3D model of anatomy

On what is/should Stijn spend/waste his time on?

Moderators: pbgroupie, Donya, Stijn

Postby Stijn on Tue Mar 26, 2002 4:08 pm

I did do some work on the 3D anatomy model of an apple snail, but it's far from finished...
But maybe one day... :smile:
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby TheHerper on Tue Mar 26, 2002 10:41 pm

That should be cool, And it will help alot of people out, (me also) like finding out the sex of applesnails and where everything is located... :grin:
The difference between mediocrity and greatness is in the subtleties…
http://www.paperstarsdesign.com
User avatar
TheHerper
Basic moderator snail
Basic moderator snail
 
Posts: 130
Joined: Sun Nov 11, 2001 1:00 am
Location: PDX, Oregon

Postby joanne on Mon Apr 01, 2002 6:54 pm

I've been exploring the new "history" thing out there. I just noticed :grin:
Will the wild ox be willing to serve you? Will he bed by your manger? Can you bind the wild ox in the furrow with ropes? Or will he plow the the valleys behind you? Will you trust him because his strength is great? Job39:9-11
joanne
Parent snail
Parent snail
 
Posts: 79
Joined: Thu Jan 03, 2002 1:00 am
Location: Western Wisconson

Postby livercookie on Tue Apr 02, 2002 1:38 pm

THAT SOUNDS REALLY COOL I HOPE IT WORKS OUT
livercookie
Hatchling
Hatchling
 
Posts: 3
Joined: Mon Apr 01, 2002 1:00 am
Location: canada

Postby Stijn on Mon May 06, 2002 1:26 pm

Some test pictures of an adult female Pomacea canaliculata snail.


Image
Image
Image
Image



<font size=-1>[ This Message was edited by: Stijn on 2002-05-11 01:10 ]</font>
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby Stijn on Sat May 11, 2002 12:12 am

Now working on some more abstract, organ specific 3D models. I think I can show some within days (or weeks). Hopefully I can get some interactive versions to works as well.
Anyway, it looks promising here on my screen.

Stijn
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby jasonagray on Sat May 11, 2002 8:05 pm

stijn- i'd be interested to know how you are getting these pics. what machine are you using? looks too good to be mri.
jasonagray
Member snail
Member snail
 
Posts: 32
Joined: Mon Sep 24, 2001 1:00 am

Postby Stijn on Sun May 12, 2002 7:45 pm

How I made these see-through pictures?
Indeed not with MRI scans.

I actually had to slice a snail in pieces in order to make this model. I realize that not all of you will like this idea, nor do I like this myself. But my motivation to sacrify a snail for this project is as follows: If I can make a 3D model of the whole snail anatomy, one can learn more about these snails without having to dissect them.
A similar project is already done with a frog as subject. See this link http://www-itg.lbl.gov/ITG.hm.pg.docs/Whole.Frog/Whole.Frog.html

Nevertheless, If you don't aggree, I'm always open for your opinions.


Now the more technical explanation:
I sacrified a snail by freezing the snail to -20°C.
Next I fixated the snail in 4% formaldehyde in PBS (fixating agent in a buffer solution). I used this fixation step to make sure that the original snail shape was conserved.
After fixating the snail overnight at 4°C I transferred the snail in formic acid to dissolve the shell. This took about 6 hours.
The snails body was then put in a special medium for making microtome slices (tissuetek) and froozen to -20°C.
Then the reall work could start: I made 132 slices of the snail (250µm thick) and photographed the remainder of the snail after each slice.
Once I had all 132 slices on my computer I aligned them and imported them to a specialized 3D program.
Now I'm in the process of making 3D models. My computer is almost on its knees... crunching all that data. :smile:

Stijn

<font size=-1>[ This Message was edited by: Stijn on 2002-05-12 23:27 ]</font>
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby Stijn on Sun May 12, 2002 10:31 pm

Yes, I have some specialized equipment here are my disposal. That's the advantage of working on a lab :smile:
The machine itself is a cryo-microtome. Normally it's used to make ultra-thin slices for microscopic preparates. However, it also served very well for this snail taks...
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby Stijn on Sun May 12, 2002 10:55 pm

Here is an early version of a 3D model.
It's far from finished, but it gives an idea...

Image

<font size=-1>[ This Message was edited by: Stijn on 2002-05-12 23:55 ]</font>
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby jasonagray on Mon May 13, 2002 4:31 am

must have taken forever. heres a similar project done on humans, i had saved from a while back.

http://www.madsci.org/~lynn/VH/transverse.gif
jasonagray
Member snail
Member snail
 
Posts: 32
Joined: Mon Sep 24, 2001 1:00 am

Postby TheHerper on Mon May 13, 2002 5:45 am

Jason~ that was a cool link! I saw how they made that on Discovery channel once....

Anyway Stijn, WoW! Your gonna get the Nobel Prize one of these days.....
The difference between mediocrity and greatness is in the subtleties…
http://www.paperstarsdesign.com
User avatar
TheHerper
Basic moderator snail
Basic moderator snail
 
Posts: 130
Joined: Sun Nov 11, 2001 1:00 am
Location: PDX, Oregon

Postby SnailySarah on Mon May 13, 2002 10:53 pm


Then the reall work could start: I made 132 slices of the snail



so thats where the deli slicer goes after work ends..... ;x

<g>
SnailySarah
Special moderator snail
Special moderator snail
 
Posts: 105
Joined: Mon Jul 30, 2001 1:00 am
Location: hell

Postby Stijn on Fri May 17, 2002 11:11 pm

A small movie, like the human movie mentioned by Jasonagray.

http://www.applesnail.net/content/movies/through_snail.mpeg
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Postby Stijn on Wed Jun 05, 2002 11:52 pm

Still working on the 3D model.

It takes quite some time I must admit. However, I'm able to trace the heart (both chambers and ampulla), the large vessels, the kidneys, the gill, the lung, the intestines-stomach, the mouth (jaws + tongue), the liver, the oviduct and albumen (yolk) gland and something which could be part of the nerve system.
I didn't expect it to be that hard to distinguish all organs and to have a good understanding how they fit into the body, but well, that where this whole thing is about: helping everyone out with the anatomy of these snails... :smile:

Maybe I will release a first version within 2 weeks (body with intestines and maybe the blood vessels).
User avatar
Stijn
Magic snail
Magic snail
 
Posts: 441
Joined: Sun Jul 29, 2001 1:00 am
Location: Belgium

Next

Return to In the pipe-line...

Who is online

Users browsing this forum: No registered users and 1 guest

cron