Related Experiment Video
Updated: Jul 12, 2026
Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
Published on: July 30, 2009
MRI examination and monitoring of pediatric patients under sedation
E Volle1, W Park, H J Kaufmann
1MRI Unit, Institute of Pediatric Radiology and Neuroradiology, Poststrasse 16, Hofapotheke, D-87439 Kempten, Germany.
Insights
Oral sedation with chlorprothixene, sometimes with added chloral hydrate, enabled successful pediatric MRI scans in 91% of young patients. Respiratory depression was minimal (0.5%), demonstrating a safe and effective sedation method for pediatric magnetic resonance imaging.
Area of Science:
- Pediatric Radiology
- Medical Imaging
- Sedation Pharmacology
Background:
- Pediatric magnetic resonance imaging (MRI) requires effective sedation for successful examinations.
- Traditional sedation methods can carry risks and may not always be sufficient.
- Optimizing sedation protocols is crucial for patient safety and diagnostic accuracy.
Purpose of the Study:
- To evaluate the efficacy and safety of oral chlorprothixene, with or without chloral hydrate, for sedating pediatric patients undergoing MRI.
- To determine the success rate of MRI examinations using this sedation protocol.
- To assess the incidence of adverse events, specifically respiratory depression.
Main Methods:
- A cohort of 780 pediatric patients (1 day to 8 years) received oral chlorprothixene, with chloral hydrate added in some cases.
- Sedation onset was monitored, with investigations commencing 50-120 minutes post-administration.
- Patients were continuously monitored using pulse oximetry.
Main Results:
- Successful MRI examinations on the first attempt were achieved in 91% (710/780) of patients.
- An additional 1-2 attempts were required for 70 patients.
- Respiratory depression was observed in only 0.5% (2/780) of patients, indicating a high safety profile.
Conclusions:
- Oral chlorprothixene, with or without chloral hydrate, is an effective and safe sedation strategy for pediatric MRI.
- This method significantly reduces the need for anesthesia in pediatric imaging.
- The high success rate and low incidence of adverse events support its routine use in pediatric radiology.
Abstract:
From April 1992 to May 1994, 780 patients aged from 1 day to 8 years were examined. Sedation of these patients was conducted by giving chlorprothixene orally and, in some cases, chloral hydrate had to be added. The patients were monitored with a pulse oxymeter. Investigations could begin after 50 -120 min. In 710 patients (91%) the first attempt to perform the examination was successful; 70 patients required one or two further attempts. Only two of the 780 patients (0.5%) showed evidence of respiratory depression. The total number of pediatric MRI examinations performed in 1 year is almost 1000. In the hands of an experienced pediatric radiologist these examinations can be performed entirely without anesthesia.
Related Concept Videos
01:24Magnetic Resonance Imaging
01:30Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
01:14Imaging 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...
01:21Imaging Studies for Cardiovascular System IV: CMRI
01:28Imaging Studies for Cardiovascular System V: CT
01:27Imaging Studies IV: Magnetic Resonance Imaging