Ultrasound diagnosis apparatus
First Claim
1. An ultrasound diagnosis apparatus having an ultrasound probe in which a plurality of transducer elements are arrayed, and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof;
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
a cross correlator for performing a pattern matching between the tomogram imaged with one frame and the tomogram imaged with another frame and operating a displacement signal, the pattern matching being performed by taking a cross correlation through application of a first displacement function for expressing a displacement such that a place becomes closer to a body surface at a shallow depth and a displacement such that a place becomes farther from the body surface at a greater depth; and
a tissue expansion detector for performing a second pattern matching between the displacement signal and a second displacement function for expressing a displacement form caused by a partial tissue expansion of the patient,wherein a tissue expansion generated at a part of the patient is extracted from the second pattern matching.
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Accused Products
Abstract
An ultrasound diagnosis apparatus includes an ultrasound probe 1, in which a plurality of transducer elements are arrayed and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof, and images a tomogram of the patient, using the reflection wave, wherein an expansion detector 22 operates a difference between a radial component of a therapeutic converging beam of a movement amount of each part, and an integral amount integrated from the radial component, and extracts a tissue expansion generated at a part of the patient from the tomogram, and wherein the movement amount is calculated by performing a pattern matching between tomograms imaged with different frames.
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Citations
12 Claims
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1. An ultrasound diagnosis apparatus having an ultrasound probe in which a plurality of transducer elements are arrayed, and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof;
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
a cross correlator for performing a pattern matching between the tomogram imaged with one frame and the tomogram imaged with another frame and operating a displacement signal, the pattern matching being performed by taking a cross correlation through application of a first displacement function for expressing a displacement such that a place becomes closer to a body surface at a shallow depth and a displacement such that a place becomes farther from the body surface at a greater depth; and a tissue expansion detector for performing a second pattern matching between the displacement signal and a second displacement function for expressing a displacement form caused by a partial tissue expansion of the patient, wherein a tissue expansion generated at a part of the patient is extracted from the second pattern matching. - View Dependent Claims (2, 3)
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
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4. An ultrasound diagnosis apparatus having an ultrasound probe in which a plurality of transducer elements are arrayed, and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof;
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
a cross correlator for performing a pattern matching between the tomogram imaged with one frame and the tomogram imaged with another frame and operating a displacement signal, the pattern matching being performed by taking a cross correlation through application of a first displacement function for expressing a displacement such that a place becomes closer to a body surface at a shallow depth and a displacement such that a place becomes farther from the body surface at a greater depth; a Fourier transform for transforming the displacement signal into a frequency domain; a multiplier for multiplying the displacement signal transformed into the frequency domain by a second displacement function for expressing a displacement form caused by a partial tissue expansion of the patient in the frequency domain; and an inverse Fourier transform for inverse transforming the signal of the frequency domain multiplied by the multiplier into a time domain, wherein the tissue expansion is extracted by using the time domain signal inverse transformed. - View Dependent Claims (5)
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
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6. An ultrasound diagnosis apparatus having an ultrasound probe in which a plurality of transducer elements are arrayed, and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof;
- and imaging a tomogram of the patient, using the reflection wave, wherein a tissue expansion is generated by converging and radiating a therapeutic converging beam, which is any one of the ultrasound, a second ultrasound, an electromagnetic wave, and a combination of these, on a part of the patient, the apparatus comprising;
a cross correlator for performing a pattern matching between the tomogram imaged with a frame and the tomogram imaged with another frame and operating a displacement signal by using a cross correlation, the pattern matching being performed by taking the cross correlation through application of a displacement function for expressing a displacement such that a place becomes closer to a body surface at a shallow depth and a displacement such that a place becomes farther from the body surface at a greater depth; a radial component calculator for calculating a radial component of the therapeutic converging beam; an integrator for integrating the radial component and calculating an integral amount thereof; and a subtracter for operating a difference between the radial component and the integral amount, wherein the tissue expansion is extracted by using the difference. - View Dependent Claims (7, 8, 9, 10, 11)
- and imaging a tomogram of the patient, using the reflection wave, wherein a tissue expansion is generated by converging and radiating a therapeutic converging beam, which is any one of the ultrasound, a second ultrasound, an electromagnetic wave, and a combination of these, on a part of the patient, the apparatus comprising;
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12. An ultrasound diagnosis apparatus having an ultrasound probe in which a plurality of transducer elements are arrayed, and which converges and radiates an ultrasound on a patient and detects a reflection wave thereof;
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
a cross correlator for performing a pattern matching between the tomogram imaged with one frame and the tomogram imaged with another frame and operating a displacement signal, the pattern matching being performed by taking a cross correlation through application of a first displacement function for expressing a displacement such that a place becomes closer to a body surface at a shallow depth and a displacement such that a place becomes farther from the body surface at a greater depth; and a tissue expansion detector for performing a second pattern matching between the displacement signal and a second displacement function for expressing a displacement form caused by a partial tissue expansion of the patient, wherein the tissue expansion detector detects a volume change generated at a part of the patient for a pause period of a radiation of the ultrasound by the ultrasound probe.
- and imaging a tomogram of the patient, using the reflection wave, the apparatus comprising;
Specification