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1. WO2000043809 - 3D/4D ULTRASOUND IMAGING SYSTEM

Publication Number WO/2000/043809
Publication Date 27.07.2000
International Application No. PCT/GB2000/000167
International Filing Date 21.01.2000
Chapter 2 Demand Filed 14.08.2000
IPC
G01S 15/89 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO 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
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
CPC
A61B 8/485
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
8Diagnosis using ultrasonic, sonic or infrasonic waves
48Diagnostic techniques
485involving measuring strain or elastic properties
G01S 15/8993
GPHYSICS
01MEASURING; TESTING
SRADIO 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
15Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88Sonar systems specially adapted for specific applications
89for mapping or imaging
8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
8993Three dimensional imaging systems
Applicants
  • SMYTHE, David [GB/GB]; GB
Inventors
  • SMYTHE, David; GB
Agents
  • KENNEDYS; Patent Agency Limited Floor 4, Queens House 19-29 St. Vincent Place Glasgow G1 2DT, GB
Priority Data
9901306.221.01.1999GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) 3D/4D ULTRASOUND IMAGING SYSTEM
(FR) SYSTEME D'IMAGERIE ULTRASONORE 3D/4D
Abstract
(EN)
Method and apparatus for 3D/4D ultrasonic imaging. An array of ultrasonic sources and receivers (7) positioned over or near tissue (6) transmit short encoded omnidirectional ultrasonic shots (9). The amplitude and phase of the resulting reflected waves (10) are detected, sampled and digitised. Traces from each shot are reconstructed by digital data processing. A three dimensional data volume is constructed corresponding to reflection amplitude through a regular volume. The data volume may then be imaged through any arbitrary plane. Time varying images can be readily produced as the process takes only a fraction of a second.
(FR)
L'invention se rapporte à un procédé et à un appareil d'imagerie ultrasonore 3D/4D. Un ensemble de sources ultrasonores et de récepteurs (7) en position sus-jacente ou adjacente au tissu (6) émettent de courtes impulsions ultrasonores omnidirectionnelles, codées. L'amplitude et la phase des ondes réfléchies résultantes (10) sont détectées, échantillonnées et numérisées. Les traces de chaque impulsion sont reconstruites au moyen d'un traitement de données numériques. Un volume de données tridimensionnel est construit en fonction de l'amplitude de la réflexion dans un volume normal. Le volume de données peut ensuite être imagé dans tout plan arbitraire. Les images variant dans le temps peuvent être facilement produites du fait que le processus ne requiert qu'une fraction de seconde.
Also published as
EP2007012077
Latest bibliographic data on file with the International Bureau