An Introduction to Visible Human Project Ku-Yaw Chang [email protected] Assistant Professor, Department of Computer Science and Information Engineering Da-Yeh University.

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Transcript An Introduction to Visible Human Project Ku-Yaw Chang [email protected] Assistant Professor, Department of Computer Science and Information Engineering Da-Yeh University.

Slide 1

An Introduction to
Visible Human Project
Ku-Yaw Chang
[email protected]
Assistant Professor, Department of
Computer Science and Information Engineering
Da-Yeh University


Slide 2

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Slide 3

Outline
Background
Initial Aim
Demonstration
Users’ Conferences

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Slide 4

Background
Having its roots in a 1986 long-range planning
effort of the National Library of Medicine (NLM)






http://www.nlm.nih.gov/nlmhome.html

Foreseeing an increasing role for electronically
represented images in clinical medicine and
biomedical research
Considering building and disseminating medical
image libraries

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Slide 5

Background
The following recommendation was made
early in 1989




NLM should undertake a first project building a
digital image library of volumetric data representing
a complete, normal adult male and female.
This Visible Human Project will include
digitized photographic images from cryosectioning

digital images derived from computerized tomography and
digital magnetic resonance images of cadavers.

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Slide 6

Background
Two-dimensional images are composed of
picture elements or pixel.


Gray level : 0-255

Pixel

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Background
Three-dimensional images are composed
of volume elements or voxel.

Voxel

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Slide 8

Initial Aim
Acquire transverse CT, MRI and cryosection images of a representative male
and female cadaver at an average of one
millimeter intervals



Visible Human Male
Visible Human Female

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Slide 9

Initial Aim
The Visible Human Male data set


MRI, CT and anatomical images.

MRI





Axial images of the head and neck and longitudinal
sections of the rest of the body were obtained at 4
mm intervals.
Resolution: 256 pixels by 256 pixels
Grey tone: 12 bits (0-4095)

CT




Axial scans of the entire body taken at 1 mm intervals
Resolution: 512 pixels by 512 pixels
Grey tone: : 12 bits (0-4095)

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Slide 10

Initial Aim
The Visible Human Male data set


Anatomical images
Cross-sections are at 1 mm intervals


to coincide with the CT axial images.

1871 cross-sections for both CT and
anatomy
Complete male data set



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Size: 15 gigabytes
Publicly available in November, 1994.
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Slide 11

Initial Aim
The Visible Human Female data set


Same characteristics as the The Visible
Human Male with the following exception
Axial anatomical images were obtained at 0.33 mm
intervals. (Male: 1mm)
5,189 anatomical images (Male: 1871 images)

Complete female data set



Size: 40 gigabytes
Publicly available in November, 1995.

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Slide 12

Initial Aim
The Visible Human Female data set


Spacing in the "Z" direction was reduced to
0.33mm
To match the 0.33mm pixel sizing in the "X-Y"
plane
To work with cubic voxels in three-dimensional
images.

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Slide 13

Demonstration (Male)
CT Scan


Prior to Freezing

Head subset
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Demonstration (Male)
CT Scan


Prior to Freezing

Thorax subset
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Slide 15

Demonstration (Male)
CT Scan


Prior to Freezing

Abdomen subset
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Demonstration (Male)
CT Scan


After Freezing

Head subset
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Slide 17

Demonstration (Male)
MRI Scan

Thorax subset
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Slide 18

Demonstration (Male)
MRI Scan

Pelvis subset
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Slide 19

Demonstration (Male)
Color cryosection

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Slide 20

Demonstration (Male)
Color cryosection

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Demonstration (Male)
Color cryosection

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Demonstration (Male)
Color cryosection

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Demonstration (Male)
Color cryosection

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Demonstration (Male)
Color cryosection

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Slide 25

Demonstration (Male)
Color cryosection : from head to toe

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Slide 26

Demonstration
Transverse (or axial) sections

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Slide 27

Demonstration
Coronal sections

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Demonstration
Sagittal sections

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Demonstration

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Demonstration

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Demonstration

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Demonstration

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Demonstration

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Slide 34

Users’ Conferences
The Visible Human Project Conferences


1996
http://www.nlm.nih.gov/research/visible/vhp_conf/v
hpconf.htm



1998
http://www.nlm.nih.gov/research/visible/vhpconf98/
MAIN.HTM



2000
http://www.nlm.nih.gov/research/visible/vhpconf20
00/MAIN.HTM

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Slide 35

Reference Websites
Fact Sheet : The Visible Human Project


http://www.nlm.nih.gov/pubs/factsheets/visible
_human.html

Voxel-man Gallery


http://www.uke.unihamburg.de/zentren/experimentelle_medizin/i
nformatik/galerie/io.en.html

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