Ultrasound Flow Doppler Audio with Pitch Shift

A Doppler and Doppler shift technology, applied in the field of medical diagnostic ultrasound systems, which can solve problems such as challenges and difficulties

Active Publication Date: 2014-10-29
KONINKLIJKE PHILIPS ELECTRONICS NV
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This challenge is made even more difficult by the fact that the Doppler demodulation frequency plays a role in the Doppler audio sound

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultrasound Flow Doppler Audio with Pitch Shift
  • Ultrasound Flow Doppler Audio with Pitch Shift
  • Ultrasound Flow Doppler Audio with Pitch Shift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] first reference figure 1 , shows in block diagram form an ultrasound system constructed in accordance with the principles of the present invention. The array transducer 12 of the ultrasound probe 10 transmits ultrasound waves and receives ultrasound echo signals in response to the transmitted signals. Elements of the array transducer 12 are shown emitting an ultrasound beam over a fan-shaped field of view 100 and along a Doppler beam axis 22 . Ultrasound transmission by the array transducers is controlled by a transmit beamformer 62, which controls parameters such as the frequency of transmission and the timing of transmission of individual elements of the array. The elements of the transducer array convert the received ultrasound signals into electrical signals, which are sent by transmit / receive (T / R) switch 26 to receive beamformer 64 . The receive beamformer 64 forms coherent echo signal samples S(t) from the signals received from the transducer elements. The tra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An ultrasonic diagnostic imaging system produces audio Doppler from detected Doppler signals. The Doppler signals are detected in a band of frequencies which corresponds to the velocity of blood flow signals, and Doppler information is displayed based on the detected band of frequencies. The audio Doppler system produces Doppler audio in a frequency band which is shifted in pitch from the detected band of frequencies. The operator of the ultrasound system is provided with a user control by which the degree of pitch shifting can be controlled. The ultrasound system displays Doppler blood flow velocities referenced to a transmit Doppler frequency f0, with the audio Doppler being shifted in pitch from the frequencies corresponding to the blood flow velocities.

Description

technical field [0001] The present invention relates to medical diagnostic ultrasound systems, and in particular, to ultrasound systems capable of generating Doppler audio in pitch control. Background technique [0002] The use of Doppler audio to diagnose blood flow dates back decades. In the years before real-time video display of Doppler flow characteristics, audio was the only means of diagnosing blood flow with ultrasound. Physicians aim the Doppler probe at the organ or vessel of interest, without the aid of video, and listen for the characteristic pulsating "swoosh" of blood flow. Since the Doppler shift is typically in the kilohertz range or lower, the amplified Doppler frequency signal can be used to directly drive audio speakers. This maintains the way ultrasound Doppler signals are generated from blood flow today. However, as real-time video display of Doppler flow, such as spectral Doppler and color flow Doppler provides a more precise and spatially specific w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/06A61B8/08G01S15/89
CPCA61B8/488G01S7/52066A61B8/06G01S15/8979
Inventor A·阿加瓦尔D·霍普辛普森D·W·克拉克
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap