摘要:
Shear wave imaging is provided in medical diagnostic ultrasound. A region is imaged to determine a location in which to calculate shear velocity. The shear velocity is estimated for the location. The imaging may guide the identification of the location, reducing the time to determine useful shear information. The estimate of shear may be validated, such as using cross-validation, to indicate the confidence level of the shear value. The shear velocity may be displayed relative to a scale of shear velocities associated with a type of tissue, such as tissue for an organ. The location on a scale may be more intuitive for a user.
摘要:
Shear wave imaging is provided in medical diagnostic ultrasound. A region is imaged to determine a location in which to calculate shear velocity. The shear velocity is estimated for the location. The imaging may guide the identification of the location, reducing the time to determine useful shear information. The estimate of shear may be validated, such as using cross-validation, to indicate the confidence level of the shear value. The shear velocity may be displayed relative to a scale of shear velocities associated with a type of tissue, such as tissue for an organ. The location on a scale may be more intuitive for a user.
摘要:
Detection of tissue response is provided with a high pulse repetition frequency. A sequence of separable signals is transmitted in one event. For example, pulses at different frequencies are transmitted as separate waveforms, but in rapid succession. As another example, coded transmit pulses are used. After transmission of the pulses, signals are received. Based on the different frequencies or coding, tissue response is measured at different times based on the receive event. Instead of one measure, a plurality of measures are provided for a given transmit and receive event pair, increasing the effective pulse repetition frequency for shear or elasticity imaging.
摘要:
Detection of tissue response is provided with a high pulse repetition frequency. A sequence of separable signals is transmitted in one event. For example, pulses at different frequencies are transmitted as separate waveforms, but in rapid succession. As another example, coded transmit pulses are used. After transmission of the pulses, signals are received. Based on the different frequencies or coding, tissue response is measured at different times based on the receive event. Instead of one measure, a plurality of measures are provided for a given transmit and receive event pair, increasing the effective pulse repetition frequency for shear or elasticity imaging.
摘要:
Information is compounded in medical diagnostic ultrasound. Volumes from multiple acoustic windows for the infant head are aligned and combined. The combination provides a dataset better representing the entire region of interest. Additionally or alternatively, weighted combination of ultrasound data sets is provided. The weights adapt as a function of proximity to the transducer (e.g., near field verses far field), noise level, or other data quality parameters. In the infant head example, the adaptive weights may provide a composite data set better representing the infant head. Adaptive weights for the compounding may be used in situations other than an infant head scan.
摘要:
The invention comprises of a baby monitoring system that uses an automotive type monitor and a closed circuit camera, preferably a camera having low light capability. The monitor is situated in an area within the driver's line of vision, such as on a console, the dashboard, the rearview mirror, etc. The camera is mounted in an area outside the driver's line of vision, such as the rear seat or trunk or any area that is outside of the driver's view. This arrangement enables the driver to monitor the child, for example, a child who is secured in a rearward-facing child seat, as well as provides the monitor of a disabled person, animals, precious cargo, or other situations where a driver's immediate attention may be required or where constant monitoring may be required, but where it is preferred that the driver not divert his attention away from the operation of the vehicle.
摘要:
The present invention relates to a method and apparatus for providing voice control of a device, an ultrasound device for example. One embodiment of the present invention comprises an apparatus for providing voice control of the ultrasound device having a plurality of features. The apparatus comprises a memory device adapted to store a plurality of voice commands for controlling the ultrasound device, where the plurality of voice commands has at least two different voice commands that active a single feature of the ultrasound device; a selection module adapted to selecting at least one of the at least two different voice commands; and a translator module adapted to derive a signal from the selected voice command and transmit it to the ultrasound device.
摘要:
The present invention relates to a method and apparatus providing tissue harmonic imaging using an ultrasound machine. Coded pulses and the phase inverted version of the said coded pulses with time bandwidth greater than 1 are transmitted into the tissue. Backscattered echoes are received and filtered before or after coherent summation. Decoding/compressing of the received echoes of the coded pulses is implemented naturally through the propagation of the specially designed ultrawide band (>80%) waveforms inside tissue and pulse inversion. Costly decoding/compression filter are not necessary.
摘要:
Methods and systems for controlling an ultrasound system are provided. The method includes transmitting an imaging pulse sequence and transmitting at least one modification pulse between successive pulses in the imaging pulse sequence. The modification pulse is configured to change a contrast agent within an object being imaged by an ultrasound system.
摘要:
Certain embodiments include a system and method for improved compound imaging using a plurality of imaging modes. In an embodiment, a plurality of echo signals are received in response to a plurality of beams formed based on different imaging modes corresponding to different steering angles, such as steered or non-steered angles. The plurality of echo signals is compounded to form a compound image. In an embodiment, the imaging mode includes at least one of harmonic, fundamental, coded harmonic, and variable frequency imaging. Parameters may be generated for the plurality of beams formed based on different imaging modes corresponding to different steering angles. Additionally, the parameters may be stored. The echo signals may be filtered. Imaging mode may be controlled based on steering angle. Employing different imaging modes based on steering angles for spatial compound imaging helps reduce grating lobe artifacts while improving speckle reduction effect.