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Magnetic Resonance Imaging

Magnetic Resonance Imaging. Sarah Ezzell Engr. 302. History. NMR - 1930s Dr. Damadian “Tumor Detection by Nuclear Magnetic Resonance” - 1971 “Apparatus and Method for Detecting Cancer in Tissue” - 1974 Indomitable - 1977. Basics. Magnetic field accompanied by radio-wave pulses

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Magnetic Resonance Imaging

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  1. Magnetic Resonance Imaging Sarah Ezzell Engr. 302

  2. History • NMR - 1930s • Dr. Damadian • “Tumor Detection by Nuclear Magnetic Resonance” - 1971 • “Apparatus and Method for Detecting Cancer in Tissue” - 1974 • Indomitable - 1977

  3. Basics • Magnetic field accompanied by radio-wave pulses • What type of tissue are you?

  4. Magnetic Field • One of three magnet types: • Permanent magnet • Resistive magnet • Superconducting magnet • Gradient magnets

  5. Creating an Image • Hydrogen protons align with magnetic field • RF pulse applied and terminated • Excess energy released • Picked up and sent to computer system

  6. Diagnosis / Evaluation Imaging planes Biological effects External objects Internal objects Claustrophobic Cost Advantages / Disadvantages

  7. Future • Medical industry • More compact, patient-friendly, less expensive • Factory floor • Fluid content analysis • Measure of material hardness • NMR Mouse • Carpet manufacturing

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