The brain is encased in the bony scull and floats in a pool of cerebrospinal fluid, which protects the brain from shock waves. The brain is divided in several regions, each with their own important functions.

The brain monitors and regulates many unconscious bodily processes, as well as being the site of conscious and intellectual memory and emotions. The brain weighs about 1,3kg and contains over 100 billion nerve cells and millions of supporting sells.

Although the brain accounts for only 2% of a person’s body weight, it requires 20% of the body’s blood.

Humans have most complex brain of all animals. It gives humans the power for original thought, and communication through speech and writing.[37], [38]
 
 

4.7.1 Background

Data was retrieved from the General Electric MRI scanner at Hydromed Hospital, Bloemfontein. The 2D CAT scanned images imported by using the GE ADVANTAGE program. The Materialise Mimics software was used during this phase. The cerebellum was separated from the rest by using a mask,
A 3d representation of the cerebellum was made as it was the field of interest.
 
 

4.7.2 Conclusion
 

The image format was a bit different (512x448) than the normal 512x512 or 256x256.

The data was easily converted. Future studies to combine CAT and MRI data registration are of interest to Universitas Academic Hospital.

Finer slices would be required to obtain better results.
 
 

4.7.2.1 Images
 
 
 

Figure 4.7.2.1 3D reconstruction of the Human Brain artery network.	Figure 4.7.2.2 3D reconstruction of the Human Brain artery network.
Figure 4.7.2.3 3D reconstruction of the Human Brain artery network.	Figure 4.7.2.4 3D reconstruction of the Human Brain artery network.

 

4.7.3 Brain Data Sheet:
 
 
 

	Description	Options (Default)	Data
1	CT Image Names		brain
2	Patient/Project Name		brainm
3	Number of First Input Image		brainm_1.000 @ -26.5
4	Number of Last Input Image		brainm_1.060 @ 32.5
5	Number of First Output Image		brainmri.000
6	CT or MRI	CT, MRI	MRI
7	Horisontal Nr. Of Image Pixels	0 to 65535 (265,512,1024)	512
8	Vertical Nr. Of Image Pixels	0 to 65535 (265,512,1024)	448
9	Number of Images per File	(1)	1
10	File Swap Format (0,3)	0,3	CCGEADVA
11	Pixel Type	B,UB,S,US,L,UL,F	-
12	Header Size	*see formula below	-
13	Inter Image Header Size	0	-
14	Add Value	0 to 4095	-
15	Scale Value	0 to 4095	-
16	Table Position	(mm)	-
17	Distance Between Slices	(mm)	1
18	Slice thickness	(mm)	3
19	Pixel Size SQ.	F.O.R./Nr. Hor. Pixels (mm)	0.39
20	Gantry Tilt Angle	Degrees	0
21	Field of Reconstruction/View	(mm)	200(150)
22	Number of Images		60
23	File Size of CAT Image	kb	265
24	File Size of Converted Image	kb	203-227
25	.3dd file size	Mb	6.7-17
26	.STL file size	Mb	-
27	RP Method	(SLA,FDM,OTHER)	-
28	.IGS file size	Mb	-
29	RP Slice file size	Mb	-
30	RP Download File size	Mb	-
31	Grow Time	Hour	-
32	Tip size	(T12, T25)	-
33	Slice Thickness	(0.01", 0.014")	-
34	Finishing Time	Hour	-
35	Processing Time	Hour	2
36	Data Retrieval Time	Hour	2
37	Total Cost	Rand	600