User's Manual

For China only: In 3-T systems medical supervision is required for
all patients according to IEC 60601-2-33 (2nd edition).
When persons (e.g. MR workers or patients) are exposed to the static
magnetic field, possible effects are dizziness, light-headedness, or
metallic taste, especially in 3-Tesla magnetic fields.
1 Ask the patient to lie still during the measurement.
2 Keep a sufficient distance to the magnet and avoid rapid
movements of the head.

CAUTION
Dizziness, light-headedness or metallic taste in the patient‘s
mouth during measurements and/or table movements in a 3-
Tesla magnetic field!
Reaction of fear by the patient
◆ Prior to the examination, inform the patient about the
possible occurrence of these symptoms.
Magnetic flux densities exceeding 0.5 mT can interfere with
electronic implants or other devices. The main magnetic field may
either affect or destroy electronic data carriers such as check or credit
cards, hard disks, ID cards with magnetic strips and/or magnetic
tapes, diskettes or pocket calculators, as well as RFID chips (Radio
Frequency Identification).
Safety instructions on RF and gradient fields
◆ Do not examine patients unable to communicate potential
overheating effects (e.g. small children, seriously ill, paralyzed,
unconscious, sedated, or handicapped patients).
Dangerous current loops may be generated when parts of the
patient's body touch. These loops may lead to burns or increase the
probability of stimulation.
Current loops are also generated when the patient's skin contacts the
tunnel lining or RF coil cables.
Dizziness during exposure
Device malfunctions
2.2.3
Patients at risk
Current loops and bore wall
contact
2 Safety
20
MR System | Operator Manual
Print No. M6-04401.621.02.02.02