MRI Safety
What is considered the Main Magnetic Field? - Answer--Static Magnetic Field
When MRI safety guidelines became available - Answer--When 6 year old boy was killed when an unsafe
oxygen tank was taken into MRI suite
-ACR put together expert panel to produce guidelines
-Not formal standards (just guidelines)
-Published in 2002
Are there adverse biological effects of extended exposure to MRI? - Answer-No, but there have been
other accidents (contrast media, magnetic field, RF fields and burns)
What is the most effective way of preventing potential hazards in MRI and how is this screenig preferred
to be carried out? - Answer--Proper patient and personal screening
-All individuals who enter room must be screened (patients, students, techs, etc.)
-Recommended to do oral interview
Only some individuals going into MRI scan rooms must be screened before entering: - Answer--FALSE;
ALL INDIVIDUALS must be screened prior to entering
including students, patients, volunteers, family, MRI techs, nurses, custodial staff
What if the patient cannot screen themselves, can the patient still have the MRI, if not what is done? -
Answer--An immediate family member (who knows the patient's medical history) can answer the
screening questions
What if there is no family or the family doesn't know their medical history?
, -No family: screening films must be taken if there is no recent CT/x-ray images/ must checked by
radiologist to see if MRI scan is safe
If a patient cannot, for whatever reason, fill out the screening process, family can does so. However if no
family is present or medical history of the patient is unknown screening films are required. These
screening films required include: - Answer--2 view head
-Chest
-Abdomen
-Pelvis
T/F All implants are unsafe for MRI scans: - Answer-FALSE; not all images are unsafe
Safety can be determined by implant manufacturer, shellock, mrsafety.com
If the patient has an implant, what is done? - Answer--Not all implants are unsafe
-Should be checked on Shellock, mrsafety.com, or manufacturer's website
Item that poses no known hazards in all MRI environments: - Answer-MR Safe
Item that is known to pose a hazard in MRI environments and can be described using the terms (Unsafe
1 and Unsafe 2) is referred to as: - Answer-MRI Unsafe
Item that has been demonstrated to pose no known hazards in a specified MRI environment with
specified conditions of use is referred to as: - Answer-MR conditional
-MR strength
-Spatial Gradient
What is considered the Main Magnetic Field? - Answer--Static Magnetic Field
When MRI safety guidelines became available - Answer--When 6 year old boy was killed when an unsafe
oxygen tank was taken into MRI suite
-ACR put together expert panel to produce guidelines
-Not formal standards (just guidelines)
-Published in 2002
Are there adverse biological effects of extended exposure to MRI? - Answer-No, but there have been
other accidents (contrast media, magnetic field, RF fields and burns)
What is the most effective way of preventing potential hazards in MRI and how is this screenig preferred
to be carried out? - Answer--Proper patient and personal screening
-All individuals who enter room must be screened (patients, students, techs, etc.)
-Recommended to do oral interview
Only some individuals going into MRI scan rooms must be screened before entering: - Answer--FALSE;
ALL INDIVIDUALS must be screened prior to entering
including students, patients, volunteers, family, MRI techs, nurses, custodial staff
What if the patient cannot screen themselves, can the patient still have the MRI, if not what is done? -
Answer--An immediate family member (who knows the patient's medical history) can answer the
screening questions
What if there is no family or the family doesn't know their medical history?
, -No family: screening films must be taken if there is no recent CT/x-ray images/ must checked by
radiologist to see if MRI scan is safe
If a patient cannot, for whatever reason, fill out the screening process, family can does so. However if no
family is present or medical history of the patient is unknown screening films are required. These
screening films required include: - Answer--2 view head
-Chest
-Abdomen
-Pelvis
T/F All implants are unsafe for MRI scans: - Answer-FALSE; not all images are unsafe
Safety can be determined by implant manufacturer, shellock, mrsafety.com
If the patient has an implant, what is done? - Answer--Not all implants are unsafe
-Should be checked on Shellock, mrsafety.com, or manufacturer's website
Item that poses no known hazards in all MRI environments: - Answer-MR Safe
Item that is known to pose a hazard in MRI environments and can be described using the terms (Unsafe
1 and Unsafe 2) is referred to as: - Answer-MRI Unsafe
Item that has been demonstrated to pose no known hazards in a specified MRI environment with
specified conditions of use is referred to as: - Answer-MR conditional
-MR strength
-Spatial Gradient
