The object of the present invention is to provide a data processing device for medical treatment that can generate a MIP image which is suitable for diagnosis. As per the data processing device for medical treatment, an adjustment to a brightness of an area of a body surface is made in three-dimensional spacial data that is equivalent to part of body surface of a stereobody to be examined. The largest brightness is selected from a portion except the area of the object surface and generates an image on generating the MIP image P1 since the brightness of the object surface area is lowed by the adjustment. By this way, the object surface to be examined is not photographed in the MIP image during generating the MIP image P1. Therefore, the MIP image P1 with a good visual recognition that showing the inner condition of the object to be examined is obtained.本發明之目的在於提供一種可產生適合診斷之MIP影像的醫療用資料處理裝置。若依據本發明的醫療用資料處理裝置,調整是在三維空間資料中相當於被檢體立體像之體表面的部分之體表面區域的亮度。因為藉調整使體表面區域的亮度降低,所以在產生MIP影像P1時,從除體表面區域外的部分選擇最大亮度並產生影像。藉由依此方式作成,在產生MIP影像P1時,不會照到被檢體的體表面。因此,可取得顯示被檢體內部狀況之視認性優異的MIP影像P1。1‧‧‧體表面特定部2‧‧‧體表面亮度調整部3‧‧‧MIP影像產生部8‧‧‧資料處理裝置25‧‧‧顯示部26‧‧‧操作桌27‧‧‧主控制部28‧‧‧記憶部P1‧‧‧MIP影像D1‧‧‧空間資料p‧‧‧臨限值
