Endoscope device

Abstract

In an endoscope device 1 in accordance with the present invention, a navigation screen 51 is displayed. The navigation screen 51 includes: an endoscopic live image display area 52 in which a live image produced by a bronchoscope 2 is displayed; a VBS image display area 53 in which a VBS image is displayed; and a thumbnail VBS image area 54 in which images constructed by reducing VBS images that represent all branch points on a route are displayed as thumbnail VBS images representing branch points. Consequently, an endoscope can be reliably navigated to reach a target region using guide images that represent actual branch positions.

1 . An endoscopic image display method, comprising: 
 an endoscopic image data reception step of receiving image data that represents a lumen of a subject and that is picked up by an endoscope;    a first subject image data construction step of constructing first subject image data, which represents a lumen, on the basis of three-dimensional data acquired from the subject;    a second subject image data construction step of constructing second subject image data, which represents a lumen, on the basis of the three-dimensional data representing the interior of the subject;    an endoscopic image display step of displaying the endoscopic image on the basis of the endoscopic image data;    a first subject image display step of displaying the first subject image on the basis of the first subject image data; and    a second subject image display step of displaying the second subject image on the basis of the second subject image data.    
     
     
         2 . The endoscopic image display method according to  claim 1 , wherein the three-dimensional data acquired from the subject is data representing bronchi.  
     
     
         3 . The endoscopic image display method according to  claim 2 , wherein an image representing a branch point of the bronchi is constructed at the first subject image data construction step.  
     
     
         4 . The endoscopic image display method according to  claim 2 , wherein: images representing a plurality of different branch points of the bronchi are constructed at the second subject image data construction step; and the images representing the plurality of different branch points of the bronchi are displayed at the second subject image display step.  
     
     
         5 . The endoscopic image display method according to  claim 4 , wherein at least part of the images representing the branch points of the bronchi displayed at the second subject image display step are displayed in the order of their being juxtaposed along the course of the endoscope to be steered in order to insert the endoscope.  
     
     
         6 . An endoscopic image display program comprising: 
 an endoscopic image data reception step of receiving image data that represents a lumen of a subject and that is picked up by an endoscope;    a first subject image data construction step of constructing first subject image data, which represents a lumen, on the basis of three-dimensional data acquired from the subject;    a second subject image data construction step of constructing second subject image data, which represents a lumen, on the basis of three-dimensional data representing the interior of the subject;    an endoscopic image display step of displaying an endoscopic image on the basis of the endoscopic image data;    a first subject image display step of displaying the first subject image on the basis of the first subject image data; and    a second subject image display step of displaying a second subject image on the basis of the second subject image data.    
     
     
         7 . The endoscopic image display program according to  claim 6 , wherein the three-dimensional data acquired from the subject is data representing bronchi.  
     
     
         8 . The endoscopic image display program according to  claim 7 , wherein an image representing a branch point of the bronchi is constructed at the first subject image data construction step.  
     
     
         9 . The endoscopic image display program according to  claim 7 , wherein: images representing a plurality of different branch points of the bronchi are constructed at the second subject image data construction step; and the images representing the plurality of different branch points of the bronchi are displayed at the second subject image display step.  
     
     
         10 . The endoscopic image display program according to  claim 9 , wherein at least part of the images representing the branch points of the bronchi displayed at the second subject image display step are displayed in the order of their being juxtaposed along the course of the endoscope to be steered in order to insert the endoscope.  
     
     
         11 . An endoscopic image display method comprising: 
 an endoscopic image data reception step of receiving image data that represents a lumen of a subject and that is picked up by an endoscope;    a first subject image data construction step of constructing first subject image data, which represents a lumen, on the basis of three-dimensional data acquired from the subject;    a second subject image data construction step of constructing second subject image data, which represents a lumen, on the basis of the three-dimensional data representing the interior of the subject; and    a display step of displaying an endoscopic image that is based on the endoscopic image data received at the endoscopic image data reception step, a first subject image that is constructed at the first subject image data construction step, and a second subject image that is constructed at the second subject image data construction step.