On the Effects of Dephasing Due to Local Gradients in DTI Experiments: Relevance for DTI Fiber Phantoms

Frederik Bernd Laun¹, Sandra Huff¹, Bram Stieltjes

Former versions of DTI phantoms could not be oriented arbitrarily towards B0 due to susceptibility induced local gradients. We countered this limitation by matching susceptibilities of restricting structure and fluid. This is achieved by solving sodium chloride. Thus, T2 becomes independent of orientation and diffusion measurements become reliable.