The three editors are cardiothoracic radiologists with international recognition having all a large numbers of papers and books publications. Benoît Ghaye is working at the Cliniques Universitaires St-Luc in Brussels, Catherine Beigelman at the Centre Hospitalier Universitaire Vaudois in Lausanne and Rodrigo Salgado at UZA in Antwerpen and Holy Heart Hospital Lier. Acting as mentors in their respective universities, they had the idea of this book based on the repetitive requests from their students, residents, fellows and staff colleagues for the need of a comprehensive book on how to measure in cardiothoracic radiology.