An obese patient with bare skin touching the gantry bore is at risk for what condition?

The condition of concern for an obese patient with bare skin making contact with the gantry bore is proximity burning. Proximity burns can occur when the patient’s skin comes into direct contact with the equipment, particularly where there is a high level of electromagnetic forces and radiofrequency energy being emitted. The risk increases when there is excess tissue, such as in obese patients, as more surface area can come into contact with the magnet, creating a potential for friction and heat accumulation.

In MRI environments, equipment is designed to create a significant magnetic field, and the presence of conductive materials (or even fluids from the skin) can lead to localized heating. This is especially critical in cases where the patient cannot shift position easily or when layers of clothing or other insulating materials are minimal. Thus, patients should be instructed to avoid direct skin contact with the bore of the MRI scanner to prevent the potential for burns.

Understanding the risks associated with proximity burning is vital for ensuring patient safety during MRI procedures, highlighting the importance of thorough screening and preparation for patients with particular needs, such as those with obesity.