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Abstract #1627

Diffusive diffraction measured with MRI at 7T

Gedat E, Mller S, Tolxdorff T, Braun J
Institut fr Medizinische Informatik

Observability of diffusive diffraction with volume selective MRI was demonstrated. A bundle of 55 water-filled glass capillaries with 100 m inner diameter was placed in a 7T Bruker BioSpec. The stimulated echo amplitude in a volume selective STEAM sequence was evaluated with respect to the diffusion weighting gradients. Diffusion weighting was applied parallel and perpendicular to the capillaries axes. In perpendicular direction two diffraction minima are clearly visible, while in parallel direction ordinary echo attenuation was observed. Thus, we conclude that diffusive diffraction is observable with MRI and may be applied to biological systems.