Modification of an anesthesia machine for MRI suite

Area of Science:

• Medical Engineering
• Anesthesiology
• Magnetic Resonance Imaging

Background:

• Anesthesia machines are critical for patient care during surgical procedures.
• The strong magnetic fields in Magnetic Resonance Imaging (MRI) suites pose a significant safety risk for standard medical equipment.
• Integrating anesthesia delivery within the MRI environment requires specialized, non-magnetic equipment.

Purpose of the Study:

• To describe the modification of a standard wall-mounted anesthesia machine to be nonmagnetic.
• To ensure the safe and effective operation of the modified anesthesia machine within an MRI suite.
• To evaluate the impact of the modified machine on MRI imaging quality.

Main Methods:

• Modification of a wall-mounted anesthesia machine to eliminate ferromagnetic components.
• Testing the nonmagnetic anesthesia machine at a defined distance from a 1.5 tesla MRI electromagnet.
• Assessing the functionality of the anesthesia machine's critical components post-modification.
• Evaluating the effect of the modified machine on MRI image quality.

Main Results:

• The wall-mounted anesthesia machine was successfully rendered nonmagnetic.
• The modified machine operated correctly at a distance of 1.8 meters from a 1.5 tesla electromagnet.
• No degradation of MRI imaging quality was observed when the modified anesthesia machine was present.

Conclusions:

• Modification of anesthesia machines for nonmagnetic properties is feasible and safe for MRI environments.
• The developed nonmagnetic anesthesia machine allows for integrated patient monitoring and anesthesia delivery during MRI procedures.
• This innovation enhances patient safety and expands the utility of MRI for procedures requiring anesthesia.