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OCTA [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2026-03-23

English

Subject field(s)
  • Tomography
  • Diagnostic Procedures (Medicine)
  • Vessels (Medicine)
  • The Eye
CONT

Since its invention in the early 1990s, optical coherence tomography (OCT) has become one of the most important imaging modalities in ophthalmology. OCT is a noninvasive imaging technology based on low-coherence interferometry. It generates high-resolution, cross-sectional images from backscattered light, enabling clinicians to assess structural changes in different retinal diseases. ... OCT angiography (OCTA) is a more recent development. It has the capability of producing high-resolution, 3D [three-dimensional] angiograms of the retinal and choroidal vascular networks. OCTA detects the motion of blood using intrinsic signals to capture the location of blood vessels.

OBS

OCTA [offers] in vivo visualization of the retinal microvasculature in a depth-resolved fashion, without the need for time-consuming dye administration.

French

Domaine(s)
  • Tomographie
  • Méthodes diagnostiques (Médecine)
  • Vaisseaux (Médecine)
  • Oeil
CONT

L'angiographie par tomographie par cohérence optique (OCTA) permet de visualiser une reconstitution de la circulation rétinienne et choroïdienne. Elle résulte de l'amélioration de la tomographie par cohérence optique (OCT) grâce à l'utilisation des techniques «spectral-domain» et «swept source» qui permettent d'évaluer l'anatomie de la rétine avec une précision accrue et des progrès des logiciels d'analyse de l'image qui permettent désormais de reconstituer la rétine en trois dimensions ainsi que la circulation rétinienne et choroïdienne. [...] Contrairement à l'AF [angiographie à la fluorescéine], l'OCTA est un examen non invasif. Grâce à l'utilisation de l'OCTA, il devient possible de réaliser une imagerie multimodale non invasive qui permet de porter un diagnostic, suivre une pathologie rétinienne et définir une stratégie thérapeutique.

OBS

OCTA; OCT-A : abréviations empruntées à l'anglais; elles correspondent à la désignation «optical coherence tomography angiography».

Spanish

Save record 1

Record 2 2022-12-07

English

Subject field(s)
  • Metrology and Units of Measure
  • Atmospheric Physics
DEF

A fraction equal to one eighth of the celestial dome, used in the coding of cloud amount.

French

Domaine(s)
  • Unités de mesure et métrologie
  • Physique de l'atmosphère
DEF

Fraction égale à un huitième de la voûte céleste, utilisée dans le chiffrement de la nébulosité.

Spanish

Campo(s) temático(s)
  • Metrología y unidades de medida
  • Física de la atmósfera
DEF

Octava parte de la bóveda celeste, usada en el cifrado de la nubosidad.

Save record 2

Record 3 2011-10-07

English

Subject field(s)
  • Non-Gov. Provincial Bodies and Committees (Canadian)

French

Domaine(s)
  • Organismes et comités provinciaux non gouv. canadiens
OBS

Renseignement confirmé par l'organisme.

Spanish

Save record 3

Record 4 2006-10-26

English

Subject field(s)
  • Non-Gov. Provincial Bodies and Committees (Canadian)
  • Transportation
OBS

The Ontario Community Transportation Association (OCTA) is the only association in Ontario that represents a broad range of public transportation interests. We are the primary provincial forum for transportation, representing the views of our membership to governments and other agencies and contributing to regulatory, policy issues and programs prior to their implementation.

French

Domaine(s)
  • Organismes et comités provinciaux non gouv. canadiens
  • Transports

Spanish

Save record 4

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