The Common Vein

Technique Method

The Common Vein Copyright 2010

Introduction

1. Spin density MRI : A magnetic resonance image where the contrast is predominantly dependent on spin density.

2. Diffusion MRI : uses water as contrast .

3. Magnetization Transfer MRI: refers to the transfer of longitudinal magnetization from the hydrogen nuclei of water that have restricted motion ( macromolecules ? protein /lipids) to the hydrogen nuclei of water that moves (cytosol) with many degrees of freedom.

4. Fluid attenuated inversion recovery (FLAIR) ? Is an inversion recovery protocol with long TI to remove the effects of fluid from the resulting images.

5. Functional MRI ? based on changes in blood flow secondary to neural activity

6. Real-time MRI ? quick

7. Magnetic resonance angiography- useful to visualize the vasculature using gadolinum contrast .

8. Magnetic resonance gated intracranial CSF dynamics (MR-GILD) – analyze CSF circulatory system dynamics Magnetic resonance spectroscopy