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Welcome to the presentation of the project

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"Anatomical Size Comparison", which was  developed
in

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the elective module Extended Reality.

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The project was developed by Nico Glombek
and me, Matthis Hofmann.

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The whole thing runs on a VR headset and here
the

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comparison of different sizes of the

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cardiovascular system should succeed easier
by magic interactions.

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So, the feeling should be conveyed how small
certain components

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of the cardiovascular system actually are.

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But we can also look at information  about
objects with this.

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For example, of the heart.  Most people would

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probably recognize that. The height and width

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are noted here on this information sheet

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as well as the various components that belong
to it,

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such as the vena cava. The vena cava is also
shown here below again and

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here we can also call up information on  it
via the laser pointer.

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Now there are so-called magical interactions,
which means things that are not possible in
normal life,

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such as teleportation, which we have  implemented
here

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in order to move around more easily

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and to better represent this sense of scale.

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We're going to teleport in front of the aorta.

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What we can do now is we can scale  ourselves
to the size of this aorta.

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I have just done that.

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We are now at the height of an aorta  that
is already significantly

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smaller compared to the heart.

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Again, of course, we can also  display the
information on this.

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Another magical interaction that we have built
in, is

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a camera movement behind the own avatar,

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so that different sizes

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can be compared better.

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We know now for example:  "We are scaled on
the size of an aorta"

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and could teleport us now for example  again
before the heart

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and see now: the aorta is already  clearly
smaller than the heart.

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But the whole thing is also much more  interesting
with smaller components like

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for example the erythrocyte.

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This is only 7.5 micrometers in height

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and you can see that is already pretty  small
compared to the heart.

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It is also interesting

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that if we stand in front of the  capillary,

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for example, and do the camera  movement again,

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we see that the erythrocyte is  even smaller
than the capillary;

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the erythrocyte has to deform in order

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to pass through the capillary.

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If we now continue to teleport,  again in front
of the heart,

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we can see that the capillary is much smaller.

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But this is also interesting with other components,

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for example here we are now in front of the
vena cava.

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The vena cava is a little bit bigger than the
aorta.

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So, you can just look around a bit,  compare
sizes a bit,

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also information, maybe, memorize,

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for example, the wall thicknesses,

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because they are decisive for the function

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of different vessels.

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Something like that is possible here in this
project. Of course, the whole thing can be
extended,

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but this is what we have implemented in the
fifth semester in the elective module

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and I hope you have now got a small  insight
into what is possible here,

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in such a subject, also in the study program
BMT

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and I thank you very much for listening.  I
wish you a nice day.