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High-Speed Documented Experimental Gunshot to a Skull-Brain Model and Radiologic Virtual Autopsy

 

作者: Michael Thali,   Beat Kneubuehl,   Peter Vock,   Gabriel Allmen,   Richard Dirnhofer,  

 

期刊: The American Journal of Forensic Medicine and Pathology  (OVID Available online 2002)
卷期: Volume 23, issue 3  

页码: 223-228

 

ISSN:0195-7910

 

年代: 2002

 

出版商: OVID

 

关键词: Skull-brain model;Radiology;Ballistics;High-speed photography;Radiographic autopsy;Digital autopsy;Virtual autopsy

 

数据来源: OVID

 

摘要:

The authors documented and evaluated experimental gunshots to a skull-brain model with high-speed photography and subsequent radiographic examination for comparison of the morphologic findings in the model. The artificial skull was a polyurethane ball constructed in layers, with a porous diploe sandwiched between a tabula externa and a tabula interna. The brain itself was simulated with gelatin 10% at 4°C, a material well known in wound ballistics. Gunshots were fired at the model from a distance of 10 m and documented with high-speed photography (up to 50 million frames/sec). Subsequently, a complete examination of the artificial skull was performed, including spiral computed tomography (with two-dimensional and three-dimensional reconstructions) and classic skull autopsy. The high-speed photographs clearly showed the dynamic development of the skull fracture system from an external perspective. The subsequent radiographic examination of the entire head volume created two-dimensional reformations in any plane and three-dimensional reconstructions of the gunshot injury of the polyurethane skull-brain model, especially the wound channel and the fracture system. Thanks to the model and high-speed photographs, the dynamic development of the morphology of a gunshot wound could be documented and studied. The data from computed tomography, using two-dimensional and three-dimensional postprocessing with a perspective view, were very similar to those from classic head autopsy, but derived in a hands-off and nondestructive manner. This examination method leads the way to radiographic digital autopsy or virtual autopsy.

 

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