INSTRUMENT AND METHOD FOR MEASURING LESION DIMENSION

摘要

PROBLEM TO BE SOLVED: To precisely measure the actual dimensions of a lesion projected in an image.

SOLUTION: A first processing means 23A fetches respective deviations A and A' between a one-yen coin 11 positioned at the center of the photodetective surface 12 of a detector 2 and an aneurysm M' which is the projected lesion from a first reference image and a second reference image photographed in a decided direction, and calculates a projection angle P2 by which the projected aneurysm M' coincides with the center of the photodetective surface 12. A second processing means 23A fetches the deviation A1 between the center of the photodetective surface 12 of the detector 2 and the projected aneurysm M' from a selective image photographed in an optional direction to obtain the coordinate ratio of an actual aneurysm M to the projected aneurysm M' on the photodetective surface 12 to calculate the dimension of the actual aneurysm M.

COPYRIGHT: (C)2004,JPO