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 |
20090069693 | Retrospective Dynamic Transmit Focusing for Spatial Compounding - An ultrasonic diagnostic imaging system transmits a plurality of focused beams normal to the plane of a transducer aperture and receives multiple receive lines in response to each transmitted beam. Sub-apertures of the transducer aperture are defined by apodization and signals of the sub-apertures are aligned and combined to produce signals exhibiting the effect of transmit steering at different angles with respect to the sub-apertures. The steered signals are detected and the detected signals relating to common points in an image field are combined. The combined detected signals are used to produce an ultrasound image with reduced speckle. | 03-12-2009 |
20090099456 | Ultrasonic Synthetic Transmit Focusing With Motion Compensation - 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. | 04-16-2009 |
20090182235 | INCOHERENT RETROSPECTIVE DYNAMIC TRANSMIT FOCUSING - An ultrasonic diagnostic imaging system produces an image with an extended focal range and reduced speckle 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 with phase adjustment between the respective receive multilines to effect signal alignment, detected and combined. 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. Speckle is reduced by nonlinearly combining received multilines produced by different transmit apertures. | 07-16-2009 |
20120105645 | ULTRASONIC IMAGING WITH A VARIABLE REFRACTIVE LENS - The present invention relates to a method for producing an ultrasound image with a variable refractive lens ( | 05-03-2012 |
20120116220 | SPATIALLY-FINE SHEAR WAVE DISPERSION ULTRASOUND VIBROMETRY SAMPLING - Shear wave dispersion ultrasound vibrometry (SDUV) is implemented in some embodiments to form, from a single tracking pulse, in-parallel-directed receive lines ( | 05-10-2012 |
20130041252 | ULTRASONIC TRACKING OF ULTRASOUND TRANSDUCER(S) ABOARD AN INTERVENTIONAL TOOL - In one aspect, an ultrasound receive beamformer ( | 02-14-2013 |
20130317362 | SHEAR WAVE VELOCITY ESTIMATION USING CENTER OF MASS - The weighted-average-based position ( | 11-28-2013 |
20140005548 | ULTRASONIC ACOUSTIC RADIATION FORCE EXCITATION FOR ULTRASONIC MATERIAL PROPERTY MEASUREMENT AND IMAGING | 01-02-2014 |
20140121502 | OBJECT-POSE-BASED INITIALIZATION OF AN ULTRASOUND BEAMFORMER - Beamforming to image an object ( | 05-01-2014 |