Ultrasound diagnosis apparatus to correct a saturation region in an ultrasound image
AssigneeCanon Medical Systems Corporation
InventorsRyosuke Iwasaki, Hiroki Takahashi, Tomohisa Imamura
Life of this patent
Estimating the term…
Abstract
An ultrasound diagnosis apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to detect a saturation region of a signal based on an ultrasound wave received by an ultrasound probe; and to correct a first signal including an odd-numbered order harmonic component of the saturation region, on a basis of a second signal including an even-numbered order harmonic component of the saturation region.
Claims9
An ultrasound diagnosis apparatus, comprising:
- an ultrasound probe configured to transmit, to a subject, an ultrasound wave, and receive reflected-wave signals that are based on waves reflected from the subject;
- protecting circuitry configured to limit the reflected-wave signals exceeding a predetermined range of amplitudes to within the predetermined range of amplitudes;
- and
- processing circuitry configured to:
- correct a saturated region represented by a signal limited to within the predetermined range of amplitudes in an odd-numbered order harmonic image obtained from odd-order harmonic components of the reflected wave signal that has passed through the protecting circuitry, by using an even-numbered order harmonic image obtained from even- order harmonic components of the reflected wave signal that has passed through the protecting circuitry, the even-numbered order harmonic image corresponding to the saturated region represented by the odd-numbered order harmonic image, and
- output the corrected odd-numbered order harmonic image.
An image processing apparatus, comprising:
- processing circuitry configured to:
- correct a saturated region represented by a signal limited to within a predetermined range of amplitudes in an odd-numbered order harmonic image obtained from odd-order harmonic components of a reflected wave signal received by an ultrasound probe and has passed through protecting circuitry, by using an even-numbered order harmonic image obtained from even-order harmonic components of the reflected wave signal that has passed through the protecting circuitry, the even-numbered order harmonic image corresponding to the saturated region represented by the odd-numbered order harmonic image;
- and
- output the corrected odd-numbered order harmonic image.
A computer program product having a non-transitory computer-readable storage medium including programmed instructions, wherein the instructions, when executed by a computer included in an ultrasonic diagnosis apparatus, cause the computer to perform:
- correcting a saturated region represented by a signal limited to within a predetermined range of amplitudes in an odd-numbered order harmonic image obtained from odd-order harmonic components of a reflected wave signal that has passed through protecting circuitry, by using an even-numbered order harmonic image obtained from even-order harmonic components of the reflected wave signal that has passed through the protecting circuitry, the even-numbered order harmonic image corresponding to the saturated region represented by the odd-numbered order harmonic image;
- and
- outputting the corrected odd-numbered order harmonic image.
Dependencies are inferred from the claim text.