The Basics of MRI: T1 vs. T2
The Basics of MRI: T1 vs. T2
The Basics of MRI: T1 vs. T2
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Frank Minja, HMS III<br />
Gillian Lieberman, MD<br />
From Voxels to Spinning Protons<br />
• A Voxel is a small volume element = approx 3 mm 3<br />
• A Voxel<br />
• A proton is a single positive charge in the nucleus <strong>of</strong> an atom<br />
• A cloud <strong>of</strong> positive charge<br />
• Protons are constantly spinning about their axes<br />
• A spinning charge results in a magnetic moment<br />
• Thus, spinning protons can be thought <strong>of</strong> as tiny magnetic moments<br />
• A tiny magnetic moment<br />
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