MEDICAL IMAGE EVALUATION PHANTOM HAVING REMOVABLY ATTACHED LESION PORTION

To provide a phantom for medical image evaluation which can perform accurate alignment of a lesion portion in a phantom without causing deviation of the lesion portion, the lesion portion being removably attached thereto.SOLUTION: A heart phantom 2 for performing correction of a nuclear medicine image capturing device which captures a nuclear medicine image comprises: a container 6 which has an inner container 4 and an outer container 5 and is provided with an injection space which is formed between the inner container 4 and the outer container 5 and into which a liquid containing a radioactive isotope is injected; and a simulated lesion member 11 which protrudes from the inner container toward the outer container in the injection space and which is formed so as to be removably attached to the inner container. The inner container is provided with an inner container side positioning portion 21 formed therein at which the simulated lesion member is positioned. The simulated lesion member is provided with a lesion portion side attachment hole formed therein which engages the inner container side positioning portion.SELECTED DRAWING: Figure 2 【課題】病変部を着脱自在としたファントムにおいて、病変部のずれを生じさせることなく、病変部を正しく位置合わせできる医用画像評価用のファントムを提供する。【解決手段】核医学画像を撮影する核医学画像撮影機器の校正を行うための心臓ファントム２であって、内容器４及び外容器５を有し、放射性同位体を含んだ液体が注入される注入空間が内容器４と外容器５の間に形成される容器６と、注入空間において内容器から外容器に向かって突出し、内容器に着脱自在に形成された模擬病変部材１１とを備え、内容器には、模擬病変部材を位置決めする内容器側位置決め部２１が形成され、模擬病変部材には内容器側位置決め部に係合する病変部側取付穴が形成されている。【選択図】図２