Technological advances in forensic evaluation of traumatic injuries: 3D/CAD photogrammetry merged with 3D radiological scanning
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TERTÎȘNÎI, Ludmila. Technological advances in forensic evaluation of traumatic injuries: 3D/CAD photogrammetry merged with 3D radiological scanning. In: Health Technology Management: 3rd International Conference, Ed. 3, 6-7 octombrie 2016, Chișinău. Chișinău, Republica Moldova: Technical University of Moldova, 2016, Editia 3, p. 101.
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Health Technology Management
Editia 3, 2016
Conferința "Health Technology Management"
3, Chișinău, Moldova, 6-7 octombrie 2016

Technological advances in forensic evaluation of traumatic injuries: 3D/CAD photogrammetry merged with 3D radiological scanning


Pag. 101-101

Tertîșnîi Ludmila
 
”Nicolae Testemițanu” State University of Medicine and Pharmacy
 
 
Disponibil în IBN: 2 aprilie 2019


Rezumat

3-D/CAD photogrammetry: Photogrammetry is the process of making measurements and acquiring dense 3D geometric information from photographs or stereoscopic image overlaps, especially for recovering the exact positions of surface points. Three-dimensional/computer aided design (3D/CAD) photogrammetry has been shown to have extensive applications in a variety of fields, including for documentation of forensics-relevant traumatic injuries. Forensic, 3-D/CAD-supported photogrammetry creates morphologic data models of the injury and of the suspected injury-causing instrument allowing the evaluation of a match between the injury and the instrument [1, 2]. This enables comparing the virtual 3D model of the injury against the virtual 3D model of the possible injury-causing instrument. In subjects with traumatic injuries of the skin and bones, 3-D/CAD photogrammetry can help determine the shape and size of the injury as well as a true-to-scale correlation of the wound and inflicting tool. 3D radiological scanning: In addition to the 3D photogrammetric body surface registration, the radiological documentation provided by a volume scan, such as spiral multi-detector computed tomography (CT) or magnetic resonance imaging (MRI) scanning, allows the registration of the sub-surface injuries, which are not visible on photogrammetry [1]. The combined method of merging 3D photogrammetry and 3D radiological acquisitions creates the potential to perform many kinds of reconstructions and postprocessing of a variety of injuries for forensic analysis, which is particularly important in trauma patients. Recently developed programs aim at combining 3D colored photogrammetric surface and 3D gray-scale radiological internal imaging, representing a new step towards a new kind of reality-based, high-tech wound documentation and visualization in forensic medicine. Furthermore, the combination of 3D/CAD photogrammetry and 3D radiological acquisitions has the advantage of being observer-independent, non-subjective, non-invasive, digitally storable over years or decades and even transferable over the web for second opinion [1]. Other potential applications: Photogrammetric method has alsready been reported useful for surface topography determination before beginning radiation therapy, for three-dimensional evaluation of spinal correction in scoliosis, soft tissue profile and dental arches measurements in a variety of cranio-maxillofacial interventions, etc. In the Republic Moldova, a variety of 3D reconstruction techniques are currently being utilized for radiological evaluation of trauma patients. Given the pace of technological advancements during the last years, adding the 3-D/CAD photogrammetry to the utilized 3D radiological scanning remains a perspective for the near future.