Tiny lesions of multiple sclerosis on brain and spinal tissue can be observed by

Options

A. Magnetic resonance imaging
B. Positron emisson tomography
C. X-ray readiography
D. Digital subtraction angiography

Answer

To answer the question regarding how tiny lesions of multiple sclerosis on brain and spinal tissue can be observed, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Multiple Sclerosis**: Multiple sclerosis (MS) is a disease that affects the central nervous system, leading to the formation of lesions in the brain and spinal cord. These lesions are caused by the immune system attacking the protective covering of nerve fibers, known as myelin.

2. **Identifying Imaging Techniques**: To observe these lesions, various imaging techniques can be used. The most common methods include MRI (Magnetic Resonance Imaging), CT (Computed Tomography), and others.

3. **Focusing on MRI**: Among these techniques, MRI is particularly effective for visualizing soft tissues, including the brain and spinal cord. It uses strong magnetic fields and radio waves to create detailed images of the organs and tissues inside the body.

4. **How MRI Works**: When an MRI scan is performed, the machine generates images that can show the presence of lesions. The high-resolution images produced by MRI can reveal abnormalities in the brain and spinal cord, including those associated with multiple sclerosis.

5. **Conclusion**: Based on the above understanding, the correct answer to the question is that tiny lesions of multiple sclerosis on brain and spinal tissue can be observed by **Magnetic Resonance Imaging (MRI)**.