Medical image processing apparatus and medical image processing method

A medical image processing apparatus comprising:

• an image storage unit configured to store data of an image including an aneurysm in an object;
• a blood vessel extraction unit configured to extract a blood vessel wall region from the image;
• a calculation unit for a blood vessel diameter change rate and the like configured to calculate a blood vessel diameter change rate, a blood vessel curvature, and a blood vessel flattening ratio at each of a plurality of discrete points on the blood vessel wall region based on the extracted blood vessel wall region;
• an unrecommended point extraction unit configured to extract, from the plurality of discrete points, an unrecommended point at which at least one of the blood vessel diameter change rate, the blood vessel curvature, and the blood vessel flattening ratio exceeds a corresponding one of thresholds;
• an unrecommended range decision unit configured to decide an unrecommended range which is not recommended for indwelling of a stent graft for the aneurysm in accordance with a point string range of the extracted unrecommended points;
• and
• a display unit configured to superimpose and display the unrecommended range on the stored image.

A medical image processing method comprising:

• extracting a blood vessel wall region from an image including an aneurysm in an object;
• calculating a blood vessel diameter change rate, a blood vessel curvature, and a blood vessel flattening ratio at each of a plurality of discrete points on the blood vessel wall region based on the extracted blood vessel wall region;
• extracting, from the plurality of discrete points, an unrecommended point at which at least one of the blood vessel diameter change rate, the blood vessel curvature, and the blood vessel flattening ratio exceeds a corresponding one of thresholds;
• deciding an unrecommended range which is not recommended for indwelling of a stent graft for the aneurysm in accordance with a point string range of the extracted unrecommended points;
• and
• superimposing and displaying the unrecommended range on the stored image.