Tesis doctoral de Schifino Valente Ana Luisa
The normal parameters for radiology, ultrasound, computed tomography and magnetic resonance of the loggerhead sea turtle (caretta caretta) were studied and described in the five scientific papers presented in this thesis. Additionally, two others papers concerning the use of doppler ultrasonography and evaluation of the ingesta passage times in the loggerhead sea turtle are also included as annex documents. The last paper, althrough not related to a specific imaging technique, was included due to the use of specialized radiographic markers required to dog and cat testing. dorsoventral radiographs taken of the neck and body of 30 loggerhead sea turtles using analog and digital radiography showed image distortion or superimposition at various points, due to the natural curvature of the neck and shell which hindered the accurancy of interpretation. The pectoral and pelvic girdles were easily recognized. Important external landmarks included the vertebral and lateral scutes, and important internal landmarks included bronchi, coracoids bones, caudal border of the pulmonary fields, and the acetabulum. bones from the distal part fo the fore- and hind flippers were seen in detail in radiographs using mammography film-screen combination. Pectoral and pelvic girdles, superimposed by the carapace bones, were better seen on the standard radiographs using rare-earth intensifying screens. Mammographic radiographs of the limbs was clearer compared with mammals due to the very low number of superimpositions. The presence of a massive cartilage in the epiphyses produced better visibility of limb-ends. in ultrasonographic examinations of 25 turtles the fourth and fifth cervical vertebrae, spinal cord, and the venous sinuses of the external jugular vein were clearly seen through the cervical-dorsal acoustic window. From the cervical-ventral acoustic window, the esophagus and the heart were imaged. The stomach was more frequently seen through the left axillary acoustic windows
Datos académicos de la tesis doctoral «Diagnostic imaging of the loggerhead sea turtle, caretta caretta«
- Título de la tesis: Diagnostic imaging of the loggerhead sea turtle, caretta caretta
- Autor: Schifino Valente Ana Luisa
- Universidad: Autónoma de barcelona
- Fecha de lectura de la tesis: 07/09/2007
Dirección y tribunal
- Director de la tesis
- Rafaela Cuenca Valera
- Tribunal
- Presidente del tribunal: Miguel angel Sanchez-valverde garcia
- felix Garcia arnás (vocal)
- pier giuseppe Meneguz (vocal)
- Rafael Banera chacón (vocal)