Branco, G2014-01-292014-01-292000Neuroradiology. 2000;42(2):96-8.http://hdl.handle.net/10400.26/5470I formulated an alternative explanation for the origin of the signal in diffusion-weighted MRI (DWI) and tested it in a simple experimental model using gelatin. My findings indicate that the signal in DWI is influenced by the passage of water from the sol to the gel state, independently of the presence of cell structures or membrane-dependent diffusion.engImage Processing, Computer-AssistedMagnetic Resonance ImagingGelatinProcessamento de Imagem Assistida por ComputadorRessonância MagnéticaGelatinajournal article