Aim: We aimed to evaluate anesthesia practice for pediatric magnetic resonance imaging (MRI) according to the age groups and discuss the anesthetic management of the patients. We investigated the hospital sheets of all children who underwent MRI under anesthesia retrospectively. Material and Method: We divided the total of 5720 patients included in the study into two groups as Group S: school children (>6 years) and Group PS: preschool children (<6 years). We compared the two groups according to demographic characteristics, the anesthetic agent, additional anesthetic agent requirement, length of the sedation and the complications before and after the sedation. Results: Overall, the mean age of the patients was 4.6±3.8 years (6 months-14 years). In all procedural sedation, we used the ketamine-propofol combination. In Group S, mean ketamine and propofol doses were significantly higher than Group PS (p<0.05). There was no statistically significant difference in additional anesthetic agent requirement as Ketamine and Midazolam (p=0.38, p=0.42). The duration of anesthesia was significantly longer in preschool children(p<0.05). There were no severe complications in both groups. In 148 patients we observed hypoxia (2.58%) and pain in the injection area in 114(1.99%) patients with complications due to sedation. Discussion: In pediatric MRI patients, ketamine and midazolam are effective and safe choices for procedural sedation. For safety of the sedation, it must be done in a well-equipped environment and proper dose adjustment is required.