摘要:
There are disclosed embodiments for forming an enhanced elastic image in an ultrasound system. An elastic image of a target object may be formed by scanning N scan lines. A control unit divides the N scan lines into M scan lines groups by using an acquisition period necessary for transmitting and receiving ultrasound signals to acquire ultrasound data. An ultrasound data acquiring unit transmits ultrasound signals to a target object and receives the ultrasound signals reflected from the target object at a predetermined transmission/reception sequence for each of the M scan line groups. This forms ultrasound data corresponding to each of the M scan line groups while a pressure is applied to the target object. An elastic image forming unit forms at least one sub elastic image corresponding to each of the M scan line groups based on the ultrasound data. The elastic forming unit sums M sub elastic images corresponding to the respective M scan line groups to thereby form an elastic image of the target object.
摘要:
An ultrasound system and method for forming ultrasound data corresponding to a receive scan line independent of a synthetic aperture. The ultrasound system includes the ultrasound data forming unit configured to: form scan line data corresponding to each of the receive scan lines by using data provided from the receive channels; form accumulated data by accumulating the scan line data corresponding to the receive scan lines of the same position; set a storing start position for storing the accumulated data based on the transmit synthesizing number; and store the accumulated data by shifting the storing start position by 1, thereby forming ultrasound data corresponding to each of the receive scan linen lines.
摘要:
There are disclosed embodiments for forming an enhanced elastic image in an ultrasound system. An elastic image of a target object may be formed by scanning N scan lines. A control unit divides the N scan lines into M scan lines groups by using an acquisition period necessary for transmitting and receiving ultrasound signals to acquire ultrasound data. An ultrasound data acquiring unit transmits ultrasound signals to a target object and receives the ultrasound signals reflected from the target object at a predetermined transmission/reception sequence for each of the M scan line groups. This forms ultrasound data corresponding to each of the M scan line groups while a pressure is applied to the target object. An elastic image forming unit forms at least one sub elastic image corresponding to each of the M scan line groups based on the ultrasound data. The elastic forming unit sums M sub elastic images corresponding to the respective M scan line groups to thereby form an elastic image of the target object.
摘要:
The present invention relates to an ultrasound diagnostic device. The ultrasound diagnostic device comprises a pair of transducers operable to transmit/receive ultrasound signals. The transducers are arranged to face each other. The transducers may be an array transducer including a plurality of elements, which are linearly arranged.
摘要:
The present invention relates to a method of acquiring an ultrasound image in an ultrasound imaging system having an array transducer, comprising: a) setting an image point at a predetermined depth on an ultrasound image acquired based on a reference speed of sound for a target object; b) setting a range of speed of sound with reference to the reference speed; c) setting a plurality of speeds of sound in a predetermined interval within the range of speed of sound; d) acquiring ultrasound images at each speed of sound; e) calculating an amplitude of an image point set at a predetermined depth of each ultrasound image; f) determining a real speed of sound in the target object based on the calculated amplitude; and g) acquiring an ultrasound image based on the determined real speed of sound in the target object.
摘要:
There is provided an ultrasound system, which includes: a probe for providing electrical analog signals in response to ultrasound signals reflected from a target object; an analog-to-digital converter for converting the electrical analog signals to digital signals; and a beam former for extracting a part of digital signals at a rate of n times of a center frequency of the electrical analog signals to form a receive beam, wherein n is a positive integer.
摘要:
A method of displaying an elastic image, comprising: a) performing transmission/reception of an ultrasound signal along a plurality of scan lines set on a target object to obtain first ultrasound data, the target object including a plurality of tissues; b) performing transmission/reception of an ultrasound signal along a plurality of scan lines set on the target object by applying a stress to the target object to obtain second ultrasound data; c) calculating displacements of the tissues based on the first and second ultrasound data; d) calculating strains in the tissues based on the calculated displacements; e) forming an elastic image based on the calculated strains and a graph indicating changes of the tissues for the respective scan lines; and f) displaying the elastic image together with the graph.
摘要:
Embodiments of the present invention may provide an ultrasound imaging system and method for forming multiple receiving scan lines from one original receiving scan line. Ultrasound signals reflected from one original receiving scan line are converted into analog signals having a center frequency. The analog signals are converted into digital data. The digital data are coarsely delayed, wherein the coarsely delayed data are extracted at a rate of n-times of the center frequency. Data of the multiple receiving scan lines are formed by performing fine delay and interpolation. For the interpolation, parts of the extracted data are selected at a rate of n-times of the center frequency and the multiple receiving scan lines.
摘要:
An ultrasound diagnostic system and a method for forming IQ data without a quadrature demodulator are disclosed. Ultrasound echoes from a target object are converted into analog signals, which have a center frequency. The analog signals are converted into digital signals and parts of the digital signals are extracted at a rate of n-times of the center frequency, wherein “n” is a positive integer. Focused-receiving signals are formed with the extracted digital signals and IQ data are obtained by selecting at least one pair of the focused-receiving signals. The focused-receiving signals in each pair have a phase difference of λ/4 with respect to each other, where “λ” is a wavelength determined with the center frequency.
摘要:
Embodiments of the present invention may provide an ultrasound imaging system and method for forming multiple receiving scan lines from one original receiving scan line. Ultrasound signals reflected from one original receiving scan line are converted into analog signals having a center frequency. The analog signals are converted into digital data. The digital data are coarsely delayed, wherein the coarsely delayed data are extracted at a rate of n-times of the center frequency. Data of the multiple receiving scan lines are formed by performing fine delay and interpolation. For the interpolation, parts of the extracted data are selected at a rate of n-times of the center frequency and the multiple receiving scan lines.