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Ultrasonic color flow map for analysis of mitral regurgitation

A color flow and ultrasound system technology, applied in the field of medical diagnostic ultrasound systems, can solve problems such as color winding

Active Publication Date: 2015-03-04
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause aliasing at the intended constant velocity, causing wrapping of displayed colors above the constant velocity

Method used

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  • Ultrasonic color flow map for analysis of mitral regurgitation
  • Ultrasonic color flow map for analysis of mitral regurgitation
  • Ultrasonic color flow map for analysis of mitral regurgitation

Examples

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Embodiment Construction

[0016] first reference figure 1 , shows in the form of a block diagram an ultrasonic diagnostic imaging system constructed according to the principles of the present invention. exist figure 1 In this example, a transducer array 10' is provided in an ultrasound probe 10 for transmitting ultrasound waves and receiving echo information. The transducer array 10' is preferably a two-dimensional array of transducer elements capable of scanning in three dimensions (such as in both height and azimuth with respect to the position of the mitral valve) for 3D imaging. The transducer array is coupled to a microbeamformer 12 in the probe, which controls the transmission and reception of signals through the elements of the array. As described in US Pat. Partial beamforming. The microbeamformer is coupled via a probe cable to a transmit / receive (T / R) switch 16, which toggles between transmit and receive and protects the main beamformer 20 from high energy transmit signals. The transmis...

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PUM

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Abstract

An ultrasonic diagnostic imaging system is described which assesses regurgitant flow through a mitral valve by colorflow imaging. A Doppler processor produces Doppler velocity measurements of blood flow around a regurgitant valve to identify an iso-velocity surface to be used in the PISA method of regurgitant flow quantification. The velocity measurements are used to color pixels in the colorflow image and are mapped to a plurality of colors for a color bar used with the image. The color bar exhibits distinct color transitions at one or more velocities in the velocity range of the color bar which distinctively identify an iso-velocity surface in the colorflow image. The color bar may be formed with an aliasing velocity in the middle of the bar, between a zero velocity reference color of the bar and an end of the bar, and the aliasing velocity aligned with a desired iso-velocity and used to create the color transition.

Description

technical field [0001] The present invention relates to medical diagnostic ultrasound systems, and in particular to the use of diagnostic ultrasound imaging systems for the analysis of mitral regurgitant flow. Background technique [0002] Reflux flow is a serious medical condition that requires analysis and appropriate management. Just before the left ventricle contracts to pump blood into the body, the mitral valve must fully close so that contraction will eject the full flow of blood into the aorta. If the valve does not close completely, some of the blood in the left ventricle will be ejected back into the left atrium through the opening in the valve that does not seal completely. This regurgitation of blood—usually small, brief jets of blood flow back through the valve leaflets that are not fully closed—reduces blood flow from the heart and thus reduces the efficiency of each heart contraction. The heart must then pump more rapidly in order for the body to provide its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/06A61B8/08A61B8/00G01S15/89G01S7/52
CPCA61B8/461A61B8/488A61B8/065A61B8/5215A61B8/0883G01S7/52073G01S7/52071G01S15/8979A61B8/5246A61B8/466G16H50/20A61B8/486A61B8/5207A61B8/5223A61B8/54
Inventor K·E·蒂勒Q·魏M·什雷斯塔
Owner KONINKLJIJKE PHILIPS NV
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