From scan to screen: 3D bat anatomy for interactive learning and divulgation purposes

Bats are mammals whose distinctive anatomy and ecological importance make them valuable subjects for biological, veterinary, and pathological research. The CABLES project aims to develop tools for monitoring bat health and environmental risks, including innovative approaches for the 3D reconstruction of bat anatomy. This thesis investigates the application of three different imaging and 3D reconstruction techniques: histological reconstruction, magnetic resonance imaging, and optical 3D scanning. A fetal specimen was processed histologically, digitally scanned and reconstructed from sequential tissue sections using different software tools. An adult specimen was examined using high-field 7T MRI and optical 3D scanning with an EinScan H2. The resulting datasets were processed and converted into 3D models. The models obtained presented important differences in quality. The histology models presented poor alignment and distortion, mainly associated with irregular section spacing. The MRI model provided a continuous anatomical volume but lacked several fine structures, while the optical 3D scan produced the best overall reconstruction, accurately reproducing the external morphology of the specimen. Despite technical and computational challenges the results nevertheless demonstrate the potential of 3D reconstruction for anatomical research, education and digital preservation. These models could also support future 3D printing initiatives, providing reusable and accessible anatomical resources that complement traditional teaching.