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3D Ultrasound Imaging

Historic Review for US. Developed from 1960'HandyReal-timeHarmlessLow costThe most used imaging equipmentNoisyPositioning. The Trends of Medical Imaging. From 2D to 3D.From structural to functional.From post-processing to real time processing.From harmful to safe.From high cost to low cos

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3D Ultrasound Imaging

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    1. Tsi-chian Chao Chang-gung University 3/21/2003 3D Ultrasound Imaging

    2. Historic Review for US Developed from 1960 Handy Real-time Harmless Low cost The most used imaging equipment Noisy Positioning

    3. The Trends of Medical Imaging From 2D to 3D. From structural to functional. From post-processing to real time processing. From harmful to safe. From high cost to low cost. From analog to digital.

    4. The processes

    5. Image Acquisition

    6. Positioning

    7. Scan Modes

    8. Different Signal Systems

    9. Registration

    10. Multi-Window Views

    11. Image Processing 3D Gaussian Smooth Eraser 3D Cut Undo Threshold Active Contour Rotation Lighting Brightness Contrast Movie

    12. 3D Visualization Volume rendering, which takes a set of vexels as inputs to generate 3D rendition. Surface rendering , which takes a set of surfaces as inputs to generate 3D rendition.

    13. Pros and Cons for Volume Rendering Pros can represent tiny and complicated structures. has better tolerance on noise. provides more information for deeper layers. . Cons does not promise good depth perception. are more time-consuming.

    14. Ray Casting

    15. Volume Rendering - History of Intensity

    16. Surface Rendering -Roughness of Surface

    17. MIP

    18. X-ray

    19. Distance Composition

    21. Blood Vessel around Kidney -using Doppler US

    22. 4D Ultrasound To see the movement or behavior of internal structures in 3D in real-time. Started in conventional real-time 2D Good positioning is required for non-stop 3D rendering by rapidly moving the acoustic array within the transducer housing.

    23. Summaries From 2D to 3D. From structural to functional. From post-processing to real time processing. From harmful to safe. From high cost to low cost. From analog to digital.

    24. Conclusion 3D ultrasound is a handy and low-cost way to help diagnosing 4D ultrasound is opening a new window for motional imaging Such real-time imaging systems demand huge amount of computing resources - can be improved with the improvements of new computers

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