Esaote O-scan eXP, User Manual

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10 / 48 Chapter 3
SPECIAL PRECAUTIONS: PATIENTS WITH METAL
OBJECTS IN THE BODY
The M.R. examination requires special precautions :
☛
for patients with surgical clips (haemostatic clips) or other
ferromagnetic implants labeled as MR Conditional
☛
for patients with implanted prosthetic heart valves labeled as MR
Conditional
☛
for patients with non-ferromagnetic metal implants labeled as MR
Conditional
☛
for patients who due to their professional activity or personal history
(e.g. war injuries), may have embedded ferromagnetic material or metal
fragments
☛
for patients with body tattoos or permanent (tattooed) eye-liner or
patients wearing cosmetics on their eyes and/or eyelashes
W a r n i n g
Always compare the marked fields conditions indicated by the implant
manufacturer inside its accompanying document, paying special
attention to the following values reported in this User Manual:
1) static magnetic field (see chapter 5, paragraph “Technical
Specification - Magnetic System”)
2) spatial gradient field (see chapter 5, paragraph “Technical
Specification - Dedicated Gradient System”)
3) maximum SAR (see current paragraph - “Operating Mode”) to
establish if the implant can be used safely within the controlled access
area.
The safety of an implant outside of the marked MR conditions is not
known.
All the implants labeled as MR Unsafe must not be examined and must
not enter the 0.5 mT restricted area.
W a r n i n g
Never examine patients with metal or ferromagnetic implants and
prohibit entry of the latter in the controlled access area, unless the
supervising physician has ascertained that they are MR Conditional.
The effect of eddy currents in large metal implants may cause local
heating of the body tissue.