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Computed Tomography (CT) scan:
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Related Experiment Video

Updated: Jul 19, 2026

Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures

Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures

Published on: October 20, 2009

Anaesthesia for magnetic resonance imaging/computed tomography.

W Funk¹, K Taeger

¹Department of Anaesthesia, University of Regensburg, Regensburg, Germany. wolfgang.funk@klinik.uui-regensburg.de

Current Opinion in Anaesthesiology

|October 4, 2006

Summary

Structured sedation programs supervised by anesthesiologists can decrease the need for general anesthesia in MRI and CT scans. Chloral hydrate remains common despite side effects, with alternatives like propofol for specific patient groups.

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Area of Science:

Radiology
Anesthesiology
Pediatrics

Background:

General anesthesia is often required for pediatric and uncooperative patients undergoing MRI/CT scans.
Chloral hydrate is a commonly used sedative despite potential side effects.
Minimizing sedation and anesthesia is crucial for patient safety and efficient imaging.

Purpose of the Study:

To explore strategies for reducing the need for general anesthesia in radiological imaging.
To review alternative sedation methods and their efficacy.
To highlight techniques that improve patient immobility during scans.

Main Methods:

Review of current sedation practices for radiological procedures.
Discussion of anesthetic agents like chloral hydrate, thiopental, and propofol.
Consideration of imaging technique advancements (spiral CT, ultrafast MRI).

Main Results:

Structured sedation programs supervised by anesthesiologists can effectively reduce general anesthesia requirements.
Chloral hydrate is widely used but has side effects; rectal thiopental and IV propofol are alternatives for specific populations.
Advanced imaging techniques like spiral CT and ultrafast MRI shorten scan times, aiding immobility.

Conclusions:

Implementation of structured sedation programs is a viable strategy to decrease general anesthesia use in MRI/CT.
Careful selection of anesthetic agents and consideration of imaging technology are key to successful sedation.
Ensuring patient immobility is critical for advanced neuroimaging and interventional procedures.