35 - THE SUPERIORITY OF USING FRESH CADAVERIC SPECIMENS COMPARED TO OTHER FORMS OF PRESERVATION IN THREE-DIMENSIONAL PHOTOGRAMMETRY.

Poster Board Number: 35
There are separate poster presentation times for odd and even posters.
Odd poster #s – first hour
Even poster #s – second hour

Co-authors:

Caio Nakamura do Nascimento - Centro Universitário Christus (UNICHRISTUS); Marcela Albuquerque de Holanda - Centro Universitário Christus (UNICHRISTUS); Jônatas Catunda De Freitas, MD - Professor, Human Anatomy, Centro Universitário Christus (UNICHRISTUS)

Abstract Body :The use of cadavers in anatomical teaching is a crucial practice, although it faces significant challenges related to its preservation. Various methods, such as formalization, glycerolization and plastination, have been developed to maintain anatomical integrity over time. These traditional techniques, although useful, cannot guarantee that the clarity of anatomical landmarks is fully maintained over time. For this reason, the search for more effective and detailed methods in anatomical teaching has led to a growing appreciation of fresh cadaveric specimens compared to those subjected to preservation methods. In this context, 3D scanning has emerged as a tool for digitizing and storing anatomical information on fresh cadaveric specimens. This study aims to demonstrate the superiority of using fresh cadaveric specimens in three-dimensional scanning compared to other forms of biological preservation, emphasizing the relevance of this approach in optimizing anatomical teaching and research. In this comparative study, we used cadaveric specimens of human hearts preserved using formalization, glycerolization and plastination procedures from the human anatomy laboratory at the Centro Universitário Christus. The fresh specimens were accessed in partnership with the Ceará Death Verification Service (SVO). The photogrammetric scanning process was developed using a mobile application to produce digital models. 3D digital copies of human heart specimens were developed using traditional preservation techniques. Among these, ten models were produced by glycerolization, five by plastination and three by formalization. In addition, three 3D models of fresh human hearts were created. A thorough analysis of these models was conducted by the faculty of the Human Anatomy Department at the Centro Universitário Christus. The resulting consensus was clear: the 3D images of the fresh hearts represented the anatomical landmarks more authentically and accurately than the traditionally preserved specimens. In conclusion, the research and analysis reveal that three-dimensional digital models generated from fresh specimens consistently demonstrated more authentic and accurate representations of anatomical landmarks compared to specimens that have undergone preservation techniques. The superiority of using fresh cadaveric specimens in three-dimensional photogrammetry highlights the need to rethink and optimize conservation approaches in the field of anatomy by seeking methods that preserve structural integrity, authenticity, and anatomical richness, allowing for significant advances in the understanding and teaching of human anatomy.