View abstract

Cet abstract a été assigné à session AOB Free papers
TitreThe importance of retrobulbar blood vessels in the peripapillary superficial blood flow. The Leuven Eye Study.
Abstract Nr.2075
ButTo understand which retrobulbar blood vessels measured with colour Doppler imaging (CDI) are best associated with the peripapillary superficial perfusion and vessel density measured by optical coherence tomography angiography (angio-OCT).
MéthodesOne hundred and five patients from the Leuven Eye Study (36 healthy, 69 glaucoma patients) were evaluated both with CDI (Antares Sonoline®, Siemens®), as well as with angio-OCT of the optic disc (Angioplex®, Cirrus®, Zeiss®). While the angio-OCT is able to detect the erythrocyte flow (perfusion) as well as the amount of microvasculature on the superficial layers of the retina (vessel density), the CDI measures the retrobulbar vascular hemodynamics.
Age, disease severity (measured through mean retinal nerve fiber layer thickness, OCT Cirrus®), scan quality and diagnosis of glaucoma were used as covariates in linear regression models for vessel density and perfusion, since they are known to influence the peripapillary vasculature.
RésultatsThe significant CDI parameters were identical for both models and included the peak systolic velocity (PSV), end diastolic velocity (EDV) and resistive index (RI) of the central retinal vein, and the RI and mean velocity of the systolic wave of the central retinal artery. The adjusted R2 ranged from 0.698 to 0.708.
ConclusionThe blood flow patterns of the central retinal vessels are important in predicting superficial peripapillary vessel density and perfusion as measured on angio-OCT, when correcting for age, disease severity, scan quality and diagnosis of glaucoma. Which OBF measuring device can more accurately detect disease conditions remains to be determined.
Conflit d'intérêtNon
Auteur 1
NomBARBOSA BREDA
InitialesJ
InstitutUZ Leuven
VilleLeuven
Auteur 2
NomVAN KEER
InitialesK
InstitutUZ Leuven
VilleLeuven
Auteur 3
NomABEGAO PINTO
InitialesL
InstitutCHLN
VilleLisboa
Auteur 4
NomVANDEWALLE
InitialesE
InstitutUZ Leuven
VilleLeuven
Auteur 5
NomROCHA SOUSA
InitialesA
InstitutCHSJ
VillePorto
Auteur 6
NomSTALMANS
InitialesI
InstitutUZ Leuven
VilleLeuven
top ^