摘要:
An ultrasound imaging apparatus (20) is disclosed, comprising a data interface (30) configured to receive a plurality of different ultrasound data sets (26, 28) resulting from an ultrasound scan of an object (18) in different viewing directions. The ultrasound imaging apparatus further comprises a segmentation unit (32) for segmenting anatomical structures of the object in the different ultrasound data sets and for providing segmentation data of the anatomical structures, and a reference determining unit (34) for determining a spatial reference (48, 50, 52, 54) for the different ultrasound data sets on the basis of the segmentation data. A confidence determining unit (40) is included for determining confidence values (56) for different regions of the received ultrasound data on the basis of the spatial reference.
摘要:
An apparent point-source transmit transducers comprises a substantially constant-thickness shell of piezoelectric material in a shape of a spherical-section. Such transducers may be sized such that a single apparent point-source transmit transducer may produce ultrasound waveforms with substantial energy in a medium to be imaged. Use of such transducers in three-dimensional ping-based imaging may permit deeper and higher quality imaging than may be possible with conventional transducers.
摘要:
An image compounding apparatus acquires, via ultrasound, pixel-based images (126-130) of a region of interest for, by compounding, forming a composite image of the region. The image includes composite pixels (191) that spatially correspond respectively to pixels of the images. Further included is a pixel processor for beamforming with respect to a pixel from among the pixels, and for assessing, with respect to the composite pixel and from the data acquired (146), amounts of local information content of respective ones of the images. The processor determines, based on the assessment, weights for respective application, in the forming, to the pixels, of the images, that spatially correspond to the composite pixel. In some embodiments, the assessing commences operating on the data no later than upon the beamforming. In some embodiments, brightness values are assigned to the spatially corresponding pixels; and, in spatial correspondence, the maximum and the mean values are determined. They are then utilized in weighting the compounding.
摘要:
An apparent point-source transmit transducers comprises a substantially constant-thickness shell of piezoelectric material in a shape of a spherical-section. Such transducers may be sized such that a single apparent point-source transmit transducer may produce ultrasound waveforms with substantial energy in a medium to be imaged. Use of such transducers in three-dimensional ping-based imaging may permit deeper and higher quality imaging than may be possible with conventional transducers.
摘要:
A multiple aperture ultrasound imaging system may be configured to store raw, un-beamformed echo data. Stored echo data may be retrieved and re-beamformed using modified parameters in order to enhance the image or to reveal information that was not visible or not discernible in an original image. Raw echo data may also be transmitted over a network and beamformed by a remote device that is not physically proximate to the probe performing imaging. Such systems may allow physicians or other practitioners to manipulate echo data as though they were imaging the patient directly, even without the patient being present. Many unique diagnostic opportunities are made possible by such systems and methods.
摘要:
An ultrasonic diagnosis apparatus according to an embodiment includes a controller (18), a processor (12), and an image generator (15). The controller (18) selects at least one transducer element in a reception aperture formed of a transducer element group arranged in a predetermined direction, based on at least one of a deflection angle of an ultrasonic wave, an angle between the predetermined direction and a direction indicating a boundary of a structure, and an angle between a direction perpendicular to a normal direction where the predetermined direction intersects with a center of the transducer element group and the direction indicating the boundary. The processor (12) performs processing such that a signal intensity of a reception signal generated in the at least one transducer element is reduced, to output the reception signal of the reception aperture. The image generator (15) generates ultrasonic image data, based on the reception signal.