Related Experiment Video
Updated: Jan 11, 2026
07:08
Using Optical Coherence Tomography and Optokinetic Response As Structural and Functional Visual System Readouts in Mice and Rats
Published on: January 10, 2019
10.5K
Quantitative analysis of psoriatic nail disease using optical coherence tomography
Panqiu Jiang1, Li Tan2, Yujie Mao3
1School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Scientific Reports
|November 17, 2025
Summary
Optical coherence tomography (OCT) offers a non-invasive way to detect early psoriatic nail disease changes. This imaging technique quantifies severity and monitors treatment response, proving valuable for psoriasis and psoriatic arthritis patients.
Area of Science:
- Dermatology
- Rheumatology
- Medical Imaging
Background:
- Psoriatic nail disease significantly impacts quality of life in patients with psoriasis (PsO) and psoriatic arthritis (PsA).
- Early detection and objective monitoring of nail changes are crucial for effective management.
- Current assessment methods often lack sensitivity for subtle, early-stage structural abnormalities.
Purpose of the Study:
- To assess the clinical utility of optical coherence tomography (OCT) for evaluating psoriatic nail disease.
- To determine OCT's ability to detect early structural changes, quantify lesion severity, and monitor treatment outcomes.
- To compare OCT findings with visual inspection for sensitivity in psoriatic nail disease assessment.
Main Methods:
- A swept-source OCT system was utilized to image fingernails of patients with PsO or PsA and nail involvement.
- Cross-sectional nail structures were analyzed, with grayscale values quantified to assess nail integrity.
- Paired-sample t-tests compared grayscale values before and after disease progression or treatment.
Main Results:
- OCT identified subclinical structural abnormalities like nail plate separation, thinning, depressions, and low-reflectivity regions.
- Grayscale values significantly decreased during disease progression, indicating reduced nail integrity.
- Following 4 months of treatment, grayscale values increased by 6-10 units, signifying nail structure recovery.
Conclusions:
- Optical coherence tomography is a non-invasive, high-resolution tool for early detection and quantitative monitoring of psoriatic nail disease.
- Grayscale analysis using OCT provides an objective metric for assessing disease severity and treatment response.
- OCT enhances diagnostic capabilities and clinical decision-making for PsO and PsA patients with nail involvement.
