Ultrasonic imaging apparatus
First Claim
1. An ultrasonic imaging apparatus having an ultrasonic probe for transmitting ultrasonic beams to a subject along a plurality of ultrasonic scanning lines, for receiving ultrasonic beams reflected from the subject along the plurality of ultrasonic scanning lines, the reflected ultrasonic beams including reflected pulses, and for obtaining ultrasonic information about the subject based on ultrasonic reflection data items contained in the reflected ultrasonic beams, the ultrasonic imaging apparatus comprising:
- designation means for designating a time interval including one of the reflected pulses;
phase information calculation means for calculating phase information based on ultrasonic reflection data items corresponding to at least two of the ultrasonic scanning lines, which are near to each other, based on a phase shift in the time interval between the at least two ultrasonic scanning lines; and
boundary position information generation means for generating boundary position information about a specified part of the subject for each of the plurality of ultrasonic scanning lines, based on the phase information calculated by the phase information calculation means and on boundary position information of a predetermined reference scanning line.
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Accused Products
Abstract
A phased-array ultrasonic probe transmits/receives ultrasonic beams to/from a subject to electronically scan a predetermined part of the subject. A calculation unit calculates cross-correlation function data between adjacent scanning lines obtained by the electronic scan. The cross-correlation function data is supplied to a DSC through a memory. The DSC superimposes organ outline data obtained based on the cross-correlation function data, upon a tomographic image, and an image obtained by the superimposition is displayed on a monitor.
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Citations
19 Claims
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1. An ultrasonic imaging apparatus having an ultrasonic probe for transmitting ultrasonic beams to a subject along a plurality of ultrasonic scanning lines, for receiving ultrasonic beams reflected from the subject along the plurality of ultrasonic scanning lines, the reflected ultrasonic beams including reflected pulses, and for obtaining ultrasonic information about the subject based on ultrasonic reflection data items contained in the reflected ultrasonic beams, the ultrasonic imaging apparatus comprising:
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designation means for designating a time interval including one of the reflected pulses; phase information calculation means for calculating phase information based on ultrasonic reflection data items corresponding to at least two of the ultrasonic scanning lines, which are near to each other, based on a phase shift in the time interval between the at least two ultrasonic scanning lines; and boundary position information generation means for generating boundary position information about a specified part of the subject for each of the plurality of ultrasonic scanning lines, based on the phase information calculated by the phase information calculation means and on boundary position information of a predetermined reference scanning line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification