Morphological Comparison of Skeletal System of Animals and Humans by MSCT-3D Technique

Objective To compare the morphology of shoulder girdle and trunk bones of swine,canine,simian and human being by multi-slice computed tomography(MSCT).Methods MSCT scan was performed on swine,canine,simian and humans.The original images were reconstructed orthogonally,and to compare the curvature of the spine,structure and components of the vertebra,sternum,ribs and shoulder girdle.Results The basic components of the vertebra and ribs of swine, canine and simian were the same as in human being.The spine curvature,the number of vertebrae and ribs,structure of sternum and connection of chest and ribs,and the composition of shoulder girdle in the animals were different with those in humans.The simian spine curvature and shoulder girdle were the same as that of human being.It had cervical,thoracic,lumbar and sacral curvature,and the shoulder girdle was composed of scapula and clavicle.However,swine and canine had cervical, thoracic lumbar and sacral curvature,and the shoulder girdle was composed of scapula only.Conclusion The morphology of trunk bones and shoulder girdle in rhesus monkey is similar with that of humans,but there is a great difference between Guizhou xiang pig,Beagle dogs and human being.MSCT provides a relatively non-invasive,rapid,dynamic and continuous observation method in vivo.