MRI Brain Indications Quiz

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Questions and Answers

Which of the following is NOT an indication for an MRI brain scan?

  • Transient ischaemic attack (TIA) (correct)
  • Loss of consciousness
  • Headaches
  • Cognitive decline

Which of the following is a contraindication for an MRI brain scan?

  • Cerebrovascular attack (CVA) (correct)
  • Metallic foreign body in the eye
  • Pregnancy
  • Ataxia

Which of the following should be removed before entering the MRI scanner room?

  • Hairpins (correct)
  • Keys
  • Jewellery
  • Coins

Which of the following is true regarding the use of gadolinium in MRI scans?

<p>Gadolinium should be given to the patient if GFR is &gt; 30 (D)</p> Signup and view all the answers

What is the recommended dose of gadolinium DTPA injection for adults, children, and infants?

<p>0.2 mmol/kg (D)</p> Signup and view all the answers

Which of the following is a suggested protocol for positioning during an MRI brain scan?

<p>Position the head in the head coil and immobilize with cushions (A)</p> Signup and view all the answers

When planning the axial slices for an MRI brain scan, what should the angle of the position block be in the coronal plane on a tilted head?

<p>Perpendicular to the line of the 3rd ventricle and brain stem (A)</p> Signup and view all the answers

Which of the following is a contraindication for an MRI scan?

<p>Having a cardiac pacemaker (A)</p> Signup and view all the answers

What is the advantage of using MRI over CT?

<p>MRI does not use ionizing radiation (C)</p> Signup and view all the answers

What is the role of the MR Safety Officer (MRSO)?

<p>To execute safety procedures and practices (C)</p> Signup and view all the answers

Which organization provides testing and board certification for MRMD, MRSO, and MRSE positions?

<p>American Board of Magnetic Resonance Safety (ABMRS) (C)</p> Signup and view all the answers

Which of the following is NOT a category for medical devices and implants in terms of MRI safety?

<p>MR-Approved (C)</p> Signup and view all the answers

Which type of implants are generally safe from attraction and torque forces produced by the magnetic field?

<p>Titanium and its alloys (A)</p> Signup and view all the answers

What is the primary safety concern related to MRI and metallic medical implants?

<p>Implant heating by absorbing RF energy (D)</p> Signup and view all the answers

Which of the following is a potential risk associated with MRI scans?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of using ferromagnetic detection devices in radiology departments?

<p>To reduce the risk of projectile accidents (B)</p> Signup and view all the answers

Which of the following is NOT a proven risk of an MRI scan?

<p>Biological harm (C)</p> Signup and view all the answers

What can cause peripheral nerve stimulation during an MRI scan?

<p>The rapid switching on and off of magnetic field gradients (C)</p> Signup and view all the answers

Flashcards

Non-indication for MRI

Transient ischaemic attack (TIA) is not an indication for an MRI brain scan.

MRI Contraindication: CVA

Cerebrovascular attack (CVA) is a contraindication for an MRI brain scan.

MRI: Remove Hairpins

Hairpins must be removed before entering the MRI scanner room.

Gadolinium and GFR

Gadolinium should be given to the patient if GFR is > 30.

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Gadolinium Dosage

The recommend dose of gadolinium DTPA injection for adults, children, and infants is 0.2 mmol/kg.

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MRI Brain Positioning

Position the head in the head coil and immobilize with cushions.

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Axial Slice Angle

Perpendicular to the line of the 3rd ventricle and brain stem.

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Pacemaker & MRI

Having a cardiac pacemaker contraindicates an MRI scan.

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MRI vs. CT

MRI does not use ionizing radiation.

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MR Safety Officer (MRSO)

To execute safety procedures and practices.

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MRI Safety Board

American Board of Magnetic Resonance Safety (ABMRS).

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MRI Device Categories

MR-Conditional, MR-Safe, MR-Unsafe.

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Safe Implants: Titanium

Titanium and its alloys are generally safe from attraction and torque forces.

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Implant Heating Risk

Implant heating by absorbing RF energy.

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Potential MRI Risks

All of the above (hearing damage, burns to the skin, and projectile injuries).

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Ferromagnetic Detection

To reduce the risk of projectile accidents.

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Unproven MRI Risk

Biological harm is NOT a proven risk of an MRI scan.

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Peripheral Nerve Stimulation

The rapid switching on and off of magnetic field gradients.

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