摘要:
An ultrasound system comprises a probe including a two-dimensional (2D) array of transducer elements that form an aperture having a plurality of receive elements that are configured to receive ultrasound signals. The transducer elements form at least one transmit sub-aperture that is configured to be interconnected with a fixed group of the transducer elements within the aperture. Transmitters generate electrical transmit signals, and at least one transmit sub-aperture processor (tx SAP) maps the transducer elements within the fixed group of the transducer elements to the transmitters in a transmit configuration based on a beam steering direction.
摘要:
An ultrasound system comprises a probe including a two-dimensional (2D) array of transducer elements that form an aperture having a plurality of receive elements that are configured to receive ultrasound signals. The transducer elements form at least one transmit sub-aperture that is configured to be interconnected with a fixed group of the transducer elements within the aperture. Transmitters generate electrical transmit signals, and at least one transmit sub-aperture processor (tx SAP) maps the transducer elements within the fixed group of the transducer elements to the transmitters in a transmit configuration based on a beam steering direction.
摘要:
An ultrasound system comprises a probe including a two-dimensional (2D) array of transducer elements that form an aperture having a plurality of receive elements that are configured to receive ultrasound signals. The transducer elements form at least one transmit sub-aperture that is configured to be interconnected with a fixed group of the transducer elements within the aperture. Transmitters generate electrical transmit signals, and at least one transmit sub-aperture processor (tx SAP) maps the transducer elements within the fixed group of the transducer elements to the transmitters in a transmit configuration based on a beam steering direction.
摘要:
An ultrasound imaging system (100). An exemplary system (100) includes a plurality of transducer elements (136) formed in subarrays (140) and a plurality of subarray circuit units (160′), with each circuit unit (160′) connected to a subarray (140) of the transducer elements (136). The circuitry in each unit (160′) comprises a plurality of integrated circuits (330, 340, 350), with at least a first (340) of the integrated circuits formed over a second (330) of the integrated circuits in a stacked configuration. In an example illustration the first integrated circuit (340) includes a first plurality of first bond pads (345) along a surface (342) thereof and the second integrated circuit (330) includes a second plurality of second bond pads (335) along a surface (331) thereof, with bond wires (344) extending between pairs of first and second bond pads to provide input/output signal connections therebetween.
摘要:
A method for clutter filter processing is provided. The method provides for extracting a blood component from an element signal produced by an element to obtain a filtered element signal, and extracting a blood component from a beamsum signal to obtain a filtered beamsum signal, calculating a time delay estimate between the filtered element signal and the filtered beamsum signal, or between the filtered element signal and the beam sum signal, or between the element signal and the filtered beamsum signal and applying the time delay estimate to correct transmit and receive beamforming time delays for the element. Systems and apparatus that afford functionality of the type defined by this method may be provided by the present technique.
摘要:
Methods and systems for controlling communication of data in an ultrasound system are provided. One method includes receiving ultrasound data from a plurality of channels of an ultrasound probe in an ultrasound system and digitally demodulating the received ultrasound data such that a data transfer rate of the digitally demodulated ultrasound data is lower than a data transfer rate of the received ultrasound data before digital demodulation. The method further includes processing the digitally demodulated ultrasound data, wherein the processing is performed using a processor of the ultrasound system.
摘要:
Methods and systems for monitoring a transducer array in an ultrasound probe are provided. One method includes acquiring ultrasound data using an ultrasound probe during an imaging mode of operation, wherein the ultrasound data includes echo information. The method further includes comparing the echo information from a plurality of transducer elements of a transducer array of the ultrasound probe during the imaging mode of operation, wherein the echo information is non-beamformed signal data. The method also includes determining non-uniformity information for the transducer array using the compared echo information during the imaging mode of operation.
摘要:
A method and apparatus for generating ultrasound pulses comprises producing a multi-level pulse sequence including a series of pulses. The series of pulses includes at least three pulses having three different amplitudes, respectively. The amplitudes are at least one of a positive non-zero voltage, a negative non-zero voltage, and an intermediate level voltage. The multi-level pulse sequence may be produced by a switch network having at least three different input voltage levels. The switch network outputs the multi-level pulse sequence at an output node to a transducer within a probe. Echo signals based on the series of pulses are received, and an ultrasound image is produced based on the received echo signals.
摘要:
An ultrasound system is provided comprising an ultrasound probe having a 2D matrix of transducer elements transmitting a continuous wave (CW) Doppler transmit signal into an object of interest. The CW transmit signal includes a dither signal component and the probe receives ultrasound echo signals from the object in response to the CW transmit signal. The probe generates an analog CW receive signal based on the ultrasound echo signals. An analog to digital (A/D) converter converts the analog CW receive signal to a digital CW receive signal at a predetermined sampling frequency and a processor processes the digital CW receive signal in connection with CW Doppler imaging.
摘要:
A sub-aperture transceiver system for an ultrasound probe includes a signal processor, receive signal connections connecting the signal processor to a receive aperture comprising acoustic transceiver elements, and transmit signal connections coupled to a transmit aperture that includes at least one acoustic transceiver element multiplexed with the receive aperture.