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Updated: Jan 9, 2026
Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 4. Medical Imaging Procedures
Published on: October 3, 2016
Usage time and microbiological safety of multipurpose systems with anti-reflux valves in radiology: a review
Marcela Padilha Facetto Azevedo1, Letícia de Souza Moda-Monteiro1, Viviane de Cássia Oliveira1
1Universidade de São Paulo. Ribeirão Preto, São Paulo, Brazil.
Objectives:
to investigate scientific literature on time of use and microbiological safety of multipurpose systems with anti-reflux valves in magnetic resonance and computed tomography scan.
Methods:
scoping review conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews, structured with guiding question formulation; relevant study careful search/screening; systematic data organization/extraction; comparative analysis, and synthesis of results.
Results:
of the 276 studies found, 55 duplicates were excluded. After initial screening by reading titles and abstracts, 14 of 221 studies were selected, six of which were read in full and 12 were excluded because they did not answer the guiding question. The final set of selected studies comprised two scientific articles.
Final Considerations:
the multipurpose system with anti-reflux valves in magnetic resonance and computed tomography scan showed that there is only scientific evidence of absence of bacterial contamination for up to eight hours of use in radiology.
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