Blood flow analysis device, method, and program
AssigneeFUJIFILM Corporation
InventorsSho Onozawa, Takeshi Unemura, Hirotaka Ito
Life of this patent
Estimating the term…
Abstract
A blood flow analysis device includes a blood vessel region extraction unit that extracts a blood vessel region from a three-dimensional medical image of a subject including a blood vessel, and a blood flow simulation unit that obtains a line resistance by multiplying a resistance value corresponding to a branch blood vessel branching out of the blood vessel region by a surface area of each of preset sections into which the blood vessel region is divided in an extension direction, generates a vascular network model by applying the line resistance to each node of a surface of the blood vessel region, and performs simulation of a blood flow by using the vascular network model.
Claims11
A blood flow analysis device comprising:
- a memory configured to store instructions;
- and
- a processor configured to execute the stored instructions, which comprise:
- extracting a blood vessel region from a three-dimensional medical image of a subject including a blood vessel;
- generating a vascular network model by setting nodes on a surface of the extracted blood vessel region and applying a line resistance corresponding to a diameter of the extracted blood vessel region at each position of the nodes to each of the nodes;
- and
- performing simulation of a blood flow by using the vascular network model,
- wherein the line resistance corresponding to the diameter is obtained by using a function obtained based on anatomical data in advance, the line resistance being a value obtained by multiplying a resistance value corresponding to a branch blood vessel assumed to branch out of a section of the blood vessel region having the diameter by a surface area which the section is assumed to have.
A blood flow analysis method comprising:
- extracting a blood vessel region from a three-dimensional medical image of a subject including a blood vessel;
- generating a vascular network model by setting nodes on a surface of the extracted blood vessel region and applying a line resistance corresponding to a diameter of the extracted blood vessel region at each position of the nodes to each of the nodes and
- performing simulation of a blood flow by using the vascular network model,
- wherein the line resistance corresponding to the diameter is obtained by using a function obtained based on anatomical data in advance, the line resistance being a value obtained by multiplying a resistance value corresponding to a branch blood vessel assumed to branch out of a section of the blood vessel region having the diameter by a surface area which the section is assumed to have.
A non-transitory computer-readable storage medium storing therein a blood flow analysis program causing a computer to:
- extract a blood vessel region from a three-dimensional medical image of a subject including a blood vessel;
- generate a vascular network model by setting nodes on a surface of the extracted blood vessel region and applying a line resistance corresponding to a diameter of the extracted blood vessel region at each position of the nodes to each of the nodes and
- perform simulation of a blood flow by using the vascular network model,
- wherein the line resistance corresponding to the diameter is obtained by using a function obtained based on anatomical data in advance, the line resistance being a value obtained by multiplying a resistance value corresponding to a branch blood vessel assumed to branch out of a section of the blood vessel region having the diameter by a surface area which the section is assumed to have.
Dependencies are inferred from the claim text.