Management of a sandbag accident in an MRI unit

Chee Hwee Lee, Ming Fang Lin, Wing P. Chan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Our aim is to report the cause and management of a ferromagnetic sandbag accident that occurred when an unconscious patient was sent for brain MRI. A 2-kg sandbag had been placed in the vicinity of his right groin to aid hemostasis after a femoral venous puncture for thrombocytopenia. His clothing and blanket had not been examined thoroughly before he was moved to the scanner and the sandbag went unnoticed. Its attraction to the scanner and adherence to the scanner rim resulted in a minor abrasion and bruise on the patient's face. We decided to manually remove some of the pellets from the sandbag after cutting the vinyl bag at one corner with a nonferromagnetic screwdriver. Piece-meal removal of about two-thirds of the pellets facilitated removal of the remaining pellets and the sandbag as a whole. The word "sandbag" is misleading and led to a lack of communication between the clinical team and the MRI staff and failure by the MRI staff to recognize a sandbag as a ferromagnetic object. Careful manual removal of small amounts of pellets can be used to avoid more time- and labor-intensive strategies to deal with a sandbag accident (e.g., magnet quench or ramp-down). Installation of a ferromagnetic material detector to screen patients before entering the scanner room is recommended.

Original languageEnglish
Article number8392
Pages (from-to)1187-1189
Number of pages3
JournalMagnetic Resonance Imaging
Volume33
Issue number9
DOIs
Publication statusPublished - Nov 1 2015

Fingerprint

Magnetic resonance imaging
Accidents
Jetties
Architectural Accessibility
Clothing
Ferromagnetic materials
Magnets
Groin
Contusions
Thigh
Hemostasis
Punctures
Abrasion
Thrombocytopenia
Brain
Communication
Personnel
Detectors
Unconscious (Psychology)

Keywords

  • Ferromagnetic material
  • Hazard
  • Magnetic resonance imaging (MRI)
  • Projectile incident
  • Safety

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging
  • Biomedical Engineering

Cite this

Management of a sandbag accident in an MRI unit. / Lee, Chee Hwee; Lin, Ming Fang; Chan, Wing P.

In: Magnetic Resonance Imaging, Vol. 33, No. 9, 8392, 01.11.2015, p. 1187-1189.

Research output: Contribution to journalArticle

Lee, Chee Hwee ; Lin, Ming Fang ; Chan, Wing P. / Management of a sandbag accident in an MRI unit. In: Magnetic Resonance Imaging. 2015 ; Vol. 33, No. 9. pp. 1187-1189.
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