What is the primary neuroimaging technique used for evaluating orbital fractures?

The primary neuroimaging technique used for evaluating orbital fractures is computed tomography (CT). CT scans are particularly effective in assessing bony structures due to their high spatial resolution. When assessing orbital fractures, CT provides clear images of the orbital bones, enabling the identification of any fractures, displacement, and associated complications, such as hematoma or enophthalmos.

CT scans are rapid, widely available, and particularly useful in emergency settings, making them the preferred choice for acute evaluations. The ability to obtain cross-sectional images also allows for detailed visualization of the orbit and surrounding tissues, which is crucial in treatment planning and assessment of injuries.

Other imaging techniques, like MRI, are not routinely used for evaluating bony injuries due to their lower resolution in detecting fractures and their longer acquisition times. While X-rays can be used to some extent, they provide a less comprehensive view of complex structures such as the orbit. PET scans are primarily utilized for functional imaging and would not be appropriate for assessing structural bone injuries like fractures.