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Magnetic Resonance Imaging

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Magnetic Resonance Imaging Sarah Ezzell Engr. 302 History NMR - 1930s Dr. Damadian Tumor Detection by Nuclear Magnetic Resonance - 1971 Apparatus and Method ... – PowerPoint PPT presentation

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Title: Magnetic Resonance Imaging


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

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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