Structural magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) studies in anorexia nervosa. Graph depicts the increasing number of structural MRI and DTI studies in anorexia nervosa samples (n > 2 patients) published since the first known study in 1990 until July 2017 as identified with systematic PubMed and Scopus searches using the following terms: anorexia nervosa, eating disorders, MRI, magnetic resonance imaging, neuroimaging, DTI, diffusion tensor imaging, diffusion-weighted imaging. References for all studies counted in the graph are presented in the Supplement.