Researchers in Texas and Utah report they have created a new means of producing three-dimensional embryonic images called microCT-based virtual histology. The process uses computer visualization techniques to convert X-ray CT scans of mouse embryos into detailed three dimensional images showing both the mouse's exterior and interior. Normally embryos are sliced up physically and examined under a microscope, a very time-consuming method. With the new process, the embryos are instead stained with special dyes which permeate the skin and other membranes. The team of researchers wrote a new computer algorithm to take the CT scan data and automatically distinguish various organs and structures in the embryo. The virtual rendering of the CT scan data also includes a virtual light source so the 3-D image includes shadows that make it easier for the human eye to interpret the image. The embryo images can be made transparent and have cutaways so that internal organs and body parts are visible. The process allows researchers to study more embryos much faster than normal. Mouse
embryos are typically used in genetic studies, and to test the safety of drugs and various chemicals. Read more: http://www.physorg.com/news65965267.html
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