To evaluate the effects of music and maternal voice in children on sedation depth and sedative use during pediatric magnetic resonance imaging.

When the patients and their parents arrived in the magnetic resonance unıt about 30 minutes before the procedure, the anesthetist is obtained a medical history and carried out a physical examination and clinical assesment.

Patients were categorized into 3 groups: music, maternal voice and isolation. During the procedures,the patients in the music group listened to Vivaldi's The Four Seasons violin concertos by sound isolating headphones, whereas the patients in the isolation group wore the headphones but did not listen to music.

All patients were sedated by midazolam and propofol. During the procedure, an additional propofol was administered as required

Inclusion Criteria:

• ASA (American Society of Anesthesiologists) I-II

Exclusion Criteria:

• Patients with hearing impairment, distorted ear anatomy, recent organ or system deficiency, severe pulmonary and/or cardiovascular problems, intolerance to propofol, airway ab-normalities, or known psychiatric or mental problems were ex-cluded from the study.

De-identified individual participant data for all primary and secondary outcome measures will be made available.

Data will be available within 24 months of study completion

Data accept requests will be reviewed by an external independent Review Panel.