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 |
20090187099 | TIMING CONTROLLER FOR COMBINED PHOTOACOUSTIC AND ULTRASOUND IMAGER - The present disclosure is directed to a combined photoacoustic (PA) and ultrasound imaging system capable of generating PA and ultrasound images simultaneously. These images can be combined and displayed in real-time. The PA images are acquired by firing a illumination system into a sample being imaged and beamforming the received photoacoustic signals. Ultrasound images are formed by transmitting ultrasound energy into the object and beamforming the reflected signals. The present disclosure describes a timing controller to allow the illumination system and ultrasound transmissions to be timed relative to one another. This allows both modalities to operate at close to their maximum frame rates while preventing signal interference. | 07-23-2009 |
20100049044 | COMBINED PHOTOACOUSTIC AND ULTRASOUND IMAGING SYSTEM - The present disclosure provides for a system that is adapted to simultaneously display photoacoustic and ultrasound images of the same object. An image combiner can perform spatial and temporal interpolation of the two images before generating a combined image. The combined image is then displayed on a display such as an LCD or CRT. The system is able to use motion estimates obtained from the ultrasound data to enhance the photoacoustic image thereby increasing its apparent frame rate, registering consecutive frames in order to reduce artifacts. The system is capable of generating combined ultrasound and photoacoustic images which are registered spatially and temporally. | 02-25-2010 |
20100210947 | Vascular Flow Sensor With Acoustic Coupling Detector - A vascular flow sensor assembly includes an ultrasound transducer ( | 08-19-2010 |