Apparatus and method for generating elasticity image

PURPOSE: A method for producing an elasticity image and a device therefor are provided to generate an elasticity image having a wide observing area, thereby accurately perceiving the positional relation of inside human body biological tissue. CONSTITUTION: A device for producing an elasticity image is inputted with the data of elasticity images which present the elasticity of the observing areas inside an object (21). Partial areas, which are corresponded from each of the observing areas of first and second elasticity images among elasticity images, are detected (22). Partial areas, which are corresponded to the first and second elasticity images, are used (23), such that the data of third elasticity image is produced by composing the first and second elasticity images (24). [Reference numerals] (21) Image processor; (22) Partial area detection unit; (23) Correction unit; (24) Composing unit; (25) Storage unit; (AA) Elastic image date; (BB) Elastic image