What does a deflection angle less than or equal to 45 degrees typically signify about an object’s MR safety status?

A deflection angle less than or equal to 45 degrees typically indicates that the object is MR Safe. This angle is a measure of how much an object is influenced by the magnetic field. When an object shows a very small deflection (like an angle of 45 degrees or less), it suggests that it is either non-ferromagnetic or exhibits minimal magnetic susceptibility, making it unlikely to be attracted to the magnet. This low level of interaction with the magnetic field means that the object can safely be in the MRI environment without posing a risk to patients or staff.

Objects categorized as MR Safe are deemed to have no significant risk, and can be used safely within the MRI suite without any specific restrictions. This classification is essential for ensuring safety in the MRI setting, as it helps to prevent accidents involving ferromagnetic materials that can be pulled toward the magnet with considerable force.