Diagnosis and therapeutic orientation
L’angiographie rétinienne est un examen dynamique de diagnostic permettant de visualiser le système vasculaire de la rétine et de détecter des anomalies qui ne sont pas toujours visibles avec d’autres méthodes d’imagerie du fond d’œil.
Performed using a fluorescent contrast product (colour) injected into the patient’s blood circulation, it is therefore seen as invasive and requires a convenient equipment to perform the injection and the resuscitation in case of allergic reaction.
L’angiographie trouve son utilité pour le diagnostic et le suivi de pathologies vasculaires telles que la rétinopathie diabétique, la AMD, les uvéites postérieures…
Depending on the depth of the tissue to examine and on the pathology, two different contrast products can be used. So they define two types of angiography, the fluorescein one (FA) and the indocyanine green one (ICG).
Current angiographs, often equippedwith a confocal SLO laser system.The current angiographs, often equipped with an SLO confocal system, able to precisely focus on retina, make possible performing the fluorescein angiography only, the indocyanine green angiography only or sometimes both angiographies at the same time.
Our angiography solutions
Mirante is a large-field multimodal-imaging platform designed to perform fundus imaging. It combines OCT and SLO technologies thus grouping routine imaging to detect and identify retinal-choroidal pathologies.
Mirante is a large-field multimodal-imaging platform designed to perform fundus imaging. It combines OCT and SLO technologies thus grouping routine imaging to detect and identify retinal-choroidal pathologies. Using an additional lens, performing an analysis of sections of the anterior segment is also possible.
Techniques used
The injection angiography is the only examination making possible viewing fundus vascularisation in a dynamic way. It is then possible to analyse early, intermediate and late phases of retinal and choroidal blood circulations.
Angiography is often performed using an SLO angiograph, as this equipment can make a precise focus on retina. The purpose is detecting vascularisation anomalies, such as:
- Aneurysms
- Leaks
- Oedemas
- Ischemia
- AMD
- Diabetic retinopathy
- Vascular occlusions and tumours, etc.
The examination is performed using a contrast product injected into the patient’s blood circulation.
During the examination, the angiograph illuminates the fundus with a specific wavelength to stimulate the colour to make it visible. Angiography images then only show the colour circulation into the vascular system, thus matching the blood behaviour into the vessels.
We use angiography to make a precise diagnosis, to propose an adapted treatment and to follow-up the evolution of the patient’s pathology through a control. When a complete analysis of the structure/function of the retina is required, the angiography is always used in addition to the OCT.
This imaging technique is different from the OCT-Angiography, which is non invasive, as it derives from the OCT (scanner of the retina). This last technique remains static and for the moment its acquisition field is limited.
Pathologies that can be detected using an angiograph
Image courtesy: Dr Djaborouti (Puilboreau, France), hospital Luigi Sacco (University of Milan, Italy), hospital Lariboisière (Paris, France).
The different types of angiography
Benefits of angiography
The angiography is the only technique realising a dynamic observation of fundus vascularisation. Depending on the lens used, the analysis zone can be extended to make possible detecting some early vascular anomalies.
- Dynamic analysis
Dynamic analysis of retinal and choroidal vascularisation
- Extended acquisition
Visualisation du fond d’œil jusqu’à l’extrême périphérie grâce au grand champ
- Assistance to diagnosis
The vascular analysis completes the structural analysis performed using fundus photography and the OCT to confirm and refine the diagnosis.
Do you want to purchase an angiograph?
You have a project? You want a quotation? You have questions about our products? Feel free to ask your technical sales representative.
The Art of Eye Care
Reliability and
safety
NIDEK develops its top-of-the-range products to improve visual health through an approach based on strict criteria: safety, reliability, durability, continuous quality controls and certifications.
Technologies and
innovations
NIDEK meets technical challenges by keeping constantly informed of the innovations of eye imaging systems, using the expertise of professionals and the progresses of research.
Services and
guarantees
NIDEK commits itself to providing services to its customers, from the installation of an activity to the authorised training of teams, and to offering long-time measurable guarantees.
L'actualité NIDEK
RT-Connect Le nouveau logiciel NIDEK pour le pilotage à distance de l’examen de réfraction subjective
En France, NIDEK SA est le partenaire des ophtalmologistes depuis 1988, et propose des solutions
Fermeture exceptionnelle du mois d’avril
Nous vous annonçons une fermeture exceptionnelle de nos locaux ce vendredi 15 et lundi 18
Intervention NIDEK SA à l’ESCY
En mars 2022, NIDEK s’est rendu à l’école ESCY d’Yssingeaux pour rencontrer les professionnels de
Nouveautés NIDEK : Tables à élévation Up
NIDEK propose une gamme complète de tables électriques élégantes et fonctionnelles. Conçues et fabriquées à
Congrès COC / AOF
Le congrès COC / AOF, initialement prévu en janvier, aura lieu au Beffroi de Montrouge,
Congrès JPO
La 5ème édition des journées perpignanaises d’ophtalmologie 20 & 21 mai 2022 à la Villa
La SFO a démarré
Nous y sommes ! La SFO a démarré 🚀 Nous sommes impatients de tous vous
Congrès SAFIR
La Société de l’Association Française des Implants intra-oculaires et de Chirurgie Réfractive (SAFIR) se tiendra