Noninvasive vascular imaging of ruptured retinal arterial macroaneurysms by Doppler optical coherence tomography.

Masahiro Miura,Ayako Itami,Takuya Iwasaki,Hiroshi Goto,Yoshiaki Yasuno,Daisuke Muramatsu,Young-Joo Hong

doi:10.1186/s12886-015-0077-0

Abstract

BackgroundTo describe Doppler optical coherence tomography (OCT) imaging of ruptured retinal arterial macroaneurysms (RAMs).MethodsFour eyes of four patients with ruptured RAMs were prospectively studied. Vascular imaging was obtained using swept-source Doppler OCT, and compared with indocyanine green angiography images.ResultsEn face projection of Doppler OCT images clearly showed RAMs at the corresponding locations of lesions in the indocyanine green angiography images. In Doppler OCT images, RAMs were located in the inner retina in three eyes and in the medium layer of the retina in one eye. In one eye, detection of RAMs by standard OCT was difficult because of the presence of inner retinal hemorrhage. In one eye, disappearance of blood flow after direct laser photocoagulation could be confirmed by Doppler OCT images.ConclusionsDoppler OCT imaging may potentially function as a noninvasive complementary procedure with indocyanine green angiography.

Highlights

To describe Doppler optical coherence tomography (OCT) imaging of ruptured retinal arterial macroaneurysms (RAMs)
All eyes showed retinal hemorrhage around RAMs and three of four eyes were accompanied by vitreous hemorrhage
Topographical locations of RAMs were readily determined by Doppler OCT B-scan images

Summary

Introduction

To describe Doppler optical coherence tomography (OCT) imaging of ruptured retinal arterial macroaneurysms (RAMs). The clinical applications of ICGA and FA have been limited because of patient discomfort and Recently, a functional extension of OCT technology for three dimensional (3-D) vascular imaging was developed. This technique was first reported using Doppler OCT and was named optical coherence angiography [7]. Following this development, various 3-D vascular imaging techniques were reported, and were collectively called OCT angiography [8]. The clinical utilities of OCT angiography have been reported for polypoidal choroidal vasculopathy [9,10,11,12], choroidal neovascularization, [11,12,13] macular telangiectasia, [14] and diabetic

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