Protocol for quality control screening of brain organoid morphology.

Neural organoids can exhibit variability in both tissue shape and tissue identity. Here, we present a pipeline for rapid, protocol-agnostic quality control screening of brain organoids based on their overall gross morphology. We describe a semi-automated image analysis of organoid size, shape, and texture from 2D bright-field imaging. We provide a reference dataset of brain organoids with complex morphology. We show how to integrate input and reference organoids and perform the unbiased sample selection by k-means clustering. For complete details on the use and execution of this protocol, please refer to Chiaradia et al.1.