Programs, information processing devices, methods, and systems

Abstract

This method estimates the time-dependent response in therapies that expand the inner diameter of biological tubules, such as PCI. [Solution] A program for operating a computer 20 comprising a processor 29 and memories 25 and 26, wherein memories 25 and 26 store at least a two-dimensional shape model that mimics the shape of a pipe and physical properties of the pipe. The program causes the processor 29 to perform a first step of estimating whether or not there is a time-dependent response to the expansion of the inner diameter based on the shape model and physical properties stored in the memory, and a second step of outputting the determination result of the first step in a form that can be perceived by a human.

Claims

1. A computer comprising a processor and memory, and a program for operating the computer to support a treatment that expands the inner diameter of a hollow tube in a living organism, The memory stores at least a two-dimensional shape model that mimics the shape of the tube, and the physical properties of the tube. The program is provided to the processor: A first step of estimating whether or not there is a time-dependent response to the expansion of the inner diameter based on the shape model and physical properties stored in the memory, The second step involves outputting the estimation result from the first step in a way that is perceptible to humans. A program that executes something.

2. The aforementioned tubular body is the coronary artery of the heart, The treatment to expand the inner diameter is a treatment that expands the inner diameter of the coronary artery by inflating the balloon of a balloon catheter. The program according to claim 1.

3. The aforementioned shape model has multiple regions, The physical property values ​​stored in the memory are stored as different values ​​for each region. The program according to claim 1.

4. Multiple selected values ​​for the physical properties are stored in the memory. The program further provides the processor with: A third step that accepts input of any of the aforementioned selected values. Make it run, In the first step, based on the shape model stored in the memory and the selected value that has been accepted as input, it is determined whether or not there is a time-dependent response to the expansion of the inner diameter. The program according to claim 1.

5. The program according to claim 1, wherein the physical property values ​​stored in the memory are measured values ​​for the pipe.

6. The aforementioned physical properties include at least Young's modulus, Poisson's ratio, and viscosity coefficient. In the first step, the expansion state of the inner diameter is estimated by assuming that the tube deforms according to a Voigt-type linear viscoelastic model. The program according to claim 1.

7. The aforementioned shape model is obtained by dividing the tubular body into a mesh. In the first step, the finite element method is applied to the meshed shape model and the material properties to determine whether or not there is a time-dependent response to the expansion of the inner diameter. The program according to claim 1.

8. An information processing device comprising a processor and memory, which supports a treatment to expand the inner diameter of a hollow tube in a living organism, The memory stores at least a two-dimensional shape model that mimics the shape of the tube, and the physical properties of the tube. The aforementioned processor, A first step of estimating whether or not there is a time-dependent response to the expansion of the inner diameter based on the shape model and physical properties stored in the memory, The second step involves outputting the estimation result from the first step in a way that is perceptible to humans. An information processing device that performs this task.

9. A computer comprising a processor and memory, wherein a method is performed by the computer to assist in a treatment for expanding the inner diameter of a hollow tube in a living organism, The memory stores at least a two-dimensional shape model that mimics the shape of the tube, and the physical properties of the tube. The aforementioned processor, A first step of estimating whether or not there is a time-dependent response to the expansion of the inner diameter based on the shape model and physical properties stored in the memory, The second step involves outputting the estimation result from the first step in a way that is perceptible to humans. How to do it.

10. A system that supports treatment to expand the inner diameter of hollow tubes in the body, A memory storing at least a two-dimensional shape model that mimics the shape of the tube, and the physical properties of the tube, A means for estimating whether or not there is a time-dependent response to the expansion of the inner diameter based on the shape model and physical properties stored in the memory, Means for outputting the determination result of the estimation means in a state that can be perceived by humans. A system that has

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