Integrating photoacoustic ophthalmoscopy with scanning laser ophthalmoscopy, optical coherence tomography, and fluorescein angiography for a multimodal retinal imaging platform.
Photoacoustic ophthalmoscopy (PAOM) is a newly developed retinal imaging technology that holds promise for both fundamental investigation and clinical diagnosis of several blinding diseases. Hence, integrating PAOM with other existing ophthalmic imaging modalities is important to identify and verify the strengths of PAOM compared with the established technologies and to provide the foundation for more comprehensive multimodal imaging. To this end, we developed a retinal imaging platform integrating PAOM with scanning laser ophthalmoscopy (SLO), spectral-domain optical coherence tomography (SD-OCT), and fluorescein angiography (FA). In the system, all the imaging modalities shared the same optical scanning and delivery mechanisms, which enabled registered retinal imaging from all the modalities. High-resolution PAOM, SD-OCT, SLO, and FA images were acquired in both albino and pigmented rat eyes. The reported in vivo results demonstrate the capability of the integrated system to provide comprehensive anatomic imaging based on multiple optical contrasts.
Northwestern University, Department of Biomedical Engineering, Evanston, Illinois 60208, USA.
Wei
W
Song
Qing
Q
Wei
Tan
T
Liu
David
D
Kuai
Janice M
JM
Burke
Shuliang
S
Jiao
Hao F
HF
Zhang
D000162:Acoustics; D000818:Animals; D003287:Contrast Media / Q000494:pharmacology; D003952:Diagnostic Imaging / Q000379:methods; D005451:Fluorescein Angiography / Q000379:methods*; D007834:Lasers; D008543:Melanins / Q000378:metabolism; D033401:Microscopy, Acoustic / Q000379:methods*; D009887:Ophthalmoscopy / Q000379:methods*; D055095:Optics and Photonics; D061088:Photoacoustic Techniques / Q000379:methods*; D017785:Photons; D010858:Pigmentation; D051381:Rats; D012160:Retina / Q000473:pathology* / Q000502:physiology; D012171:Retinal Vessels / Q000473:pathology; D012542:Scattering, Radiation; D041623:Tomography, Optical Coherence / Q000379:methods*
D003287:Contrast Media; D008543:Melanins