Ultrasonic diagnostic device and image processing device
AssigneeCanon Medical Systems Corporation
InventorTakeshi SATO
Life of this patent
Estimating the term…
Abstract
An ultrasonic diagnostic device according to an embodiment includes a collecting unit and processing circuitry. The collecting unit performs ultrasonic scanning with respect to a subject and collects reflected-wave data. The processing circuitry performs short-time Fourier transform in the depth direction with respect to the reflected-wave data; applies a nonlinear adaptive MTI filter on a frequency-by-frequency basis with respect to the result of the short-time Fourier transform; and performs inverse short-time Fourier transform in the depth direction with respect to the output of the nonlinear adaptive MTI filter. Then, the processing circuitry estimates blood flow information from the result of the inverse short-time Fourier transform.
Claims6
An ultrasonic diagnostic device comprising:
- a collector that performs ultrasonic scanning with respect to a subject and collects reflected-wave data;
- and
- processing circuitry that
- performs short-time Fourier transform in depth direction with respect to the reflected-wave data,
- applies a nonlinear adaptive MTI filter on a frequency-by-frequency basis with respect to result of the short-time Fourier transform,
- performs inverse short-time Fourier transform in depth direction with respect to output of the nonlinear adaptive MTI filter, and
- estimates blood flow information from result of the inverse short-time Fourier transform.
An image processing device comprising:
- a memory that is used to store reflected-wave data collected as a result of performing ultrasonic scanning with respect to a subject;
- and
- processing circuitry that
- performs short-time Fourier transform in depth direction with respect to the reflected-wave data,
- applies a nonlinear adaptive MTI filter on a frequency-by-frequency basis with respect to result of the short-time Fourier transform,
- performs inverse short-time Fourier transform in depth direction with respect to output of the nonlinear adaptive MTI filter, and
- estimates blood flow information from result of the inverse short-time Fourier transform.
Dependencies are inferred from the claim text.