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US 5,329,929 AGranted
Ultrasonic diagnostic apparatus
AssigneeKabushiki Kaisha Toshiba
InventorsTakeshi Sato, Akinami Ohhashi
Life of this patent
Estimating the term…
Abstract
An ultrasonic diagnostic apparatus comprising unit for collecting echo signals by scanning a three-dimensional area of a subject with an ultrasonic beam, unit for making a three-dimensional bloodstream information based on the echo signals, unit for producing a plurality of projection images with different projecting directions based on the three-dimensional bloodstream information, and unit for displaying the plurality of projection images in specified sequence.
Claims19
An ultrasonic diagnostic apparatus comprising:
- means for collecting echo signals by scanning a three-dimensional area of a subject with an ultrasonic beam;
- means for detecting Doppler signals of a bloodstream based on said echo signals collected by said collecting means;
- means for making a three-dimensional bloodstream distribution in said three-dimensional area based on said Doppler signals;
- means for producing a plurality of projection images with different projecting directions based on said three-dimensional bloodstream distribution;
- and
- means for displaying successively said plurality of projection images at specified intervals of time in specified sequence.
3 more elements
An ultrasonic diagnostic apparatus comprising:
- means for collecting echo signals by scanning a three-dimensional area of a subject with an ultrasonic beam;
- first means for producing a tomographic image based on said echo signals;
- means for detecting Doppler signals of a bloodstream based on said echo signals collected by said collecting means;
- means for making a three-dimensional bloodstream distribution in said three-dimensional area based on said Doppler signals;
- second means for producing a projection image with a specified projecting direction based on said three-dimensional bloodstream distribution;
- third means for producing a synthetic image from said projection image and said tomographic image;
- and
- means for displaying said synthetic image.
5 more elements
An ultrasonic diagnostic apparatus, comprising:
- means for collecting echo signals by scanning a three-dimensional area of a subject with an ultrasonic beam;
- means for producing a tomographic image based on said echo signals;
- first means for producing a plurality of projection images with different projecting directions based on said tomographic image;
- means for detecting Doppler signals of a bloodstream based on said echo signals collected by said collecting means;
- means for making a three-dimensional bloodstream distribution in said three-dimensional area based on said Doppler signals;
- second means for producing a plurality of bloodstream projection images with said different producing directions based on said three-dimensional bloodstream distribution;
- means for synthesizing said plurality of projection images and said plurality of bloodstream projection images with the same producing direction;
- and
- means for displaying successively a plurality of synthetic images at specified intervals of time in specified sequence.
6 more elements
An ultrasonic diagnostic apparatus comprising:
- means for collecting echo signals by moving a two-dimensional area scanning with an ultrasonic beam along a specified projecting direction in a three-dimensional area of a subject;
- first means for producing a plurality of tomographic images based on said echo signals from said two-dimensional area;
- means for detecting Doppler signals of bloodstream based on said echo signals collected by said collecting mans;
- means for making a three-dimensional bloodstream distribution in said three-dimensional area based on said Doppler signals;
- second means for producing a projection image with a specified projecting direction based on said three-dimensional bloodstream distribution;
- third means for producing a plurality of synthetic images by combining said projection image with said respective tomographic images;
- and
- means for displaying sequentially said respective areas.
5 more elements
An ultrasonic diagnostic apparatus comprising:
- means for scanning a plurality of consecutive two-dimensional areas in a three-dimensional area of a subject with an ultrasonic beam;
- means for detecting Doppler signals based on echo signals collected by said scanning means;
- means for making a three-dimensional bloodstream distribution of said three-dimensional area based on said Doppler signals;
- means for storing said three-dimensional bloodstream distribution;
- means for producing a plurality of projection bloodstream images with different projecting directions based on said three-dimensional bloodstream distribution;
- and
- means for displaying successively said plurality of projection bloodstream images.
4 more elements
Dependencies are inferred from the claim text.