NOA: a versatile, extensible tool for AI-based organoid analysis

TL;DR

NOA is an open-source, user-friendly tool that integrates multiple AI modules for comprehensive, flexible, and accessible organoid image analysis, enabling biologists without programming skills to perform advanced tasks.

Contribution

It introduces NOA, a versatile GUI plugin for napari that unifies various AI methods for organoid analysis, addressing accessibility and task-specific limitations of existing tools.

Findings

NOA successfully quantifies morphological changes during organoid differentiation.

It assesses phototoxicity effects using AI-based image analysis.

NOA predicts organoid viability and differentiation states effectively.

Abstract

AI tools can greatly enhance the analysis of organoid microscopy images, from detection and segmentation to feature extraction and classification. However, their limited accessibility to biologists without programming experience remains a major barrier, resulting in labor-intensive and largely manual workflows. Although a few AI models for organoid analysis have been developed, most existing tools remain narrowly focused on specific tasks. In this work, we introduce the Napari Organoid Analyzer (NOA), a general purpose graphical user interface to simplify AI-based organoid analysis. NOA integrates modules for detection, segmentation, tracking, feature extraction, custom feature annotation and ML-based feature prediction. It interfaces multiple state-of-the-art algorithms and is implemented as an open-source napari plugin for maximal flexibility and extensibility. We demonstrate the versatility of NOA through three case studies, involving the quantification of morphological changes during organoid differentiation, assessment of phototoxicity effects, and prediction of organoid viability and differentiation state. Together, these examples illustrate how NOA enables comprehensive, AI-driven organoid image analysis within an accessible and extensible framework.