Assessment of ultrasonography and computed tomography for the evaluation of unilateral orbital disease in dogs

Abstract

Ultrasonography and CT are valuable imaging modalities to assist in differentiating neoplastic from nonneoplastic unilateral orbital disease in dogs.

Automated tru-cut imaging-guided core needle biopsy of canine orbital neoplasia. A prospective feasibility study

“…Multiplanar reformation (MPR) post-processing techniques of both unenhanced and enhanced series were used to analyse site, shape, and appearance of the mass. Based on previously established imaging criteria (Boroffka et al, 2007;Lederer et al, 2015), orbital masses showing CT characteristics consistent with abscess or post-traumatic orbital hematoma were not sampled by tru-cut and instead excluded from this study. Technique, safety and diagnostic assessment of orbital biopsies The safest biopsy approach was based on the topography of the mass, as seen on orthogonal and multi-oblique CT-planes (Fig.…”

“…Orbital neoplasia should be differentiated from inflammatory conditions such as orbital abscess or orbital cellulitis. Orbital CT has been reported as a highly specific imaging test for differentiating inflammatory and neoplastic conditions in small animals (Boroffka et al, 2007;Wang et al, 2009;Armour et al, 2011;Lederer et al, 2015). Given the wide variety of diseases that can be encountered, advanced imaging modalities play a major role in the diagnostic and staging assessment of the lesion, guiding therapeutic decisions and monitoring or follow-up of treatment (Penninck et al, 2001;Collins et al, 2013).…”

“…Given the wide variety of diseases that can be encountered, advanced imaging modalities play a major role in the diagnostic and staging assessment of the lesion, guiding therapeutic decisions and monitoring or follow-up of treatment (Penninck et al, 2001;Collins et al, 2013). CT, MRI (Boroffka and Voorhout, 1999;Armour et al, 2011;Lederer et al, 2015) and ultrasound (US) have been demonstrated to be accurate in evaluating orbital disease (Mason et al, 2001;Boroffka et al, 2007). In addition, US has been demonstrated to be particularly useful in guiding interventional procedures throughout the body both in veterinary and in human patients (Phillips and Schneider, 1981;Gupta et al, 1999;Constantin et al, 2010;Orlandi et al, 2013;Spiess and Pot, 2013).…”

“…In addition, US has been demonstrated to be particularly useful in guiding interventional procedures throughout the body both in veterinary and in human patients (Phillips and Schneider, 1981;Gupta et al, 1999;Constantin et al, 2010;Orlandi et al, 2013;Spiess and Pot, 2013). However, imaging alone is not sufficient for a definitive diagnosis (Boroffka and Voorhout, 1999;Boroffka et al, 2007). To determine the nature of the mass and choose an appropriate treatment, pathological investigations remain necessary (Hendrix and Gelatt, 2000;Attali-Soussay et al, 2001).…”

“…To date, few articles in veterinary literature describe a US-CT multimodality approach for orbital mass sampling for morphologic examination (LeCouteur et al, 1982;Boroffka and Voorhout, 1999;Boroffka et al, 2007;Lederer et al, 2015). In this study, we investigate the feasibility and accuracy of imagingguided core needle biopsy in a population of dogs with orbital masses, using a US-CT combined system and different biopsy approaches.…”