This book constitutes the refereed proceedings of the 21st Annual Conference on Medical Image
Understanding and Analysis MIUA 2017 held in Edinburgh UK in July 2017. The 82 revised full
papers presented were carefully reviewed and selected from 105 submissions. The papers are
organized in topical sections on retinal imaging ultrasound imaging cardiovascular imaging
oncology imaging mammography image analysis image enhancement and alignment modeling and
segmentation of preclinical body and histological imaging feature detection and
classification. The chapters 'Model-Based Correction of Segmentation Errors in Digitised
Histological Images' and 'Unsupervised Superpixel-Based Segmentation of Histopathological
Images with Consensus Clustering' are open access under a CC BY 4.0 license.