Ultrasonic diagnosis apparatus, automatic support apparatus, and automatic support method
First Claim
1. An ultrasonic diagnosis apparatus, comprising:
- a storage unit configured to store data of a state space based on a first measured value of a measurement item associated with an able-bodied person;
an ultrasonic probe;
a transmission/reception unit configured to transmit an ultrasonic wave to a subject via the ultrasonic probe, receive an ultrasonic wave reflected by the subject, and generate a reception signal corresponding to the received ultrasonic wave;
a measured value calculation unit configured to calculate a second measured value of the measurement item associated with the subject based on the reception signal;
a distance calculation unit configured to calculate a Mahalanobis distance of the subject based on the state space and the second measured value;
a determination unit configured to compare the Mahalanobis distance with a threshold to determine whether the subject has a disease evaluated by the measurement item; and
a disease type discrimination unit configured to discriminate a type of the disease by calculating a similarity between a distribution of second measured values of the subject measured by the measured value calculation unit and a measured value distribution model for each of a plurality of types of diseases.
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Accused Products
Abstract
According to one embodiment, an ultrasonic diagnosis apparatus includes a storage unit, a ultrasonic probe, a transmission/reception unit, a measured value calculation unit, a distance calculation unit, and a determination unit. The storage unit stores data of a state space based on a first measured values of a measurement item associated with an able-bodied person. The transmission/reception unit transmits ultrasonic waves to a subject via an ultrasonic probe, and generates reception signals corresponding to an ultrasonic waves reflected by the subject. The measured value calculation unit calculates a second measured value of the measurement item associated with the subject based on the reception signals. The distance calculation unit calculates a Mahalanobis distance of the subject based on the state space and the second measured value. The determination unit compares the Mahalanobis distance with a threshold to determine whether the subject has the disease evaluated by the measurement item.
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Citations
15 Claims
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1. An ultrasonic diagnosis apparatus, comprising:
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a storage unit configured to store data of a state space based on a first measured value of a measurement item associated with an able-bodied person; an ultrasonic probe; a transmission/reception unit configured to transmit an ultrasonic wave to a subject via the ultrasonic probe, receive an ultrasonic wave reflected by the subject, and generate a reception signal corresponding to the received ultrasonic wave; a measured value calculation unit configured to calculate a second measured value of the measurement item associated with the subject based on the reception signal; a distance calculation unit configured to calculate a Mahalanobis distance of the subject based on the state space and the second measured value; a determination unit configured to compare the Mahalanobis distance with a threshold to determine whether the subject has a disease evaluated by the measurement item; and a disease type discrimination unit configured to discriminate a type of the disease by calculating a similarity between a distribution of second measured values of the subject measured by the measured value calculation unit and a measured value distribution model for each of a plurality of types of diseases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An automatic support apparatus, comprising:
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a first storage unit configured to store data of a state space based on a first measured value of a measurement item associated with an able-bodied person; a second storage unit configured to store data of a second measured value of the measurement item associated with a subject; a distance calculation unit configured to calculate a Mahalanobis distance of the subject based on the state space and the second measured value; a determination unit configured to compare the Mahalanobis distance with a threshold to determine whether the subject has a disease evaluated by the measurement item; and a disease type discrimination unit configured to discriminate a type of the disease by calculating a similarity between a distribution of second measured values of the subject and a measured value distribution model for each of a plurality of types of diseases.
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15. An automatic support method, comprising:
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scanning a subject with an ultrasonic wave via an ultrasonic probe; calculating a measured value of an ultrasonic measurement item associated with the subject based on a reception signal from the ultrasonic probe; calculating a Mahalanobis distance of the subject based on the calculated measured value and a state space based on the measured value of the measurement item associated with an able-bodied person; comparing the calculated Mahalanobis distance with a threshold to determine whether the subject has a disease evaluated by the measurement item; and discriminating a type of the disease by calculating a similarity between a distribution of measured values of the subject and a measured value distribution model for each of a plurality of types of diseases.
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Specification