Non-imaging two dimensional array probe and system for classifying carotid stenosis

A non-imaging, carotid technology, applied in the field of medical diagnostic ultrasound systems, can solve problems such as lack of technical personnel, and achieve the effect of reducing costs

Active Publication Date: 2016-04-13
KONINKLJIJKE PHILIPS NV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, there is often a shortage of skilled personnel in these environments, and t

Method used

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  • Non-imaging two dimensional array probe and system for classifying carotid stenosis
  • Non-imaging two dimensional array probe and system for classifying carotid stenosis
  • Non-imaging two dimensional array probe and system for classifying carotid stenosis

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Embodiment Construction

[0018] first reference figure 1 , shows in block diagram form an ultrasound system constructed in accordance with the principles of the present invention. The ultrasound probe 10 comprises a transducer array 12 of transducer elements that transmit ultrasound waves into the body and receive returning echo signals for Doppler processing. Control and timing of ultrasound transmission and reception is provided by beamformer controller 16 which controls system beamformer 14 . The beamformer 14 is not a conventional delay and sum beamformer because the transducer array cannot operate in a phased manner. Instead, each element is individually actuated to transmit ultrasound waves from the element's front surface directly into the body, and independently receive reflections of the waves. The beamformer controls the timing of successive transmit-receive intervals (Pulse Repetition Interval or PRI) through each transducer such that the ensemble of time-spaced echoes is detected by each...

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Abstract

A non-imaging diagnostic ultrasound system for carotid artery diagnosis has a two dimensional array probe with a low element count and relatively large element size which can cover an area of the carotid artery at its bifurcation. The elements are operated independently with no phasing, and detect Doppler flow spatially beneath each element. The system produces maps of carotid blood flow in two or three dimensions and can assemble an extended view of the flow by matching segments of the carotid flow as the probe is moved over the vessel. Once the carotid artery has been localized, the degree of stenosis is assessed by automated measurements of peak systolic velocity and blood flow turbulence.

Description

technical field [0001] The present invention relates to medical diagnostic ultrasound systems, and in particular to non-imaging Doppler probe systems for automated screening for carotid artery stenosis. Background technique [0002] Stroke is the third leading cause of death worldwide. According to the World Health Organization, stroke accounted for more than 5.5 million deaths in 2002, with approximately 50% of those deaths occurring in China and India. Stroke accounts for 163,000 deaths in the United States, although incidence rates are declining in developed countries. A significant number of these deaths are thought to be the result of disease in the carotid bifurcation. The common carotid artery (CCA) branches into the internal carotid artery (ICA) and external carotid artery (ECA) at the carotid bifurcation, which is a common site of atherosclerotic disease. Narrowing, or narrowing, of the ICA (the branch that supplies blood to the brain) has long been linked to the...

Claims

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Application Information

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IPC IPC(8): A61B8/06A61B8/08
CPCA61B8/0891A61B8/488A61B8/5223A61B8/483A61B8/06G16H50/30A61B8/4483
Inventor K·帕拉尼萨米S·戈文纳哈里萨提恩安娜拉亚娜R·S·西索迪亚N·布萨S·M·文凯特桑S·塞特拉曼J·彼得鲁齐洛A·阿南德S·周R·Q·埃尔坎普V·巴萨瓦劳伊帕蒂尔欧卡里
Owner KONINKLJIJKE PHILIPS NV
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