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1. (WO2008016992) PULSE INVERSION SEQUENCES FOR NONLINEAR IMAGING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2008/016992 International Application No.: PCT/US2007/074996
Publication Date: 07.02.2008 International Filing Date: 01.08.2007
IPC:
A61B 8/12 (2006.01) ,G01S 15/89 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
8
Diagnosis using ultrasonic, sonic or infrasonic waves
12
in body cavities or body tracts, e.g. by using catheters
G PHYSICS
01
MEASURING; TESTING
S
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
15
Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
88
Sonar systems, specially adapted for specific applications
89
for mapping or imaging
Applicants:
SCIMED LIFE SYSTEMS, INC. [US/US]; One Scimed Place Maple Grove, MN 55311-1566, US (AllExceptUS)
FRIJLINK, Martijn, E. [NL/NL]; NL (UsOnly)
GOERTZ, David, E. [CA/NL]; NL (UsOnly)
VAN DER STEEN, Antonius, F., W. [NL/NL]; NL (UsOnly)
Inventors:
FRIJLINK, Martijn, E.; NL
GOERTZ, David, E.; NL
VAN DER STEEN, Antonius, F., W.; NL
Agent:
ORRICK HERRINGTON & SUTCLIFFE LLP ; 4 Park Plaza, Suite 1600 Irvine, CA 92614-2558, US
Priority Data:
60/821,10601.08.2006US
60/824,86207.09.2006US
Title (EN) PULSE INVERSION SEQUENCES FOR NONLINEAR IMAGING
(FR) SÉQUENCES D'INVERSION D'IMPULSION POUR IMAGERIE NON LINÉAIRE
Abstract:
(EN) Provided herein are Pulse-Inversion (PI) sequences that provide for fundamental frequency suppression in nonlinear imaging applications. In an embodiment, a weighting scheme is applied to the received echo pulses resulting from transmit pulses of alternating polarity to reduce the effect of transducer motion. In an embodiment, a three-pulse weighting scheme is applied to a PI sequence. In other embodiments, different combinations of the three-pulse weighting scheme are applied to a PI sequence.
(FR) L'invention concerne des séquences d'inversion d'impulsion (PI) qui fournissent une suppression de fréquence fondamentale dans des applications d'imagerie non linéaires. Dans un mode de réalisation, un schéma de pondération est appliqué aux impulsions d'écho reçues résultant d'impulsions de transmission ou d'une polarité qui varie pour réduire l'effet d'un déplacement de transducteur. Dans un mode de réalisation, un schéma de pondération à trois impulsions est appliqué à une séquence PI. Dans d'autres modes de réalisation, différentes combinaisons du schéma de pondération à trois impulsions sont appliquées à une séquence PI.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2076179JP2009545406CA2659645