1. Siemens Medical Systems
Computed Tomography (Postprocessing)
Siemens Medical Systems

2. CT? - Yes, Scan Slice by Slice...

3. What we can do with the acquired volume data - Image Postprocessing
Spiral CT?
- Yes, Scan an Entire Volume...
What we can do with the acquired volume data - Image Postprocessing
MPR Multiplanar Reconstruction
SSD Shaded Surface Display
MIP Maximum Intensity Projection
VRT Volume Rendering Technique
FT Fly Through
*The information about this product is being provided for planning purposes only. The Image Fusion package is not yet commercially available in the U.S.

4. MPR - Multi Planar Reconstruction
2D reconstruction based on a volume, along a certain axis 2
1. Coronal
2. Sagittal
3. Paraxial
4. Irregular 3 1 4

5. MPR - Coronal & Sagittal
Coronal (Abdomen)
Sagittal (Abdomen)

6. MPR - Paraxial & Irregular
Paraxial (Abdomen)
Irregular (Abdomen)

7. MPR - Based on A Sagittal View
The postprocessed MPR images can also be used as a reference image.
This is an irregular cutline based on a sagittal view of the
lumbar spine.

8. MPR - Based on A Sagittal View
Paraxial cutline through a sagittal view to simulate gantry tilt with axial image quality

9. MPR - Based on A Coronal View
Axial cutline through a coronal view of lumbar spine

10. SSD
Threshold

11. SSD
2D SSD bilde
3D dataset

12. SSD - Shaded Surface Display
SSD is a virtual 3-dimensional image.
Thresholding determines which densities will be displayed.
Grey values show the distance from the "screen" and give shadow effects
Density information is lost 3D 2D

13. SSD with Different Thresholds
3D Face
(threshold: -400 HU)
3D Head
(threshold: 150 HU)

14. MIP The voxels with the highest value are selected
voxel with the highest attenuation

15. MIP
2D MIP image
3D dataset

16. MIP - Maximum Intensity Projection
The highest CT value in the viewing direction is
presented in the 2D MIP images
Density information is kept
The bone structures which have
higher intensities than the vessels make editing necessary
You get a 3-dimensional effect when many MIP images around
one axis are displayed in
Cine mode

17. 3D Edit Eliminate what you don’t want...
Just see what you want to see...
Normal Axial Image
Edited Image

18. VRT - Volume Rendering Technique
Mean value

19. VRT
2D VRT image
3D dataset

20. Color and transparent 3D display
VRT - Volume Rendering Technique
Color and transparent 3D display
Percentage HU
Tissue 1
Tissue 2
Separate tissues via HU into different
Brightness/Opacity/Color
Overlay display of different organs

21. SSD & MIP
SSD -
no density difference
MIP -
density difference kept

22. MIP & MPR MIP - max. intensity kept , & 3 Dimensional
MPR - all intensities kept ,
& 2 Dimensional

23. VRT
&
SSD AP

24. SSD / MIP / VRT SSD Image: MIP Image: VRT Image: w/o density info
& superimposed
MIP Image:
w/ density info
& superimposed
VRT Image:
w/ density info
& transparent

25. Fly Through
View anatomic structures from inside
You
are
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