Imaging Techniques
(2014) Clinical Ophthalmic Oncology : Orbital Tumors — ISBN: [978-3-642-40492-4], p. 31-44, published
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- Abstract
- Ultrasonography, color Doppler imaging, CT, and MR imaging are the most important imaging tools for the clinician in the field of orbital oncology. Although orbital ultrasonography may provide good information about acoustic inner texture of an orbital lesion, it is difficult to differentiate normal from abnormal tissues. CT provides excellent detail of the eye, orbital soft tissues, and bony orbit and has an established role in the evaluation of orbital trauma and orbital diseases. Although CT and MR studies are complementary, MR imaging provides superior soft tissue contrast. Interpretation of imaging studies is facilitated by evaluating radiological characteristics such as anatomic location, appearance, content, post-contrast enhancement features, and bone characteristics. Moreover, orbital tumors can be classified into one of seven radiological patterns (well-circumscribed solid, ill-defined solid, circumscribed cystic, enlarged optic nerve, enlarged lacrimal gland, enlarged extraocular muscles, and anomalies of the bony orbit) to obtain reliable differential diagnosis.
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Citations
De Potter, P. (2014). Imaging Techniques. In Perry, Julian D ; Singh, Arun D (ed.), Clinical Ophthalmic Oncology : Orbital Tumors (p. p. 31-44). Springer-Verlag. https://doi.org/10.1007/978-3-642-40492-4_5