Patent ID: 7787586

Claim:
A display method for an X-ray CT image of a maxillofacial area of an object to be examined which is obtained from an X-ray computer tomography, for use in an X-ray CT apparatus or an X-ray CT image display apparatus, said method comprising the steps of: designating an interested area with respect to said maxillofacial area of an optional position on a dental arch of said object, upon receiving designating operation, producing by means of an image processing means a standard observational X-ray CT image of said designated interested area and other X-ray CT image normal to said standard observational X-ray CT image from the image data of said maxillofacial area of said object, based on a dental arch reference information prepared in advance for specifying a direction substantially normal to a curve of a dental arch of said object from its cheek side to its tongue side, said standard observational X-ray CT image being an X-ray CT image of said object seen in a direction substantially normal to a curve of the dental arch from its cheek side to its tongue side; and displaying on a display means in array said standard observational X-ray CT image and said other X-ray CT image normal to said standard observational X-ray CT image.