Giraffe - CT scan-based visualization of skull and head blood vessels
Animation of the head of a 22-year-old adult female Baringo giraffe (Giraffa camelopardalis rothschildi, OUVC 10513) demonstrating aspects of the head blood vascular system. Arteries and veins were injected with different concentrations of barium and latex, allowing their discrimination with CT scanning. The first series (white background, surface rendering) depicts all the vessels as green, whereas the second series (black background, volume rendering) provides some color coding (blue veins and red arteries). This giraffe was named Susie and lived at The Wilds in Cumberland, Ohio, where she died of natural causes in December 2003 at which point her head came to WitmerLab at Ohio University for research. This visualization was done by Ryan Ridgely using Avizo, Adobe Premiere, and Quicktime. We thank Heather Rockhold and O’Bleness Hospital for CT scanning and NSF for funding. For news from WitmerLab, visit http://www.ohio.edu/witmerlab or our Facebook page (http://www.facebook.com/witmerlab).
Radiologist Kai-hung Fung turns CT (computed tomography) scans into art with his own digital enhancements. Click on the images to see what they are of.
CT and MRI of a red-eared slider (Trachemys scripta elegans)
"CT (a, b, d, f, g) and MRI (c, e) in red-eared slider (Trachemys scripta). CT and MRI have different capacities in visualising vasculature (d, e), soft tissue (c, f) and skeleton (a, g). (b, c): Both of the scanning modalities produce thin cross sectional images of the red-eared slider under study. (a, d, e, f, g): Further processing of the thin cross sectional images leads to a three dimensional digital model of the animal by the aid of volume rendering software"
From: Lauridsen H, Hansen K, Wang T, Agger P, Andersen JL, et al. (2011) Inside Out: Modern Imaging Techniques to Reveal Animal Anatomy. PLoS ONE 6(3): e17879. doi:10.1371/journal.pone.0017879
Baby’s bony body
Newborns are a bundle of bones – more than 300 to be more precise. Over time, many of these bones fuse together. One obvious example: The 44 original, separate components of the skull, whose loose confederation allows a newborn’s head to more easily pass through the birth canal and to accommodate dramatic brain and head growth during in the first year of life outside the womb. Generally, an infant’s skull fuses together by age two to provide better protection of the brain.
Overall, the total number of bones in the body is reduced to 206 by the time humans reach adulthood.
Above is a human fetus visualized in the third trimester of pregnancy using a computed tomographic scan and volume rendering software. Courtesy of Philipp Gunz and Jean-Jacques Hublin at the Max Planck Institute for Evolutionary Anthropology in Germany.
“The Digital Morphology Museum (DMM) provides an environment in which you can readily examine skeletal anatomy using the Primate Research Institute’s (PRI) collection of CT and MRI tomography scans. The goal of this site is to enable you to view the scans of non-human primates and mammals and to download scan data from our database for your original research. It is our great pleasure if you can make use of these data and we hope that they will provide new insights into primate and mammalian evolution”
Via Lawn Chair Anthropology