MAGNETIC RESONANCE IMAGING

Artifacts

Mar 9, 2019 by in MAGNETIC RESONANCE IMAGING Comments Off on Artifacts

8Artifacts Introduction Phase Mismapping Aliasing Chemical Shift Artifact Out-of-Phase Signal Cancellation Magnetic Susceptibility Artifact Truncation Artifact Cross-Excitation/Cross-Talk Zipper Artifact Shading Artifact MoirÉ Artifact Magic Angle Equipment Faults Flow Artifacts Flow-Dependent…

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Gradient-echo pulse sequences

Mar 9, 2019 by in MAGNETIC RESONANCE IMAGING Comments Off on Gradient-echo pulse sequences

4Gradient-echo pulse sequences Introduction Variable flip angle Gradient rephasing Weighting in gradient-echo pulse sequences Coherent or rewound gradient-echo Incoherent or spoiled gradient-echo Reverse-echo gradient-echo Balanced gradient-echo Fast gradient-echo Echo planar…

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k-Space

Mar 9, 2019 by in MAGNETIC RESONANCE IMAGING Comments Off on k-Space

6k-Space Introduction Part 1: What is k-Space? Part 2: How are Data Acquired and How are Images Created from These Data? Part 3: Some Important Facts About k-Space! Part 4:…

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Protocol optimization

Mar 9, 2019 by in MAGNETIC RESONANCE IMAGING Comments Off on Protocol optimization

7Protocol optimization Introduction Signal-to-Noise Ratio (SNR) Contrast-to-Noise Ratio (CNR) Spatial Resolution Scan Time Trade-Offs Protocol Development and Modification After reading this chapter, you will be able to: Discuss factors that…

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Instrumentation

Mar 9, 2019 by in MAGNETIC RESONANCE IMAGING Comments Off on Instrumentation

9Instrumentation Introduction Magnetism Scanner Configurations Magnet System Magnet Shielding Shim System Gradient System RF System Patient Transport System Computer System and Graphical User Interface After reading this chapter, you will…

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