Costanza, Dario (2023) Morphometric applications in Veterinary Diagnostic Imaging. [Tesi di dottorato]

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Abstract

The morphological diversity within the canine and feline species constitutes a daily challenge for veterinarians. In addition, to knowing specific or prevalent pathologies within a breed, the clinician must discern between normal anatomical variations and pathological findings. Diagnostic Imaging is particularly susceptible to such variations. The wide fluctuation among different breeds makes absolute measures such as length, height, and thickness unreliable, as linear measurements considered pathological in one breed may be considered within the normality in others. To address this breed-related variation, over the years, different morphometric indices, where the dimensions of a given organ or anatomical structure are normalized with respect to a different organ or anatomical structure, have been proposed. Nevertheless, fluctuations within the proposed normal values are observed. Consequently, attempts have been made to establish narrower reference intervals using samples consisting of specimens of the same breed or breeds with overlapping morphological features. This thesis addresses different topics linked by the common thread of morphometric applications in small animals Diagnostic Imaging. The thesis is structured in two different parts. The introduction illustrates the various morphotypes of canines and felines created through human selection, the specific pathologies resulting from this process relevant to the research aims, and the most frequent morphometric measurements performed during ultrasonographic, radiographic, and computed tomographic exams of canine and feline patients. The second part illustrates the results presented as journal articles or conference contributions.

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