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Topic 3 Image Formation

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Topic 3 Image Formation

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    1. Topic 3 Image Formation Signal Processing Data Space and K Space Image Construction Pulse Sequence Diagram

    2. Sampling - Delta Function

    3. Sampling Density

    4. The Sampling Data

    5. Original FT - Low Pass Filter

    6. Sampling Interval vs Total Sampling Time

    7. Nyquist Theorem

    8. Sampling Frequency and Bandwidth

    9. Nyquist Frequency and Bandwidth

    10. Effect of Sampling Interval

    11. Aliasing

    12. Aliasing - Perceived Frequency

    13. Image Construction

    14. Sum of Signals in Column-Projection

    15. Image Construction Back Projection

    16. Image Construction-FT Method: Data Acquisition

    17. The Data (K) Space

    18. The K (Data) Space

    19. Inverse FT of K (Data) Space The Images

    20. Image Formation Process

    21. From Data Space to Image

    22. Field Of View

    23. Image Construction: Inverse Fourier Transformation

    24. 3D K Space

    25. Image of K Space

    26. Image Constructed From Edge of K Space - Minimal Signal

    27. Image Constructed From Centre of K Space - Less Detail

    28. Multi-K Spaces

    29. Characteristics of K Space

    30. Polarities of K Space

    31. K Space: Real and Imaginary

    32. K Space: Conjugate Symmetry

    33. Real and Imaginary Images

    34. Magnitude and Phase Images

    35. Half NEX

    36. Fractional Echo

    37. 1/4 NEX

    38. Conventional Spin Echo Pulse Sequence

    39. Dead Time

    40. Multislice Acquisition

    41. Fast Spin Echo: Dual Echo Example

    42. Spin Echo PSD

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