Patent application number | Description | Published |
20090069692 | Ultrasonic Synthetic Transmit Focusing With a Multiline Beamformer - An ultrasonic diagnostic imaging system produces an image with an extended focal range by transmitting a plurality of beams spaced along an array for multiline reception. The receive multilines of a plurality of transmit beams are spatially aligned and are combined with phase adjustment between the respective receive multilines to prevent undesired phase cancellation. The combined multilines produce the effect of an extended transmit focus so that an image produced using the combined multilines exhibits an extended focal range. To prevent motion artifacts the multiline order is adjustable as a function of image motion. | 03-12-2009 |
20090156935 | Three Dimensional Diagnostic Ultrasound Imaging System with Image Reversal and Inversion - A three dimensional ultrasonic imaging system acquires 3D image data from a volumetric region and processes the image data to produce a live 3D image of the volumetric region in a given orientation. A user control can be switched by a user to present the image in a different orientation if desired. Both the anatomy in the 3D image and the image format can be inverted, and the left-right appearance of the 3D image can be reversed with a corresponding front-back reversal of the anatomy. | 06-18-2009 |
20100056921 | QUANTIFIED PERFUSION STUDIES WITH ULTRASONIC THICK SLICE IMAGING - An ultrasonic diagnostic imaging system scans a plurality of planar slices in a volumetric region containing tissue which has been perfused by a contrast agent. The plurality of slices scanned are parallel to each other. Following detection of the image data of the slices the slice data is combined by projecting the data in the elevation dimension to produce an elevationally combined slice image. Combining may be by means of an averaging or maximum intensity detection or weighting process or by raycasting in the elevation dimension in a volumetric rendering process. The elevationally combined slice image is processed to produce a qualitative or quantitative measure of perfusion, such as an image with degrees of perfusion indicated by a range of brightness levels, an image of color perfusion parameters, or a perfusion curve or curve parameter indicating rate of perfusion. | 03-04-2010 |
20100168580 | HIGH SPEED ULTRASONIC THICK SLICE IMAGING - An ultrasonic diagnostic imaging system scans a plurality of planar slices in a volumetric region which are parallel to each other. Following detection of the image data of the slices the slice data is combined by projecting the data in the elevation dimension to produce a “thick slice” image. Combining may be by means of an averaging or maximum intensity detection or weighting process or by raycasting in the elevation dimension in a volumetric rendering process. Thick slice images are displayed at a high frame rate of display by combining a newly acquired slice with slices previously acquired from different elevational planes which were used in a previous combination. A new thick slice image may be produced each time at least one of the slice images is updated by a newly acquired slice. Frame rate is further improved by multiline acquisition of the slices. | 07-01-2010 |
20130274606 | ANALYSIS OF MITRAL REGURGITATION BY ULTRASONIC IMAGING - An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve. A flow quantification processor ( | 10-17-2013 |
20130296703 | WALL FILTER FOR ULTRASONIC MITRAL REGURGITATION ANALYSIS - An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve. Echo signals received by an ultrasound probe ( | 11-07-2013 |
Patent application number | Description | Published |
20080288218 | Using Tissue Acceleration to Create Better Dti Waveforms (Doppler Tissue Imaging) for Crt (Cardiac Resynchronization Therapy) - The present invention allows one to reconstruct high quality velocity waveforms using data collected at comparatively slow frame rates, such data would have otherwise resulted in non-diagnostic and non-clinically useful waveforms. The invention is directed to reconstructing a high quality “continuous” velocity waveform, and uses instantaneous measures of acceleration in addition to velocity to reconstruct such a waveform. By simultaneously detecting the velocity and acceleration of a fixed point in space, one can more faithfully reproduce the corresponding velocity waveform using significantly lower sample rates. If images are acquired, then the velocity sample rate corresponds to the image frame rate. Also, depending on the number of looks or scan lines contained in an ensemble, double interleaving of the raw data is used. | 11-20-2008 |
20090184955 | METHOD AND APPARATUS FOR VOLUME RENDERING USING DEPTH WEIGHTED COLORIZATION - A method of volume rendering includes obtaining data ( | 07-23-2009 |
20100004540 | DUAL PATH PROCESSING FOR OPTIMAL SPECKLE TRACKING - This invention relates generally to an improved system and method that combines enhancing and mitigating techniques for speckle tracking, for obtaining a series of images of the movement of a target, such as tissue, over time. The method comprises steps of transmitting sound waves into the human body and outputting echoes of these sound waves; receiving and beamforming the echoes to produce scan line data; processing scan line data to display anatomical information using a method which reduces speckle; processing scan line data using a method or procedure which does not reduce speckle, and during one scan sequence, simultaneously acquiring the two scan line data, that data processed reducing speckle and that data processed without reducing speckle. | 01-07-2010 |
20100016725 | MULTI-BEAM TRANSMIT ISOLATION - A method for isolating ultrasound transmit beams and reducing cross-transmit beam interference in a multi-beam system involves transmitting a first ultrasound beam at a first and second positive angle and transmitting a second ultrasound beam at a first and second negative angle. The method further involves receiving a first, second, third, and fourth composite signals, where each of the composite signals includes a return signal and a reflected component. The method further includes applying a finite impulse response filter to the first and third composite signals and the second and fourth composite signals to obtain an average of the first and second composite signals and an average of the second and fourth composite signals and remove the reflected components. | 01-21-2010 |
20130261458 | ANALYSIS OF MITRAL REGURGITATION FROM SLIT ORIFICES BY ULTRASONIC IMAGING - An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a plurality of pinhole leaks or a slit leak of a mitral valve. A plurality of orifice locations of a leaking valve are identified and Doppler values obtained from a flow velocity field proximal each orifice. The Doppler values of each flow velocity field vectorially relating to the orifice location are processed to produce a measure of flow through the orifice. The flow measurements for a plurality of such orifices are summed to produce a quantified measure of regurgitant flow through a plurality of pinhole leaks or along a slit leak. | 10-03-2013 |