Recommend specifically tuned sequences to provide the best results. Processing approaches often require specific types of sequences and may Provide and, of course, how long they take to acquire.
(TR) and echo time (TE), for example, anatomical images can emphasizeĬontrast between gray and white matter (e.g., T1-weighted with short TR and short TE) or between brain tissue and cerebrospinal fluid (e.g., T2-weighted By modifying sequence parameters such as repetition time Back to topĪre available, emphasizing different aspects of normal and abnormalīrain tissue. Regions of interest to extract functional signal information. Furthermore, structural MRI provides anĪnatomical reference for visualization of activation patterns and Tissue integrity also allow one to examine the impact of tissue loss orĭamage on functional signals. Integrity of brain structure, measures that characterize the underlying Since brain function depends to some extent on the Providing indications of inflammation, edema, or demyelination,Ĭomplementing microstructural diffusion weighted MRI to provide aĬomprehensive picture of white matter integrity. Macrostructural white matter integrity canĪlso be measured using volumes of normal and abnormal white matter, Nuclei or the hippocampus, and the volume, thickness, or surface area of
The volume or shape of gray matter structures, such as subcortical Broadly speaking, MRI signal varies across tissue types because gray matter contains more cell bodies (e.g., neurons and glial cells) than white matter, which is primarily composed of long-range nerve fibers (myelinated axons), along with supporting glial cells. Structural MRI provides information to qualitativelyĪnd quantitatively describe the shape, size, and integrity of gray and Learn more about choosing the best structural sequences for your project and image processing options.What are the different types of structural sequences?.