# Multifractal Analysis of Choroidal SDOCT Images in the Detection of Retinitis Pigmentosa

## TL;DR

This paper explores using multifractal analysis on choroidal images to detect retinitis pigmentosa early.

## Contribution

The novelty is applying multifractal analysis to choroidal SDOCT images for early RP diagnosis.

## Key findings

- Multifractal dimensions increase in RP patients compared to controls.
- Choroidal branching patterns show inhomogeneity measurable via Renyi dimensions.

## Abstract

The aim of this paper is to investigate whether a multifractal analysis can be applied to study choroidal blood vessels and help ophthalmologists in the early diagnosis of retinitis pigmentosa (RP). In a case study, we used spectral domain optical coherence tomography (SDOCT), which is a noninvasive and highly sensitive imaging technique of the retina and choroid. The image of a choroidal branching pattern can be regarded as a multifractal. Therefore, we calculated the generalized Renyi point-centered dimensions, which are considered a measure of the inhomogeneity of data, to prove that it increases in patients with RP as compared to those in the control group.