Ultrasound diagnostic apparatus and attenuation map generation method
AssigneeFUJIFILM Corporation
InventorsMika NAGAI, Teruyuki SONOYAMA
Life of this patent
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Abstract
A brightness average map and a brightness SD map are generated based on a first data group in a first region of interest. A first extraction process using a first threshold value and a second threshold value is applied to the brightness average map, and thus a first mask is generated. A second extraction process is applied to the brightness SD map, and thus a second mask is generated. An attenuation map is generated according to a composite mask based on the first mask and the second mask.
Claims13
An ultrasound diagnostic apparatus comprising:
- a processor,
- wherein the processor is configured to
- generate an ultrasound image based on a first data set acquired by transmission and reception of first ultrasound,
- generate a plurality of types of masks for excluding a plurality of types of regions of non-interest from a first region of interest set in a beam scanning plane, based on the first data set,
- generate a composite mask by combining the plurality of types of masks,
- specify an attenuation display region within the first region of interest based on the composite mask, and
- generate an attenuation map representing an attenuation distribution in the attenuation display region based on a second data set acquired by transmission and reception of second ultrasound different from the first ultrasound.
An attenuation map generation method executed in an ultrasound diagnostic apparatus, the attenuation map generation method comprising:
- a step of generating an ultrasound image based on a first data set acquired by transmission and reception of first ultrasound;
- a step of generating a plurality of types of masks for excluding a plurality of types of regions of non-interest from a first region of interest set in a beam scanning plane, based on the first data set;
- a step of generating a composite mask by combining the plurality of types of masks;
- a step of specifying an attenuation display region within the first region of interest based on the composite mask;
- and
- a step of generating an attenuation map representing an attenuation distribution in the attenuation display region based on a second data set acquired by transmission and reception of second ultrasound different from the first ultrasound.
A non-transitory storage medium storing a program for executing an attenuation map generation method in an information processing apparatus, the program causing the information processing apparatus to implement:
- a function of generating an ultrasound image based on a first data set acquired by transmission and reception of first ultrasound;
- a function of generating a plurality of types of masks for excluding a plurality of types of regions of non-interest from a first region of interest set in a beam scanning plane, based on the first data set;
- a function of generating a composite mask by combining the plurality of types of masks;
- a function of specifying an attenuation display region within the first region of interest based on the composite mask;
- and
- a function of generating an attenuation map representing an attenuation distribution in the attenuation display region based on a second data set acquired by transmission and reception of second ultrasound different from the first ultrasound.
Dependencies are inferred from the claim text.