Research summary, original research, 2024

Radiating for Two: Quantifying Radiation Exposure to Pregnant Urologists During Percutaneous Nephrolithotomy

Song S, Amasyali AS, Jhang D, Clark T, Cheng KW, Park K, et al.. The Journal of urology. 2024

Read the original paper

In plain language

In a cadaver model of percutaneous nephrolithotomy (PCNL), a lead apron, low pulse rates and low-dose fluoroscopy each sharply reduced estimated uterine dose to the urologist, suggesting pregnant surgeons could keep operating under the 1 mSv fetal limit; this measures dose, not health outcomes.

At a glance

Type of study
Original research, Phantom or simulation study
Who was studied
Urologists, Phantom or simulation (no people)
Summary based on
the abstract

What it found

  • A 0.35-mm lead apron cut uterine dose by 94%; thicker aprons reduced dose further.

    Key figures: 94% (P < .001); 0.50 mm further 12%, 0.70 mm further 47%

  • Reducing pulse rate from 30 to 1 pps reduced uterine dose by 96%.

    Key figures: 96% (P < .001)

  • Low-dose fluoroscopy setting reduced uterine dose by 56%.

    Key figures: 56% (P < .001)

  • At conventional settings, the 1 mSv fetal limit would be reached after 12 PCNLs without lead or 189 with a 0.35-mm apron.

    Key figures: 12 PCNLs without lead; 189 PCNLs with 0.35-mm apron

  • Combining shielding with 1 pps and low-dose fluoroscopy allowed over 6000 cases below 1 mSv uterine exposure.

    Key figures: >6000 cases

Limits to keep in mind

Cadaver simulation with two cadavers and an ion chamber rather than real pregnant surgeons; case estimates assume 5 minutes of fluoroscopy per PCNL and single geometry.

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.