Blood vessel analysis apparatus, medical image diagnosis apparatus, and blood vessel analysis method
First Claim
Patent Images
1. A blood vessel analysis apparatus comprising:
- a storage configured to store data of a time-series medical image of a blood vessel of a subject; and
processing circuitry configured totemporarily structure a dynamical model of analysis processing based on the time-series medical image,identify a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance,analyze the dynamical model to which the identified latent variable is allocated, andtemporarily structure a dynamical model of analysis processing of an analysis target region, based on a time-series morphology index, a time-series shape deformation index, and the time-series medical image.
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Abstract
According to one embodiment, a structuring circuitry temporarily structures a dynamical model of analysis processing based on the time-series medical image. The identification circuitry identifies a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance. The analysis circuitry analyzes the dynamical model to which the identified latent variable is allocated.
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Citations
17 Claims
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1. A blood vessel analysis apparatus comprising:
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a storage configured to store data of a time-series medical image of a blood vessel of a subject; and processing circuitry configured to temporarily structure a dynamical model of analysis processing based on the time-series medical image, identify a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance, analyze the dynamical model to which the identified latent variable is allocated, and temporarily structure a dynamical model of analysis processing of an analysis target region, based on a time-series morphology index, a time-series shape deformation index, and the time-series medical image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A medical image diagnosis apparatus comprising:
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an imaging mechanism configured to generate data of a time-series medical image of a blood vessel of a subject; and processing circuitry configured to temporarily structure a dynamical model of analysis processing based on the time-series medical image, identify a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance, analyze the dynamical model to which the identified latent variable is allocated, and temporarily structure a dynamical model of analysis processing of an analysis target region, based on a time-series morphology index, a time-series shape deformation index, and the time-series medical image.
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15. A blood vessel analysis method comprising:
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temporarily structuring a dynamical model of analysis processing based on a time-series medical image of a blood vessel of a subject; identifying a latent variable of the dynamical model so that at least one of a prediction value of a blood vessel morphology and a prediction value of a bloodstream based on the temporarily structured dynamical model is in conformity with at least one of an observation value of the blood vessel morphology and an observation value of the bloodstream measured in advance; and analysing the dynamical model to which the identified latent variable is allocated, wherein the medical image is a CT image generated by an X-ray computed tomography apparatus, and the X-ray computed tomography apparatus executes CT scan so that a temporal resolution of a designation section in the time-series CT image is higher than a temporal resolution of another section.
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16. A blood vessel analysis apparatus comprising:
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a storage configured to store data of a time-series medical image of a blood vessel of a subject captured with a CT scan; processing circuitry configured to calculate a dynamical index of the blood vessel in a center line direction of the blood vessel based on the time-series medical image, and determine whether collateral exists or not, based on a change mode of a dynamical index in the center line direction, the change mode being a mode in which the dynamical index decreases at first position and turns to increase at second position which is located in distal side of the first position in the center line direction; and the display displays a determination result given by the processing circuitry. - View Dependent Claims (17)
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Specification