Impact of the ICRU/ICRP proposal on operational quantities during interventional procedures: Investigation through spectral measurements

In plain language

Measurements of scattered radiation in urology and cardiology theatres suggest the new International Commission on Radiation Units and Measurements (ICRU) 95 whole-body area quantity reads about half the current one, while skin and eye lens quantities barely change. This affects dosimeter calibration, not actual staff exposure.

At a glance

Type of study: Original research, Dosimetry measurement study
Topics: Dosimetry and monitoring Regulation and policy Eye lens and cataracts
Summary based on: the abstract

What it found

For whole-body exposure, the new ICRU 95 ambient dose was roughly half the current ambient dose equivalent at staff positions.
Key figures: ratios 0.52 (urology) to 0.59 (interventional cardiology)
Skin and eye lens quantities changed little under the new definitions.
Key figures: deviations ≤5% (skin) and ≤8% (eye lens)
Beam angulation and added shielding barely affected the ratios.
Key figures: variations below 5%
Ambient dosimeters could be recalibrated with a single procedure-specific factor; skin and eye lens dosimeter calibration may remain unchanged.
Current ambient dose equivalent overestimates effective dose about twofold in low-energy fluoroscopy fields.
Key figures: factor of two

Limits to keep in mind

Spectral measurements in only two theatres (urology and interventional cardiology) with one detector type; the abstract does not report the number of measurements or procedures, and results concern dosimetry quantities, not health outcomes.

Direct and indirect assessment: comparison of different methods to estimate staff equivalent dose to the lens during different interventional procedures (2026, Dosimetry measurement study)
Eye lens dose in interventional cardiology personnel in Vietnam: direct Hp(3) measurement, indirect method comparison, and fluoroscopy-time-based dose estimation (2026, Dosimetry measurement study)
Mailed dose record review of occupational dosimetry records among Japanese medical radiation workers: the OREMS Study (2026, Retrospective cohort study)
A dosimetry innovation using hybrid pixel detectors in interventional theatres (2026, Dosimetry measurement study)
Accidents of occupational exposure to ionizing radiation in radiology departments: risks, prevention, and management (2026, Narrative review)

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.