regions of said occluded segment in said superimposed 2D images, by interpolating between said boundary regions of said proximal segment and said distal segment; generating a 3D model of said tubular organ from said superimposed 2D images; and determining a 3D center line of the tubular organ, said 3D center line passing through said proximal segment, through said occluded segment and through said distal segment. |
