Medison Co., Ltd.

Other

Samsung Medison Co., Ltd.

Sung Jae Kwon

Yung Gil Kim

Mok Kun Jeong

Ra Young Yoon

Moo Ho Bae

Dong Kuk Shin

Min Joo Choi

Mok Keun Jeong

A method for displaying a passive cavitation image that shows characteristic information of a passive cavitation includes: receiving an ultrasound signal caused by the passive cavitation; generating a plurality of first passive cavitation images for the passive cavitation at predetermined respective time frame using the received ultrasound signal by a DAS beam forming; generating a plurality of second passive cavitation images in which a maximum magnitude signal region is displayed by selecting a main lobe region having a magnitude greater than or equal to a predetermined value in the respective first passive cavitation image; generating a main lobe passive cavitation image in which a main region is displayed in the respective time frame by superimposing the plurality of the second passive cavitation images obtained for the respective time frame; and generating a passive cavitation image by displaying the main lobe passive cavitation image on a background image.

Method and device for displaying passive cavitation image

Embodiments for forming a strain image by compensating for displacement in a later direction in an ultrasound system are disclosed. In one embodiment, an ultrasound system includes: an ultrasound data acquisition unit configured to acquire first ultrasound data where compression is not applied to a target object and second ultrasound data where compression is applied to the target object; and a processing unit configured to compensate for displacements in axial and lateral directions in the second ultrasound data based on the first ultrasound data and second ultrasound data, the processing unit being further configured to form a strain image based on the first ultrasound data and the axial and lateral displacement compensated second ultrasound data.

Ultrasound strain imaging based on lateral displacement compensation

The present invention relates to an ultrasound system and a method of forming a Doppler mode image. The ultrasound system comprises a transmission/reception unit operable to transmit/receive ultrasound signals at a pulse repetition frequency (PRF) to form an n number of Doppler signals. The ultrasound system further comprises a signal processing unit. The signal processing unit computes a first mean frequency based on an nDoppler signal and an (n&#x2212;1)Doppler signal and a second mean frequency based on an nDoppler signal and an (n&#x2212;k)Doppler signal, wherein k is a positive integer equal to or greater than 2. The signal processing unit estimates a Doppler frequency and compensate for aliasing of the Doppler signal based on the first and second mean frequencies to produce Doppler signal with the aliasing compensated. An image processing unit operable to form a Doppler mode image based on the Doppler signals produced by the signal processing unit.

Noise reduction and aliasing compensation in a doppler mode image

There is provided an ultrasound system for forming strain images by decreasing decorrelation of receive signals, which vary with time or space. More specifically, the decorrelation between the receive signals obtained without and with applying stress to a target object is reduced to decrease an error, which occurs during the calculation of a delay. Also, a center frequency, which varies with depth of a target object, is compensated to form the strain image.

Ultra sound system for forming strain images with instantaneous frequency

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.

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Seoul, South Korea

Sung Jae Kwon