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MRI safety. Zulmarie Roig , MD Chief of MRI, NSMC Courtesy of Stacy Kimball RTR(MR), MM. Courtesy of Stacy Kimball RTR(MR), MM. DANGER!!!!! The Magnet is ALWAYS ON !. Courtesy of Stacy Kimball RTR(MR), MM. FDA.

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mri safety

MRI safety

ZulmarieRoig, MD

Chief of MRI, NSMC

Courtesy of Stacy Kimball RTR(MR), MM

danger the magnet is always on
DANGER!!!!!The Magnet is ALWAYS ON !

Courtesy of Stacy Kimball RTR(MR), MM


According to the Alert, the Food and Drug Administration (FDA) has received nearly 400 reports of MRI-related accidents over the past decade. More than 70 percent of accidents were burns, while 10 percent of injuries occurred when metal objects such as ink pens, cleaning equipment and oxygen canisters have become "missiles" when pulled into the magnetic field of the scanner.

Courtesy of Stacy Kimball RTR(MR), MM

outcome of missile effect
Outcome of Missile Effect

Courtesy of Stacy Kimball RTR(MR), MM

other accidents
Other Accidents

Stacy Kimball RTR(MR), MM


Stacy Kimball RTR(MR), MM

mri safety zones
MRI safety zones
  • Zone 1: General Public: Front reception area
  • Zone 2: Unscreened MRI patients: Front reception area, where unscreened MRI patients wait for their examinations.
  • Zone 3: Screened MRI patients, visitors, and personnel: Screened by a technologist, technologist aide, or MRI nurse prior to entering this zone. Zone is secured by a door which only MRI staff members can let patients and visitors through.
  • Zone 4: Screened MRI patients under constant direct supervision of trained MRI personnel: Is the magnet room. All patients, escorts, and visitors must pass the MRI screening. Anyone who enters Zone 4 must be escorted by an MRI Technologist, MRI Nurse or Technologist Aide.
Implants and metallic devices will not enter the magnetic field strength area beyond Safety Zone III
  • Pacemakers
  • Implantable defibrillators
  • Magnetic sphincters
  • Implantable neuro-stimulators
  • McGee Stapedectomy piston prosthesis
  • Intraocular foreign body.
  • Metallic devices: Infusion pumps
  • Metallic Heart Valve
  • Retained Internal Pacing Wires (post cardiac surgery)
  • External fixators orthopedic hardware
  • Endoscopy video capsules
researched and documented before qualifying for and mri
Researched and documented before qualifying for and MRI
  • Stents/Filters/Coils and Vascular Grafts Renal Transplant Clips
  • Cerebral aneurysm clips
  • Certain dental implants
  • Certain ocular implants
  • Vascular Clips (endoscopy clips)
  • Middle Ear Prosthesis
  • Cochlear Implants
  • Accident involving metal in the eye
  • Intra-uterine devices, IUD.
  • Transdermal patches
ferromagnetic objects must never enter the mri scan room
Ferromagnetic Objects must NEVER enter the MRI scan room

Buffing machines

Chest Tube stands

Clipboards or patient charts



Hearing Aides

ID badges


Medical Gas cylinders


Nail Clippers of files

Oxygen Cylinders

Pulse oximeters

Pace makers


Medication patches


Paper clips

Pens and Pencils

IV pumps

IV poles

Prosthetic Limbs


Sandbags (with metal filings)

Steel shoes





Vacuum cleaners


Wheel chairs


Before undergoing an MR procedure must remove:
    • all removable metallic personal belongings and devices on or in them (e.g., watches, jewelry, pagers, cell phones, body piercings [if removable], contraceptive diaphragms, metallic drug delivery patches, cosmetics containing metallic particles [such as eye make-up], and clothing items that may contain metallic fasteners, hooks, zippers, loose metallic components, or metallic threads).
    • Patients are required to wear a gown without metal fasteners/hospital gowns without snaps.
scan room
Scan room
  • Hearing protection
  • Ocular screening(implants, metallic FB)
acoustic injury
Acoustic Injury

Ear Protection

oxygen tanks
Oxygen Tanks

GREEN oxygen tanks are NOTMRI compatible

NEVERbring a GREEN tank into a MRI room or near the MRI machine under ANY circumstance.

SILVER oxygen tanks ARE MRI compatible

equipment for mri
Equipment for MRI

All equipment for MRI is labeled “MRI Compatible”. This SPECIFIC equipment can go into the MRI room. The technologist will decide what can go into the room.


Objects can HEAT during a MRI Scan

Surgical staples

Lead wires


External devices

Patient touching the bore of the magnet with bare skin

nephrogenic systemic fibrosis
Nephrogenic systemic fibrosis
  • Rare and serious syndrome that involves fibrosis of skin, joints, eyes, and internal organs.
  • The first cases were identified in 1997.
  • Cause is not fully understood.
  • Evidence to suggest that it is associated with exposure to gadolinium (with gadolinium-based MRI contrast agents being frequently used as contrast agents for magnetic resonance imaging) in patients with severe kidney failure.
how can we help prevent this disease
How can we help prevent this disease?

Asking these patients the following questions both when scheduling and screening patients.

ACR recommendationsNew recommendations for screening These are the questions which need to be asked to EVERY patient.
  • Patients over the age of 60
  • History of renal disease (including one kidney, kidney transplant, kidney tumor or kidney mass).
  • History of “Hypertension” (if patient is undergoing treatment for hypertension).
  • History of diabetes mellitus: type I and type II
  • If the patient receiving dialysis? Proceed with the Policy : MRI Exams for DIALYSIS Patients.
  • Patients in Acute Renal Failure/Insufficiency, peritoneal dialysis or severe liver failure/pre/post liver transplant will NOT receive a contrast MRI regardless of GFR value. These patients will be decided on a case by case basis by the Radiologist.
questions for you
Questions for you??

Are Ferromagnetic objects MRI compatible? T or F

If I have a pacemaker I can enter the MRI scan room. T or F

Green oxygen tanks are MRI compatible? T or F

I have to wear hearing protection in the MRI scan room. T or F

What kind of wheelchair or stretcher can enter the MRI room?___________ .

Codes are performed outside the MRI suite. T or F

I will be screened before entering the MRI suite T or F


Stacy Kimball – Chief MRI Technologist

Office 978-573-3136

Partners Page 73742

[email protected]

Site Leaders

Lennie Chasse- Salem Campus 978-573-3151


Reference Manual for Magnetic Resonance Safety, Implants, and Devices yearly edition is located in each control room for reference, and for online support
  • Mag Resource ( or within a Partners approved implant search list.


Pictures from GE medical and