Research summary, original research, 2015

Combined Use of a Patient Dose Monitoring System and a Real-Time Occupational Dose Monitoring System for Fluoroscopically Guided Interventions

Heilmaier C, Kara L, Zuber N, Berthold C, Weishaupt D. Journal of vascular and interventional radiology : JVIR. 2015

Read the original paper

In plain language

In procedures by two interventional radiologists, adding real-time staff dose monitoring to patient dose monitoring was followed by lower patient dose (mean kerma-area product (KAP) 47 to 37 Gy·cm2). Operator and patient doses correlated strongly; this before-after design cannot prove cause.

At a glance

Type of study
Original research, Prospective cohort study
Who was studied
Interventional radiologists, Patients
Summary based on
the abstract

What it found

  • Total patient KAP fell when real-time occupational dose monitoring was added to patient dose monitoring, for both operators combined.

    Key figures: period 1, 47 Gy ∙ cm(2) ± 67/41 Gy ∙ cm(2); period 2, 37 Gy ∙ cm(2) ± 69/34 Gy ∙ cm(2); P < .05

  • Patient dose and occupational dose were strongly positively correlated.

    Key figures: r = 0.88

  • KAP declined in most procedure types during the combined-monitoring period.

    Key figures: 15 of 19 types of fluoroscopically guided interventionals (FGIs)

  • Mean operator dose per intervention was low with real-time monitoring.

    Key figures: 4.6 µSv mean accumulated dose per intervention; 0.24 mSv/h mean dose rate

  • The KAP reduction was also seen for each operator individually.

    Key figures: P < .05

Limits to keep in mind

Before-after comparison involving only two experienced interventional radiologists, without randomization or control for other changes over time; the number of procedures is not stated and operator dose reduction is inferred from correlation rather than a between-period comparison.

How this summary was made

ORSIF prepared this summary with AI assistance from the abstract 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.