MRI NOTES.pdf

MAGNETIC RESONANCE IMAGING DEFINITION MRI  Provides sectional images MAGNETIC RESONANCE IMAGING  No superimposition of structures ...

MAGNETIC RESONANCE IMAGING DEFINITION MRI  Provides sectional images MAGNETIC RESONANCE IMAGING  No superimposition of structures  A computer-based cross-sectional imaging  Clearly demonstrates structures even modality without contrast media  The use of magnetic field and radio waves to  Can resolved relatively small contrast obtain a mathematically reconstructed image differences among tissue  Originally called: Nuclear Magnetic  Contrast depends on the interaction of Resonance matter with electromagnetic forces ADVANTAGES OF MRI CONVENTIONAL  Best low contrast resolution  Provides “flat” image o Main advantage  Structures are superimposed o Rationale:  Contrast media is required to clearly  X-ray attenuation coefficient distinguished one anatomic structure or in soft tissue – differ by