This book constitutes the refereed joint proceedings of the 4th International Workshop on Deep
Learning in Medical Image Analysis DLMIA 2018 and the 8th International Workshop on
Multimodal Learning for Clinical Decision Support ML-CDS 2018 held in conjunction with the
21st International Conference on Medical Imaging and Computer-Assisted Intervention MICCAI
2018 in Granada Spain in September 2018. The 39 full papers presented at DLMIA 2018 and the
4 full papers presented at ML-CDS 2018 were carefully reviewed and selected from 85 submissions
to DLMIA and 6 submissions to ML-CDS. The DLMIA papers focus on the design and use of deep
learning methods in medical imaging. The ML-CDS papers discuss new techniques of multimodal
mining retrieval and their use in clinical decision support.