Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus for detecting inside stenosis to identify tissue vibration aroused therefore using ultrasonic technique

A tissue and equipment technology, applied in the field of vascular health analysis, can solve problems such as inability to analyze disturbance information

Inactive Publication Date: 2009-10-14
WASHINGTON STATE UNIVERSITY
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these criteria are already quite useful, this technique cannot analyze the perturbation information present in the wall vibration spectrum

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
  • Apparatus for detecting inside stenosis to identify tissue vibration aroused therefore using ultrasonic technique
  • Apparatus for detecting inside stenosis to identify tissue vibration aroused therefore using ultrasonic technique
  • Apparatus for detecting inside stenosis to identify tissue vibration aroused therefore using ultrasonic technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0092] The figures and disclosed embodiments are non-limiting

[0093] Exemplary embodiments are shown in the reference figures of the drawings. It is intended that the embodiments and figures disclosed herein should be considered as illustrative rather than restrictive.

[0094] tissue vibration imaging system

[0095] figure 1 is a block diagram illustrating an ultrasound system 10 that is generally similar to conventional ultrasound systems, but that has been modified to include tissue vibration imaging and thus can be used to practice the principles disclosed herein. The ultrasound system 10 includes an ultrasound transducer 12 that transmits a signal modulated with a number of cycles (ie, 2-20 cycles) at a carrier frequency of typically 1 MHz-15 MHz. The transmitted signal is reflected by scatterers (not shown) along the beam path and received after a time delay whose duration depends on the distance scattered from the transducer. In the acquisition phase, the aco...

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

Real-time signal processing techniques are used for ultrasound imaging of tissue vibrations for locating sources of noise in 2D images relative to anatomical structures and / or for obtaining simultaneous information about vibrations and underlying blood flow. A collection of ultrasound echoes can be used to quantitatively assess murmurs. The signal processor allows estimation of wall displacement and display of time-resolved vibration spectra. Vibrations are detected and color coded according to amplitude and frequency, and superimposed in real time on B-mode and / or color flow images. The proposed vibration imaging algorithm utilizes data acquired during conventional ultrasound color flow imaging as well as clutter signals that are usually suppressed in color flow imaging in order to detect and characterize tissue vibrations. Vibration-based parametric modeling and other standard three vibration imaging algorithms distinguish clutter, blood flow and vibration. These techniques can be used to detect, localize, image and quantitatively grade narrowing in blood vessels.

Description

[0001] government rights [0002] This invention was made, at least in part, under a license from the United States Office of Naval Research (grant number N00014-01-G-0460), and the United States Government may have certain rights in the invention. technical field [0003] The subject matter of the present invention relates generally to the analysis of vascular health, and more particularly to the use of ultrasound data to detect and localize tissue vibrations caused by stenosis, such vibrations indicating the presence of stenosis and the threat to the health of the blood vessel. Background technique [0004] For more than two centuries, arterial narrowing has been associated with audible sounds called bruits with a stethoscope. Auscultation (passive listening with a stethoscope) is routinely used to qualitatively assess the loudness and pitch of murmurs and rustles of many vascular diseases such as renovascular hypertension, coronary artery disease, peripheral arterial dise...

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): A61B8/00
CPCA61B5/02007G01S7/52036A61B8/08G01S15/8981G01S7/52026A61B5/7257G01S7/52034G01S7/52071A61B8/02A61B8/00
Inventor K·比奇Y·金S·西克达
Owner WASHINGTON STATE UNIVERSITY