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Automated identification of the location of a regurgitant orifice of a mitral valve in an ultrasound image

An ultrasound image and reflux technology, applied in the field of medical diagnostic ultrasound systems, can solve problems such as errors, inaccurate flow calculation, and ineffectiveness

Inactive Publication Date: 2015-06-24
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the accuracy of the PISA technique relies on knowing the orifice location in order to measure the distance r, these obstacles to accurately knowing the orifice location can lead to inaccurate r measurements and thus inaccurate flow calculations
Experiments have demonstrated that an error of as little as one millimeter in orifice position can lead to significant errors in calculating flow through a leak
In addition, it is well known that many regurgitant valves do not have a single pore leak, but rather a leak along the impermeable valve closing fissure
It is not valid to assume that the leak is caused by a single hole through the valve

Method used

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  • Automated identification of the location of a regurgitant orifice of a mitral valve in an ultrasound image
  • Automated identification of the location of a regurgitant orifice of a mitral valve in an ultrasound image
  • Automated identification of the location of a regurgitant orifice of a mitral valve in an ultrasound image

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Embodiment Construction

[0023] first reference figure 1 , shows in block diagram form an ultrasonic diagnostic imaging system constructed in accordance with the principles of the present invention. exist figure 1In the ultrasonic probe 10, a transducer array 10' is provided to transmit ultrasonic waves and receive echo information. The transducer array 10' is preferably a two-dimensional array of transducer elements capable of, for 3D imaging, in three dimensions - for example in both elevation and azimuth with respect to the position of the mitral valve Medium - to scan. The transducer array is coupled to a microbeamformer 12 in the probe, which controls the transmission and reception of signals from the elements of the array. As described in U.S. Patents 5,997,479 (Savord et al.), 6,013,032 (Savord), and 6,623,432 (Powers et al.), microbeamformers are capable of at least partially beamforming received signals by groups or "patches" of transducer elements . The micro beamformer is coupled via a...

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Abstract

An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve, including the automatic indication of the location of a regurgitant orifice in an ultrasound image. A clinician images the regurgitant valve and indicates in the image the presumed location of the regurgitant orifice (130). A flow quantification processor is responsive to this initial location estimate by the clinician to calculate a refined estimation of the orifice location. The refined location is indicated on the ultrasound image by the imaging system, either by relocating an icon placed by the clinician, or displaying a second icon (132) on the image at the refined location.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 61 / 426699, filed December 23, 2010. technical field [0003] 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 regurgitation. Background technique [0004] Reflux 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 close completely so that the 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 through the gap in the partially closed valve back into the left atrium. This regurgitation of blood—usually a small, brief jet of blood flowing back through the valve leaflets that do not fully close—redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/08A61B8/06
CPCA61B8/0883A61B8/13G01S15/8993G01S15/8984G01S7/52073G01S15/8981G01S7/52071A61B8/06A61B8/488A61B8/5223A61B8/145A61B8/4444A61B8/4488A61B8/463A61B8/5207
Inventor Q·魏K·E·蒂勒A·约加内森C·H·叶
Owner KONINK PHILIPS ELECTRONICS NV