In plain language
At one German interventional radiology department, showing interventional radiologists and assisting residents their dose in real time during procedures was associated with about 30-36% lower measured personal dose. This is a dosimeter result, not a health outcome.
At a glance
- Type of study
- Original research, Randomized trial
- Who was studied
- Interventional radiologists, Trainees
- Size
- n = 214 angiographic interventions
- Where
- Germany
- Topics
- Dosimetry and monitoringDose reduction techniquesTraining and educationSafety culture and compliance
- Summary based on
- the full text
What it found
Real-time visual dose feedback was associated with lower overall operator dose per procedure.
Key figures: median 3.67 to 2.36 μSv (-36%; p = 0.032)
Reduction was larger in therapeutic angiographies than in chemoembolizations.
Key figures: -58% (p = 0.005) vs -28% (p = 0.004)
Assisting physicians also had lower doses when the real-time display was used.
Key figures: median 12.33 to 8.67 μSv (-30%; p = 0.039)
In a 30-procedure substudy, training plus dosimeter without the display gave higher dose than groups using the display; adding training to the display gave no significant extra benefit.
Key figures: 48.59 μSv without display; p = 0.001 and p = 0.043
Experienced senior physicians also had lower doses with the display.
Key figures: mean 47.96 to 17.95 μSv (-63%; p = 0.0002)
Limits to keep in mind
Single-centre study with three operators, modest sample, and 11% of procedures excluded for technical reasons; dose measured only at chest over the apron, with no comparison to conventional dosimeters and no health outcomes, and the training substudy had only 10 procedures per group.
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How this summary was made
ORSIF prepared this summary with AI assistance from the full text of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.