Mapping image display control device, method, and program

A mapping image display control method comprising:

• extracting a lung region included in a three-dimensional image;
• extracting a bronchial region included in the lung region;
• acquiring information on a branch position of the bronchial region;
• estimating arrival position information at which an extension line of a specific peripheral branch included in the bronchial region as a target branch arrives at a surface of the lung region on a basis of the information on the branch position;
• setting a condition of an erroneous insertion of a catheter inserting into a bronchus erroneously;
• estimating, on the basis of the condition of the erroneous insertion, assumed mapping information at which an extension line of another peripheral branch that is erroneously inserted with the catheter arrives at the surface of the lung region, the another peripheral branch being different from the specific peripheral branch and the arrival position information and the assumed mapping information representing a point or a range at which a dye arrives when the dye is sprayed from within the bronchial region toward the specific peripheral branch;
• and
• generating a mapping image obtained by mapping the arrival position information of the specific peripheral branch and the assumed mapping information to the surface of the lung region and displaying the mapping image on a display.

A mapping image display control device, comprising:

• a processor configured to:
• extract a lung region included in a three-dimensional image;
• extract a bronchial region included in the lung region;
• acquire information on a branch position of the bronchial region;
• estimate arrival position information at which an extension line of a specific peripheral branch included in the bronchial region as a target branch arrives at a surface of the lung region on a basis of the information on the branch position;
• set a condition of a bronchus deformation of the bronchus in a case where a bronchoscope is inserted into the bronchus;
• estimate assumed mapping information at which an extension line of a deformed peripheral branch in which the specific peripheral branch is deformed according to the condition of the bronchus deformation arrives at the surface of the lung region, the arrival position information and the assumed mapping information representing a point or a range at which a dye arrives when the dye is sprayed from within the bronchial region toward the specific peripheral branch;
• and
• generate a mapping image obtained by mapping the arrival position information of the specific peripheral branch and the assumed mapping information to the surface of the lung region and display the mapping image on a display,
• wherein the bronchus deformation is determined based on deformation conditions of branch positions between a terminal of the specific peripheral branch and the proximal end portion of the bronchus, the deformation conditions being set for the respective branch position of the bronchial region in advance of the bronchoscope being inserted into a patient.

A mapping image display control method comprising:

• extracting a lung region included in a three-dimensional image;
• extracting a bronchial region included in the lung region;
• acquiring information on a branch position of the bronchial region;
• estimating arrival position information at which an extension line of a specific peripheral branch included in the bronchial region as a target branch arrives at a surface of the lung region on a basis of the information on the branch position;
• setting a condition of a bronchus deformation of the bronchus in a case where a bronchoscope is inserted into the bronchus;
• estimating assumed mapping information at which an extension line of a deformed peripheral branch in which the specific peripheral branch is deformed according to the condition of the bronchus deformation arrives at the surface of the lung region, the arrival position information and the assumed mapping information representing a point or a range at which a dye arrives when the dye is sprayed from within the bronchial region toward the specific peripheral branch;
• and
• generating a mapping image obtained by mapping the arrival position information of the specific peripheral branch and the assumed mapping information to the surface of the lung region and display the mapping image on a display,
• wherein the bronchus deformation is determined based on deformation conditions of branch positions between a terminal of the specific peripheral branch and the proximal end portion of the bronchus, the deformation conditions being set for the respective branch position of the bronchial region in advance of the bronchoscope being inserted into a patient.