pulse-ox probe and MRI

Q: Why pulse-oximetry probes should be temporarily removed while patient is in an MRI?

Answer: Pulse oximeter cables, which act as an antenna may generate electrical skin currents, and results in a full-thickness burn. Unfortunately, this episode occurs very quickly even before the patient feels it. 

Click the link on Reference # 1 to see the pictures of such MRI induced burns.

#radiology
#burn


References:

1. Sung SJ, Park YS, Cho JY. Full Thickness Burn on the Finger due to Pulse Oximetry during Magnetic Resonance Imaging in a Conscious Patient. Arch Plast Surg. 2016;43(6):612‐613. doi:10.5999/aps.2016.43.6.612. Weblink: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5122558/ (last accessed June 4, 2020)

2. Karoo RO, Whitaker IS, Garrido A, et al. Full-thickness burns following magnetic resonance imaging: a discussion of the dangers and safety suggestions. Plast Reconstr Surg. 2004;114:1344–1345

3. Dempsey MF, Condon B. Thermal injuries associated with MRI. Clin Radiol 2001; 56:457.