Basics of Neuroradiology in Multiple Sclerosis
Basics of Neuroradiology in Multiple Sclerosis
This lecture serves as a fundamental introduction to neuroradiology for researchers working in neuroinflammation. It bridges the gap between gross anatomy and magnetic resonance imaging (MRI), providing a "basics of the basics" guide to how the central nervous system (CNS) is visualized in clinical practice. The session focuses on orienting non-medical specialists (such as engineers and physicists) to the anatomical landmarks and standard imaging sequences used to identify and monitor Multiple Sclerosis (MS).
Learning Objectives:
At the end of this lecture, students will be able to:
- Identify key anatomical landmarks of the brain and spinal cord in different MRI planes (sagittal, axial, and coronal).
- Explain the "inside-out" tissue organization switch, where gray matter is peripheral in the brain but central in the spinal cord.
- Describe the primary MRI sequences (T2 FLAIR, T2 TSE, and DWI) and their specific roles in detecting MS lesions.
- Evaluate the clinical utility and limitations of contrast agents (Gadolinium) in assessing blood-brain barrier disruption.
- Recognize the anatomical vulnerable points in MS, including the optic nerve ("the appendix of the brain") and the spinal cord segments.
Topics covered in this lesson
- Overview of lobes, the tentorium (supratentorial vs. infratentorial), and the termination of the spinal cord at L1.
- Understanding Sagittal, Axial, and Coronal views in a clinical context.
- The "bread and butter" role of T2 FLAIR and the use of Diffusion Weighted Imaging (DWI) for cytotoxic edema.
- Introduction to susceptibility-weighted imaging (SWI) for the Central Vein Sign.
- Discussion on scan time constraints, 5mm slice thickness limitations, and the risks of gadolinium deposition.
- Specific challenges in detecting spinal lesions and the use of STIR/Proton Density sequences.
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