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Updated: Aug 27, 2026

3D Cine Magnetic Resonance Imaging of Respiratory Motion in Mechanically Ventilated Mice and Rats
Published on: September 19, 2025
[MRI of ventilated neonates and infants: respiratory pressure as trigger signal]
1Diagnostische Radiologie, Medizinische Hochschule Hannover. Lotz.joachim@mh-hannover.de.
Introduction:
Motivated by the difficulties often encountered in the setup of respiratory trigger in MR imaging of mechanical ventilated pediatric patients, a simplified approach in terms of time and reliability was sought.
Method:
With the help of a male-to-male Luer-Lock adapter in combination with a 3-way adapter the tube of the respiratory compensation below was fixed to the output channel for capnography of the airway filter. Ten patients (age 4 months to 6 years) were tested with spin echo imaging and either respiration compensation (T1-weighted imaging) or respiratory triggered (T2-weighted imaging).
Results:
A clear trigger signal was achieved in all cases. No negative influence on the quality or security of the mechanical ventilation of the patients was observed.
Summary:
The proposed adapter is safe, efficient and fast to install in patients undergoing MR imaging in general anaesthesia.
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