In managing orbital cellulitis, what is the recommended initial imaging technique?

The recommended initial imaging technique for managing orbital cellulitis is a CT scan. This imaging modality is particularly valuable due to its ability to provide clear and detailed cross-sectional images of the orbital structures, enabling the identification of complications such as abscesses, sinus disease, or involvement of the surrounding tissues and structures.

CT scans are also quicker to perform and can be more readily available in acute care settings than other imaging options. The rapid assessment provided by a CT scan allows for timely diagnosis, which is crucial given the potential for vision loss and the need for urgent treatment in cases of orbital cellulitis.

In contrast, X-rays are generally not as effective for evaluating soft tissue conditions like cellulitis, while ultrasound may be used in some cases for initial evaluation or guidance but does not provide the comprehensive view needed to assess the severity. MRI, although excellent for soft tissue visualization, typically comes after initial CT imaging due to its longer acquisition time and less availability in some emergency situations.