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1. WO2015120017 - OPTICAL COHERENCE TOMOGRAPHY (OCT) SYSTEM WITH IMPROVED MOTION CONTRAST

Publication Number WO/2015/120017
Publication Date 13.08.2015
International Application No. PCT/US2015/014410
International Filing Date 04.02.2015
IPC
A61B 3/10 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
CPC
A61B 3/0025
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
0016Operational features thereof
0025characterised by electronic signal processing, e.g. eye models
A61B 3/0041
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
0016Operational features thereof
0041characterised by display arrangements
A61B 3/102
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
102for optical coherence tomography [OCT]
A61B 3/1233
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
12for looking at the eye fundus, e.g. ophthalmoscopes
1225using coherent radiation
1233for measuring blood flow, e.g. at the retina
A61B 5/7203
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
72Signal processing specially adapted for physiological signals or for diagnostic purposes
7203for noise prevention, reduction or removal
G01B 2290/65
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
2290Aspects of interferometers not specifically covered by any group under G01B9/02
65Spatial scanning object beam
Applicants
  • UNIVERSITY OF SOUTHERN CALIFORNIA [US]/[US]
  • CALIFORNIA INSTITUTE OF TECHNOLOGY [US]/[US]
Inventors
  • FINGLER, Jeffrey, P.
  • FRASER, Scott, E.
Agents
  • BROWN, Marc, E.
Priority Data
61/935,42804.02.2014US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL COHERENCE TOMOGRAPHY (OCT) SYSTEM WITH IMPROVED MOTION CONTRAST
(FR) SYSTÈME DE TOMOGRAPHIE EN COHÉRENCE OPTIQUE (OCT) AYANT UN CONTRASTE DE MOUVEMENT AMÉLIORÉ
Abstract
(EN)
This disclosure relates to the field of Optical Coherence Tomography (OCT). This disclosure particularly relates to an OCT system with improved motion contrast. This disclosure particularly relates to motion contrast methods for such OCT systems. The OCT system of this disclosure may have a configuration that scans a physical object, which has a surface and a depth, with a beam of light that has a beam width and a direction; acquires OCT signals from the scan; forms at least one A-scan using the acquired OCT signals; forms at least one B-scan cluster set using the acquired OCT signals that includes at least two B-scan clusters that each include at least two B-scans.
(FR)
L'invention concerne le domaine de la tomographie en cohérence optique (OCT). L'invention concerne en particulier un système OCT ayant un contraste de mouvement amélioré. L'invention concerne en particulier des procédés de contraste de mouvement pour de tels systèmes OCT. Le système OCT de l'invention peut avoir une configuration qui balaie un objet physique, qui a une surface et une profondeur, avec un faisceau de lumière qui a une largeur de faisceau et une direction; acquiert des signaux OCT provenant du balayage; forme au moins un balayage A à l'aide des signaux OCT acquis; forme au moins un ensemble de groupes de balayages B à l'aide des signaux OCT acquis, qui comprend au moins deux ensembles de balayages B qui comprennent chacun au moins deux balayages B.
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