Introduction to Approaches and Modalities in Postoperative Orbital Imaging
Determining if and when diagnostic imaging is required following ophthalmic and orbital surgery is very much an art. The primary radiological imaging modalities include radiography, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound. Each of these modalities has certain advantages and disadvantages as described below. Often the different imaging modalities serve complementary roles, and familiarity with each of these is important for optimal management. In many cases, the indications and suitable modalities are similar to those for preoperative imaging, and the ACR Appropriateness Criteria® orbits, vision and visual loss offers general guidelines. More detailed information is also provided in the subsequent chapters in this text. Ultimately, familiarity with the basic anatomy of the eye and orbit and the alterations that may result after treatment is critical for interpreting the imaging studies.
KeywordsOptical Coherence Tomography Central Corneal Thickness Ultrasound Biomicroscopy Subsequent Chapter Lacrimal Drainage System
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