Related Experiment Video
Updated: Jul 24, 2025

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
Published on: July 30, 2009
Prospective, randomised comparison of two intravenous sedation methods for magnetic resonance imaging in children
Viktor Mark Brzózka1, Andrzej Jerzy Piotrowski2
1Ośrodek Pediatryczny, Centralny Szpital Kliniczny Uniwersytetu Medycznego w Łodzi, Poland.
Insights
Propofol and dexmedetomidine are suitable for pediatric MRI sedation. Propofol offers faster recovery, while dexmedetomidine requires fewer interventions during the procedure.
Area of Science:
- Pediatric Anesthesiology
- Radiology
- Pharmacology
Background:
- Pediatric magnetic resonance imaging (MRI) often requires sedation or anesthesia.
- No single method is universally accepted for sedating children for MRI.
- This study compares two common sedative agents in pediatric MRI.
Purpose of the Study:
- To compare the efficacy and safety of propofol versus dexmedetomidine for MRI sedation in children.
- To evaluate recovery times and the need for interventions during sedation.
Main Methods:
- A prospective, randomized trial involving 64 children aged 1-10 years undergoing MRI.
- Patients received midazolam and ketamine premedication.
- Randomization to either propofol or dexmedetomidine infusion for sedation.
Main Results:
- Both propofol and dexmedetomidine were found to be suitable for MRI sedation in children.
- Propofol administration resulted in a shorter recovery time compared to dexmedetomidine.
- Fewer interventions were required when dexmedetomidine was used for sedation.
Conclusions:
- Propofol and dexmedetomidine are effective options for pediatric MRI sedation.
- The choice between propofol and dexmedetomidine may depend on desired recovery speed and potential need for interventions.
Background:
Children usually need sedation or even anaesthesia for magnetic resonance imaging (MRI) studies. As there is no universally accepted method for this purpose we undertook a prospective, randomised comparison of propofol and dexmedetomidine in children aged 1 to 10 years.
Methods:
After Institutional Board approval and parents' informed consent 64 ASA status I or II children scheduled for MRI scan were enrolled. Patients were premedicated with intravenous (IV) midazolam (0.1 mg kg -1 ) and ketamine (1 mg kg -1 ) and randomised to propofol (P) or dexmedetomidine (D) group. A propofol bolus of 1 mg kg -1 followed by infusion of 4 mg kg -1 h -1 , or dexmedetomidine 1 µg kg -1 followed by 2 µg kg -1 h-1 infusion were used. Heart rate, SpO 2 and non-invasive blood pressure were monitored and recorded at 5 min intervals. Results were compared by means of standard statistical methods.
Results:
Both dexmedetomidine and propofol after premedication with ketamine and midazolam are suitable for MRI sedation, although propofol use results in shorter recovery time. Less interventions are needed when dexmedetomidine is used.
More Related Videos
14:52Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
Published on: January 13, 2018
10:26A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis
Published on: June 2, 2015
Related Concept Videos
Imaging Studies for Cardiovascular System IV: CMRI
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Magnetic Resonance Imaging
Parenteral Anesthetics: Overview
Imaging Studies IV: Magnetic Resonance Imaging
Imaging Studies for Cardiovascular System V: CT