| 摘要 |
<p>Based on a three-dimensional medical image representing a subject's internal structure having a branch structure and a surrounding structure, enabling functional and/or morphological characteristics of an area of the surrounding structure functionally associated with an attention portion of the branch structure to be observed or evaluated more easily. From the three-dimensional medical image, pulmonary blood vessel extraction unit (32) extracts a branch structure and lung field area extraction unit (31) extracts a surrounding structure area which includes the surrounding structure. Attention blood vessel setting unit (33) sets an attention branch structure in the branch structure and attention lung parechymal area estimation unit (34) estimates an attention surrounding structure area functionally associated with the attention branch structure from the surrounding structure area based on the branch structure. Evaluation value calculation unit (35) obtains an evaluation value in the estimated attention surrounding structure area and mapped image generation unit (36) generates a mapped image which is an image generated by mapping the evaluation value in the attention surrounding structure area to a morphological image representing morphology of at least one of the attention branch structure and the attention surrounding structure area.
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