FR3114032B1 - Méthode de génération d’un front d’onde acoustique à travers une paroi - Google Patents

Méthode de génération d’un front d’onde acoustique à travers une paroi Download PDF

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Publication number
FR3114032B1
FR3114032B1 FR2009355A FR2009355A FR3114032B1 FR 3114032 B1 FR3114032 B1 FR 3114032B1 FR 2009355 A FR2009355 A FR 2009355A FR 2009355 A FR2009355 A FR 2009355A FR 3114032 B1 FR3114032 B1 FR 3114032B1
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France
Prior art keywords
wall
interest
point
transducer
generating
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FR2009355A
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English (en)
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FR3114032A1 (fr
Inventor
Sylvain Chatillon
Ekaterina Iakovleva
Arthur Waguet
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Priority to FR2009355A priority Critical patent/FR3114032B1/fr
Publication of FR3114032A1 publication Critical patent/FR3114032A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4477—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device using several separate ultrasound transducers or probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
    • G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8977—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52046—Techniques for image enhancement involving transmitter or receiver
    • G01S7/52049—Techniques for image enhancement involving transmitter or receiver using correction of medium-induced phase aberration
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0808—Clinical applications for diagnosis of the brain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N2007/0078—Ultrasound therapy with multiple treatment transducers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy
    • A61N2007/0086—Beam steering
    • A61N2007/0095—Beam steering by modifying an excitation signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Multimedia (AREA)
  • Gynecology & Obstetrics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

                La présente invention concerne une méthode de formation d’un front d’onde ultrasonore derrière une paroi, notamment pour focaliser un faisceau en un point d’intérêt ou, selon une seconde variante, générer une onde plane dans une direction d’intérêt derrière cette paroi. Cette méthode fait appel à un lancer de rayon entre chaque transducteur élémentaire d’un transducteur multi-élément et le point d’intérêt ou bien, dans la seconde variante, entre un tel transducteur élémentaire et un plan de référence normal à la direction d’intérêt. Le rayon intersecte une première frontière délimitant la paroi en un premier point d’intersection et une seconde frontière délimitant la paroi en un second point d’intersection. Une fonction de coût donnant le temps de propagation le long du trajet du rayon est minimisée de manière itérative sur les coordonnées des points d’intersection au moyen d’un algorithme de Newton-Raphson. Les temps de propagation minimaux ainsi obtenus permettent de déduire une loi de retard/ de phase à appliquer sur les différents transducteurs élémentaires pour former le front d’onde souhaité. Fig. 2
FR2009355A 2020-09-15 2020-09-15 Méthode de génération d’un front d’onde acoustique à travers une paroi Active FR3114032B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2009355A FR3114032B1 (fr) 2020-09-15 2020-09-15 Méthode de génération d’un front d’onde acoustique à travers une paroi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2009355 2020-09-15
FR2009355A FR3114032B1 (fr) 2020-09-15 2020-09-15 Méthode de génération d’un front d’onde acoustique à travers une paroi

Publications (2)

Publication Number Publication Date
FR3114032A1 FR3114032A1 (fr) 2022-03-18
FR3114032B1 true FR3114032B1 (fr) 2024-01-12

Family

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FR2009355A Active FR3114032B1 (fr) 2020-09-15 2020-09-15 Méthode de génération d’un front d’onde acoustique à travers une paroi

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FR (1) FR3114032B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3155142A1 (fr) 2023-11-13 2025-05-16 Commissariat à l'Energie Atomique et aux Energies Alternatives Méthode de détermination d’un champ d’une onde ultrasonore à travers plusieurs parois

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710876A (en) 1985-06-05 1987-12-01 General Electric Company System and method for the display of surface structures contained within the interior region of a solid body
US6607489B2 (en) * 2001-04-05 2003-08-19 General Electric Company Focus correction for ultrasound imaging through mammography compression plate
US8088067B2 (en) 2002-12-23 2012-01-03 Insightec Ltd. Tissue aberration corrections in ultrasound therapy
FR3015742B1 (fr) * 2013-12-20 2016-01-22 Commissariat Energie Atomique Procede de traitement de signaux issus d'une acquisition par sondage ultrasonore, programme d'ordinateur et dispositif de sondage a ultrasons correspondants
WO2020157536A1 (fr) * 2019-01-31 2020-08-06 Oron Zachar Focalisation ultrasonore transcrânienne

Also Published As

Publication number Publication date
FR3114032A1 (fr) 2022-03-18

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