Which MRI sequence is based on anisotropic movements?: (A) DWI, (B) SWI, (C) DTI, (D) FLAIR
Answer is C. Anisotropy- Propey of being directionally dependent, which implies different propeies in different directions, as opposed to isotropy. DTI- Diffussion tensor imaging/tractography is based on Anisotropic movements DWI - Diffusion weighted imaging is based on Brownian Movements Functional MRI - Is based On BOLD(Blood oxygenation level dependent) imaging