Wednesday, April 20, 2016

Q: All of the following are absolute contraindications for having Magnetic Resonance Imaging (MRI) except

A) Defibrillator (AICD)
B) Metallic foreign body
C) Deep brain stimulator (DBS)
D) Swan-Ganz catheter (PAC)
E) Implanted drug infusion device

Answer: E

The Objective of above question is to emphasize the need of understanding of absolute contraindications of MRI from very common conditions/devices in ICU like DBS, PAC and AICD. Though MRI technicians are thoroughly trained and all radiological departments have extreme scrutiny before initiating MRI, an ultimate responsibility falls on ordering physician. 

Aneurysm stents, implanted drug infusion devices, wire sutures, ocular prosthesis, penile prosthesis, joint prosthesis etc. are relative contraindications and if the benefit of obtaining MRI is higher than risks, they can be worked out between an ordering physician and a radiologist.

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