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Day 12: Image Processing

An MRI's View

----------------------------------------------- Frame 22: top view Frame 65: side view

Frame 22 is a "top view" showing the bottom surface of the yolk. Some of the blood vessels that bring nutrients to the chick can be seen running across the bottom surface of the yolk. There are many blood vessels in the egg, connecting the chick to the yolk and to the membranes along the inside of the shell which are used to breathe (remember, the shell is porous). These blood vessels appear bright if they pass through the MRI slice. (In frame 65, the aorta and another vessel at the bottom edge of the air sac at G5, both pass through the MRI slice and appear bright.) If the blood vessels lie entirely within the MRI slice, they will appear darker (as they do in frame 22)

Comments on these images were supplied by Carl Gregory. Thanks Carl!

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EGG BIOLOGICAL IMAGING DATABASE EGG MATH EMBRYOLOGY NIH Image HOME Copyright (C) 1998 University of Illinois at Urbana-Champaign