title: Diffusion MR imaging: an important tool in the assessment of brain tumors.
abstract: For over 20 years, conventional MR imaging has been used for assessing brain tumors. However, conventional MR imaging tends to underestimate the extent of the tumor, perhaps leading to suboptimal treatment. New MR imaging tools have been widely used to determine the grade, heterogeneity, and extent of brain tumors. Diffusion-weighted imaging has been studied extensively, helping in tumor grading, differential diagnosis, and postoperative evaluation. Diffusion tensor imaging can apparently delineate more accurately the tumor versus the infiltrating tumor between the peritumoral edema and the normal brain parenchyma. This article shows the main clinical applications of these sequences.
authors.affiliation: Clinics CDPI and Multi-Imagem, Rua Saddock de Sá 266, Rio de Janeiro, Brazil. celsohygino@hotmail.com
authors.forename: L Celso
authors.initials: LC
authors.lastname: Hygino da Cruz
authors.forename: Isabela Garcia
authors.initials: IG
authors.lastname: Vieira
authors.forename: Romeu C
authors.initials: RC
authors.lastname: Domingues
mesh_terms: D001921:Brain / Q000473:pathology*; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000473:pathology*; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods; D056324:Diffusion Tensor Imaging / Q000379:methods; D006801:Humans