Abstract: Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided.

Abstract: Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided.

Abstract: A method for real-time computation of point-by-point apodization coefficients used for beam-forming includes storing apodization coefficients of receiving focus points in memory, and computing at least one of an included angle between a vector from a transducer element to a receiving point and a normal vector of the transducer element, and a trigonometric function value of the included angle. The method also includes addressing the memory storing the apodization coefficients according to the quantized included angle or trigonometric function value, and reading the apodization coefficients. In one embodiment, the method may include computing in advance apodization coefficients of a receiving focus point as the starting point for the subsequent interpolation operation and another receiving focus point as the ending point, and deriving, for each receiving channel, apodization coefficients of the points situated between these two receiving focus points through an interpolation operation.

Abstract: Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided.

Abstract: Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided.

Abstract: An ultrasound imaging system and method provides for extended imaging.

Abstract: A digital reordering unit, an ultrasonic front-end device and operating method thereof are provided. The ultrasonic front-end device may be connected between a probe and a detector of the ultrasonic system and controlled by a primary controller of the ultrasonic system, the ultrasonic front-end device having an ultrasonic transmission part and an ultrasonic reception part, wherein the ultrasonic transmission part includes a transmission beamformer and M transmission driving units, and has M transmission channels; the ultrasonic reception part includes M high-voltage isolation circuits, RC amplifiers, RC ADCs and a beamformer electrically serially connected and has RC reception channels, where RC=[N, 2N, 3N . . . p*N], N being an integer larger than or equal to 1, being characterized in that, M low-voltage analog switches and a network of resistors are serially connected between the M high-voltage isolation circuits and the RC amplifiers.

Abstract: A method and apparatus for scan conversion and interpolation of linear array steering imaging in an ultrasonic system are disclosed. The method computes the points that are most related to the point to be interpolated in the principal direction of the point spread function and performs interpolation in the principal direction of the point spread function according to the steering angle of the scan lines so as to obtain a more accurate interpolation result.

Abstract: A real-time digital quadrature demodulation method and device for the ultrasonic imaging system are disclosed in this invention. In addition to a multiplying step and a filtering step, the method further comprises a sine and cosine table generating step for generating the sine and cosine table in real time, and a filter parameter generating step for generating corresponding filter parameters in real time to filter signals from the multipliers. The device comprises two multipliers, two filters, a sine and cosine table generating module, a filter parameter generating module, and two parameter memories. The real-time digital quadrature demodulation method and device for the ultrasonic imaging system according to the invention are capable of effectively saving the storage resource, and are easily controllable.

Abstract: A method and apparatus for quickly determining an imaging region associated with the current transmission in an ultrasonic imaging system includes determining a profile of the imaging region to be processed and, in turn, boundaries of that imaging region according to characteristics of the current transmitted sound field and the demand of the imaging mode. The method also includes computing a set of rectangular coordinates of points on the imaging region to be processed according to the determined boundaries.

Abstract: This present application describes a multiple ultrasound beams transmitting and receiving method, comprising: transmitting a first fat beam along a first transmit line with a first transmit aperture; receiving echo of the first fat beam with a first receive aperture and forming data of a first group of receive lines; transmitting a second fat beam along a second transmit line with a second transmit aperture; receiving echo of the second fat beam with a second receive aperture and forming data of a second group of receive lines; constructing a full receive aperture by combining the first receive aperture and the second receive aperture, the full receive aperture centered in the area covering the first group of receive lines and the second group of receive lines; weighting a data of a receive line of the first group and a data of a receive line of the second group collinear with said receive of the first group respectively, and summing two weighted data.

Abstract: The invention relates to an ultrasonic system and a method for optimizing gray level value of ultrasonic images used in the ultrasonic system, the method comprises: an acquiring step for acquiring the ultrasonic image; a searching step for searching non-evenly divided sub-areas from the acquired ultrasonic image; analyzing step for analyzing the change of gray level in each of the sub-areas in the direction of depth; and calculating step for calculating an optimized gray level value of the ultrasonic image based on the result of the analyzing step. By implementing the method of present invention, a better image equilibrium effect is obtained in the ultrasonic system.

Abstract: An ultrasound imaging system and method provides for extended imaging.

Abstract: The present invention provides a method and module for preprocessing ultrasound imaging. The method comprises a calculation step for constructing a multivalue vector field and a smoothing step for smoothing the whole volume data. The method further comprises a judgement step and minification and magnification steps. The module includes a calculation unit, a smoothing unit, a judgement unit, a minification unit and a magnification unit. According to the method for preprocessing ultrasound imaging, speckle noise can be eliminated effectively by calculating a mean value of a plurality of nodes distributed over the surface, so as to implement the smoothing. Therefore, this method is capable of smoothing data without compromising details.

Abstract: A method and device for transmission of wide beam in ultrasonic diagnostic systems is disclosed. The method comprises: dividing an aperture of an ultrasonic probe into N sub-apertures; laterally dividing a focus into N sub-focuses, wherein the N sub-apertures correspond to the N sub-focuses respectively, each sub-aperture has M array elements which all focus on a sub-focus corresponding to said sub-aperture; and N and M are integers larger than 2; exciting the N sub-apertures by a pulse generator, so as to obtain a laterally stretched transmit acoustic filed, wherein the transmit acoustic fields of the N sub-apertures focus on the corresponding sub-focuses respectively; and accumulating the acoustic fields of the sub-apertures to form an acoustic field of a wide beam covering acoustic fields of all receive lines.

Abstract: A circular arc wide beam transmission method includes setting parameters for a focusing circular arc and calculating a transmission delay for each of the array elements in a transmission aperture of a probe based on the parameters for the focusing circular arc. An ultrasonic imaging system controls each array element to transmit ultrasonic waves according to the transmission delay for that array element.

Abstract: The present invention provides a method and apparatus for fast 3D ultrasound imaging. The method comprises data acquisition, desired data selection, data smoothing, table construction, ray casting, table look-up, ray synthesis and final result output. The apparatus comprises an acquisition module, a table look-up module, a synthesis module and an output module. The present invention can avoid a huge amount of unnecessary reconstruction calculations by smoothing preprocessing and constructing the reconstruction table and the gradient table as well as transforming coordinates of the points where necessary. The present invention has greater practical applicability, because the existing imaging technology demands that the radius for rotating the probe be identical to the radius of the probe.

Abstract: Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided.

Abstract: A method for enhancing an ultrasound image is provided, wherein the ultrasound image is segmented into a feature region and a non-feature region, while sufficiently utilizing features contained in the ultrasound image, in particular including some inconspicuous features. the enhanced image according to present invention is not susceptive of the image segmentation and avoid dependence of the enhancement effect on the segmentation template, so as not to produce an evident artificial boundary between the feature region and the non-feature region but to highlight some special information in the image and to remove or mitigate invalid information. Thus the enhanced ultrasound image is particularly suitable for the visual system of the human beings.

Abstract: A method for enhancing an ultrasound image is provided, wherein the ultrasound image is segmented into a feature region and a non-feature region, while sufficiently utilizing features contained in the ultrasound image, in particular including some inconspicuous features. the enhanced image according to present invention is not susceptive of the image segmentation and avoid dependence of the enhancement effect on the segmentation template, so as not to produce an evident artificial boundary between the feature region and the non-feature region but to highlight some special information in the image and to remove or mitigate invalid information. Thus the enhanced ultrasound image is particularly suitable for the visual system of the human beings.