GB2137752A - Ultrasonic imaging system with cross correlation - Google Patents
Ultrasonic imaging system with cross correlationInfo
- Publication number
- GB2137752A GB2137752A GB08412805A GB8412805A GB2137752A GB 2137752 A GB2137752 A GB 2137752A GB 08412805 A GB08412805 A GB 08412805A GB 8412805 A GB8412805 A GB 8412805A GB 2137752 A GB2137752 A GB 2137752A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- delay
- ultrasonic signals
- array
- imaging system
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000003384 imaging method Methods 0.000 title abstract 2
- 210000004872 soft tissue Anatomy 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 abstract 1
Classifications
-
- 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
- G01S15/8922—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being concentric or annular
-
- 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
- G01S7/52023—Details of receivers
- G01S7/52025—Details of receivers for pulse systems
- G01S7/52026—Extracting wanted echo signals
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
An ultrasonic imaging system (11) for soft tissue includes an array (13) of transducer elements (15-1 through 15-21) for receiving ultrasonic signals reflected from within the medium being examined. A plurality of signal delay lines (22-1 through 22-21) are connected to receive the ultrasonic signals from each of the transducer elements (15-1 through 15-21) of the array (13). A correlation processor (26) is also connected to receive the ultrasonic signals from each transducer element (15-1 through 15-21) in the array (13) for determining differences in delay for each signal from inhomogeneities within the tissue, either through use of a plurality of cross-correlation values for each signal or by identifying a peak amplitude for each signal and comparing a temporal position of the peak amplitudes for each signal, and for adjusting a length of delay of at least one of the plurality of delay lines (22-1 through 22-21) based on the delay differences. As a result of the adjustment, the ultrasonic signals are provided as substantially in phase outputs from each of the plurality of delay lines (22 through 22-21).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42769482A | 1982-09-29 | 1982-09-29 | |
PCT/US1983/001469 WO1984001435A1 (en) | 1982-09-29 | 1983-09-22 | Ultrasonic imaging system with cross correlation |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8412805D0 GB8412805D0 (en) | 1984-06-27 |
GB2137752A true GB2137752A (en) | 1984-10-10 |
Family
ID=23695878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08412805A Pending GB2137752A (en) | 1982-09-29 | 1983-09-22 | Ultrasonic imaging system with cross correlation |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0120074A1 (en) |
JP (1) | JPS59501760A (en) |
DE (1) | DE3390245T1 (en) |
GB (1) | GB2137752A (en) |
IT (1) | IT1168792B (en) |
NL (1) | NL8320317A (en) |
WO (1) | WO1984001435A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4700573A (en) * | 1986-03-07 | 1987-10-20 | Hewlett-Packard Company | Method to improve accuracy in delay lines |
JP2704877B2 (en) * | 1988-03-07 | 1998-01-26 | 株式会社日立メディコ | Ultrasound diagnostic equipment |
JPH02177949A (en) * | 1988-12-28 | 1990-07-11 | Shimadzu Corp | Ultrasonic diagnostic device |
JPH0595951A (en) * | 1991-03-08 | 1993-04-20 | Fujitsu Ltd | Ultrasonic imaging device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561430A (en) * | 1967-07-20 | 1971-02-09 | William W Filler Jr | Fetal heartbeat rate instrument for monitoring fetal distress |
US3942150A (en) * | 1974-08-12 | 1976-03-02 | The United States Of America As Represented By The Secretary Of The Navy | Correction of spatial non-uniformities in sonar, radar, and holographic acoustic imaging systems |
US4317369A (en) * | 1978-09-15 | 1982-03-02 | University Of Utah | Ultrasound imaging apparatus and method |
US4397006A (en) * | 1980-12-31 | 1983-08-02 | Mobil Oil Corporation | Cross trace coherent noise filtering for seismograms |
US4395909A (en) * | 1981-02-23 | 1983-08-02 | Imaging Associates | Body imaging technique |
-
1983
- 1983-09-22 NL NL8320317A patent/NL8320317A/en unknown
- 1983-09-22 JP JP83503313A patent/JPS59501760A/en active Pending
- 1983-09-22 WO PCT/US1983/001469 patent/WO1984001435A1/en not_active Application Discontinuation
- 1983-09-22 EP EP83903279A patent/EP0120074A1/en not_active Withdrawn
- 1983-09-22 DE DE19833390245 patent/DE3390245T1/en not_active Withdrawn
- 1983-09-22 GB GB08412805A patent/GB2137752A/en active Pending
- 1983-09-29 IT IT49072/83A patent/IT1168792B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8349072A0 (en) | 1983-09-29 |
WO1984001435A1 (en) | 1984-04-12 |
IT1168792B (en) | 1987-05-20 |
GB8412805D0 (en) | 1984-06-27 |
DE3390245T1 (en) | 1984-11-29 |
EP0120074A1 (en) | 1984-10-03 |
JPS59501760A (en) | 1984-10-18 |
NL8320317A (en) | 1984-08-01 |
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