Fig 1.
Left-right lateral projection of a 9 years old Saimiri sciureus showing the measurements of the length and height of the thoracic vertebrae (white lines) and sternebrae (black lines).
The diameter of the aorta (red line) and caudal vena cava (blue line) are also presented. The angle of cardiac inclination is represented by the two white lines between the cranial border of the cardiac silhouette and the sternebrae.
Fig 2.
Right-left lateral projection of a 4 year old Saimiri boliviensis peruviensis.
Measurements of tracheal diameter (red line) to thoracic inlet length (yellow line) ratio; tracheal inclination (blue lines) are presented. Note the carina located at the level of the third intercostal space.
Fig 3.
Dorsoventral projection of a 2 year old Saimiri boliviensis peruviensis.
The cardio-thoracic ratio is shown with the black lines; The left and right costophrenic angles are visualized with the white lines where the diaphragm meets the ribs. Note the presence of a clavicula (white arrow).
Fig 4.
Left-right lateral thoracic radiograph of a 4y old female Saimiri boliviensis peruviensis illustrating the measurement of the VHS (Vertebral Heart Score).
Fig 5.
Means and standard deviations of radiographic vertebral body lengths in 13 Saimiri spp.
Note the rapid increase in vertebral body length caudal to T9.
Table 1.
Summarized radiographic measurements (mm) and findings of the skeletal system of 13 healthy anesthetized Saimiri spp.
Table 2.
Radiographic findings (cm) of the cardiac system of healthy anesthetized Saimiri spp.
Table 3.
Radiographic anatomical measurements of the main vascular structures (mm).
Table 4.
Radiographic findings and measurements of the respiratory system.
RCA: Right costophrenic angle, LCA: Left costophrenic angle.