Magnetic Resonance Imaging and Computed Tomography Imaging Sedation

Magnetic resonance imaging (MRI) and computed tomography (CT) are among the most common procedures to require some level of pediatric sedation. Although painless, they necessitate immobility for adequate imaging quality. Many children can complete these diagnostic procedures without sedation, and this should be encouraged. If sedation medications are needed, propofol is commonly used to administer deep sedation for these procedures given its fast induction and recovery times, but particularly careful ventilation monitoring with capnography is important for the sedation provider who is physically separated from the patient in the MRI suite. Dexmedetomidine use is increasing in both MRI and CT sedation; its advantages are maintenance of airway tone and possible neuroprotective effects, but its disadvantages are longer induction and recovery times. Safety, efficacy, and efficiency should be carefully considered when coordinating sedation care for MRI and CT procedures.