Rok Podlipec (Author), Jaka Mur (Author), Jaka Petelin (Author), Janez Štrancar (Author), Rok Petkovšek (Author)

Abstract

Tissue diseases and related disorders need to be first recognized using diagnostic methods and then later treated by therapeutic methods–a joint procedure called theranostics. One of the main challenges in the field of retinal therapies remains in the success of the treatment, typically improving the local metabolism, by sparing the surrounding tissue and with the immediate information of the laser effect. In our study, we present a concept for real-time controlled tissue theranostics on a proof-of-concept study capable of using a single tunable ps laser source (in terms of irradiance, fluence, and repetition rate), done on ex-vivo human retinal pigment epithelium. We have found autofluorescence intensity and lifetime imaging diagnostics very promising for the recognition and quantification of laser effects ranging from selective non-destructive molecular tissue modification to complete tissue ablation. The main novelty of our work presents the developed algorithm for optimized theranostics based on the model function used to quantify laser-induced tissue changes through the diagnostics descriptors, fluorescence lifetime and fluorescence intensity parameters. This approach, together with the operation of the single adaptable laser source, can serve as a new theranostics method in personalized medicine in the future not only limited to treat retinal diseases.

Keywords

adaptable fiber lasers;retinal tissue;theranostics;multimodal imaging;fluorescence lifetime imaging;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 535
COBISS: 75069699 Link will open in a new window
ISSN: 2156-7085
Views: 397
Downloads: 117
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Other data

Secondary language: Slovenian
Secondary keywords: prilagodljivi vlakenski laserji;tkivo mrežnice;teranostika;multimodalno slikanje;življenjski čas fluorescence;
Type (COBISS): Article
Pages: str. 5881-5893
Volume: ǂVol. ǂ12
Issue: ǂno. ǂ9
Chronology: 2021
DOI: 10.1364/BOE.428467
ID: 13324759