Pub Date : 2025-01-01DOI: 10.1016/j.bbe.2025.01.001
Marta Mikuła-Zdańkowska , Dawid Borycki , Piotr Węgrzyn , Karolis Adomavičius , Egidijus Auksorius , Maciej Wojtkowski
We demonstrate an experimental Spatio-Temporal Optical Coherence Tomography (STOC-T) system featuring optimized illumination and an increased lateral resolution of approximately 3 µm. The integration of high-speed phase randomization with a numerical averaging process facilitates a noticeable improvement in the signal-to-noise ratio. The effectiveness of this enhancement is demonstrated through volumetric imaging of a scattering object, and it enables in vivo imaging of the human retina at the cellular level. Additionally, the experiment is supported by computational aberration-correction techniques to achieve high-resolution in vivo imaging of the human retina. The visualization of retinal cone mosaics, and ganglion cell somas was achieved through contrast enhancement during the averaging process.
{"title":"Imaging of retinal ganglion cells and photoreceptors using Spatio-Temporal Optical Coherence Tomography (STOC-T) without hardware-based adaptive optics","authors":"Marta Mikuła-Zdańkowska , Dawid Borycki , Piotr Węgrzyn , Karolis Adomavičius , Egidijus Auksorius , Maciej Wojtkowski","doi":"10.1016/j.bbe.2025.01.001","DOIUrl":"10.1016/j.bbe.2025.01.001","url":null,"abstract":"<div><div>We demonstrate an experimental Spatio-Temporal Optical Coherence Tomography (STOC-T) system featuring optimized illumination and an increased lateral resolution of approximately 3 <!--> <!-->µm. The integration of high-speed phase randomization with a numerical averaging process facilitates a noticeable improvement in the signal-to-noise ratio. The effectiveness of this enhancement is demonstrated through volumetric imaging of a scattering object, and it enables <em>in vivo</em> imaging of the human retina at the cellular level. Additionally, the experiment is supported by computational aberration-correction techniques to achieve high-resolution <em>in vivo</em> imaging of the human retina. The visualization of retinal cone mosaics, and ganglion cell somas was achieved through contrast enhancement during the averaging process.</div></div>","PeriodicalId":55381,"journal":{"name":"Biocybernetics and Biomedical Engineering","volume":"45 1","pages":"Pages 52-61"},"PeriodicalIF":5.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}