Principles of Radiologic Imaging

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• Risks of Medical Radiation
  • Radiation and cancer
  • Radiation during pregnancy
  • Recommendations
  • References

• Radiographic Contrast Agents and Contrast Reactions
  • Allergic-type contrast reactions
  • Contrast nephropathy
  • Lactic acidosis
  • References

• Angiography
  • Uses of Angiography
  • Variations of Angiography
    • Digital subtraction angiography
  • Disadvantages of Angiography

• Computed Tomography (CT)
  • Uses of CT
  • Variations of CT
    • Virtual colonoscopy and CT enterography
    • CT IV pyelography (CT IVP) or CT urography
    • CT angiography
  • Disadvantages of CT

• Conventional Radiography
  • Uses of Conventional Radiography
  • Variations of Conventional Radiography
    • Contrast studies
    • Fluoroscopy
  • Disadvantages of Conventional Radiography

• Magnetic Resonance Imaging (MRI)
  • Uses of MRI
    • Contrast agents
  • Variations of MRI
    • Diffusion (diffusion-weighted) MRI
    • Echo planar imaging
    • Functional MRI
    • Gradient echo imaging
    • Magnetic resonance spectroscopy (MRS)
    • Magnetic resonance enterography
    • Perfusion MRI
    • Positron emission tomography (PET)–MRI
  • Disadvantages of MRI
    • Magnetic field
    • Claustrophobia
    • Contrast reactions
    • References

• Mammography
  • Variations of mammography
  • Reference

• Positron Emission Tomography (PET)
  • Uses of PET
  • Variations of PET
    • PET-CT
  • Disadvantages of PET

• Radionuclide Scanning
  • Uses of Radionuclide Scanning
  • Variations of Radionuclide Scanning
    • Single-photon emission CT (SPECT)
  • Disadvantages of Radionuclide Scanning
    • Reference

• Ultrasound
  • Uses of Ultrasound
  • Variations of Ultrasound
    • A-mode
    • B-mode (gray-scale)
    • M-mode
    • Doppler
  • Disadvantages of Ultrasound