Fig. 1

Slice addition technique. Quantification of the canine adrenal gland using the Amira 6.5 software program applying a slice addition technique (SAT). Figure 1.A: For volume and attenuation measurements, the sectional area of each adrenal gland was manually marked slice by slice in the sagittal image plane. During segmentation, vena and arteria phrenicoabdominalis were excluded from the measurements under visual control in the transversal and dorsal projection planes. Figure 1.B: Voxels assembled from the previous selection to form a three-dimensional illustration of the canine adrenal gland. Figure 1.C: Three-dimensional surface reconstruction of a left adrenal gland. Figure 1.D: Three-dimensional surface of a right adrenal gland created using the same imaging technique