WO2005032375A3 - Ultrasonic blood vessel measurement apparatus and method - Google Patents

Ultrasonic blood vessel measurement apparatus and method Download PDF

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Publication number
WO2005032375A3
WO2005032375A3 PCT/US2004/033352 US2004033352W WO2005032375A3 WO 2005032375 A3 WO2005032375 A3 WO 2005032375A3 US 2004033352 W US2004033352 W US 2004033352W WO 2005032375 A3 WO2005032375 A3 WO 2005032375A3
Authority
WO
WIPO (PCT)
Prior art keywords
media
lumen
intima
imt
adventitia
Prior art date
Application number
PCT/US2004/033352
Other languages
French (fr)
Other versions
WO2005032375A2 (en
Inventor
Terry Fritz
Helmuth Fritz
Original Assignee
Sonosite Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sonosite Inc filed Critical Sonosite Inc
Priority to EP04809905.5A priority Critical patent/EP1677681B1/en
Publication of WO2005032375A2 publication Critical patent/WO2005032375A2/en
Publication of WO2005032375A3 publication Critical patent/WO2005032375A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/60—Analysis of geometric attributes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0858—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving measuring tissue layers, e.g. skin, interfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461—Displaying means of special interest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/467—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient characterised by special input means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/56—Details of data transmission or power supply
    • A61B8/565—Details of data transmission or power supply involving data transmission via a network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30101—Blood vessel; Artery; Vein; Vascular

Abstract

An apparatus and method for determining the apparent intima-media thickness (IMT) of arteries through acquisition and analysis of ultrasound images comprising an array of pixel intensities. An acquired image may be referenced, determining threshold values relating to the intensity of pixels forming images of portions of an artery wall, particularly the lumen, media, and adventitia. A datum, or datums, may be established across multiple columns of pixels bounding the portion of the image containing either the lumen/intima boundary, the media/adventitia boundary, or both. The datums may be approximate the shape of one more of the lumen, intima, media, and adventitia. Within a bounded portion of the image, a method may search for intensity gradients having characteristics indicating the gradients represent probable locations of the lumen/intima and media/adventitia boundaries. A valid gradient may be identified by its proximity to a characteristic point on a graph of pixel intensities or to a datum line, by an intensity above or below a threshold, or both. An IMT measurement is calculated based on the location of the lumen/intima and media/adventitia boundaries. An IMT measurement may be adjusted for sloping or tapering of an artery wall. Taper adjustment may be accomplished by normalizing an IMT measurement based on a compiled database of IMT measurements relating the amount of taper with respect to location to characteristic IMT values.
PCT/US2004/033352 2003-10-09 2004-10-08 Ultrasonic blood vessel measurement apparatus and method WO2005032375A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04809905.5A EP1677681B1 (en) 2003-10-09 2004-10-08 Ultrasonic blood vessel measurement apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/682,699 US6835177B2 (en) 2002-11-06 2003-10-09 Ultrasonic blood vessel measurement apparatus and method
US10/682,699 2003-10-09

Publications (2)

Publication Number Publication Date
WO2005032375A2 WO2005032375A2 (en) 2005-04-14
WO2005032375A3 true WO2005032375A3 (en) 2005-08-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/033352 WO2005032375A2 (en) 2003-10-09 2004-10-08 Ultrasonic blood vessel measurement apparatus and method

Country Status (3)

Country Link
US (2) US6835177B2 (en)
EP (1) EP1677681B1 (en)
WO (1) WO2005032375A2 (en)

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US8771191B2 (en) 2014-07-08
EP1677681B1 (en) 2019-12-18
US20040116808A1 (en) 2004-06-17

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