Handheld optical coherence tomography scanner using a common-path probing arm with long working distance

Zhou, Song; Yang, Wen; Wang, Yimin; Zhong, Chen; Yuan, Tianran

doi:10.1016/j.optcom.2021.127254

Cited by 1 publication

(1 citation statement)

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“…This flexibility opens up the possibility to image the retina of immobile/bedridden patients or infants, skin areas that are not accessible easily, ear-nose-throat measurements, or even large animals [31] and plants [32] can be imaged. In the last decade, handheld probes have proven their value in imaging the retina [33][34][35][36][37][38][39][40][41][42][43][44][45][46], hair follicles [47] and the tympanic membrane in the ear [30,48,49], to detect and monitor skin cancer [50,51] or skin and mucosal lesions [52][53][54][55][56][57][58], and as an imaging tool to assist in surgery [59,60].…”

Section: Oct Using Handheld Probes and Home/self-octmentioning

confidence: 99%

Miniaturizing optical coherence tomography

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Schmoll

et al. 2022

Transl Biophotonics

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Optical coherence tomography (OCT) has revolutionized ophthalmic diagnosis as a non-invasive, cross-sectional imaging technique in the last 30 years and hence is one of the fastest adopted advanced imaging technologies in the history of medicine. A miniaturization of OCT devices would not only reduce size but ideally also reduce costs and therefore create potential new markets. OCT systems based on photonic integrated circuits (PIC) could enable a significant miniaturization of complex systems with high degree of integration as well as low costs of goods. These therefore have a potential to enable portable, cost-effective, high performing, real handheld OCT devices. This review identifies three main categories towards miniaturized OCT devices: Handheld imaging probes interfaced to a (mobile) base station, compact home/self-OCT and PICbased OCT. Imaging performance parameters and technical readiness levels of the identified miniaturized OCT systems for (non-) ophthalmic applications are presented. Special attention is paid to PIC-based OCT applications and their progress.Picture: First in vivo human retinal tomogram using a PIC-based subcomponent (arrayed waveguide grating, AWG) of a spectral domain OCT system.

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