In plain language
Across 861 cerebral aneurysm angiography and coiling procedures at 23 Korean hospitals, patient dose varied widely between centers; the authors propose reference levels of 144 Gy-cm2 (diagnostic) and 271 Gy-cm2 (coiling) dose-area product (DAP). Staff exposure was not measured.
At a glance
- Type of study
- Original research, Dosimetry measurement study
- Who was studied
- Patients
- Size
- n = 861 procedures
- Where
- South Korea
- Summary based on
- the full text
What it found
Proposed diagnostic reference levels (DRLs) (75th percentile DAP) for diagnostic cerebral angiography and aneurysm embolization.
Key figures: 144.2 Gy-cm2 (diagnostic) and 271.0 Gy-cm2 (therapeutic)
Therapeutic embolization had markedly higher mean patient dose indicators and fluoroscopy time than diagnostic angiography.
Key figures: DAP 218.8 ± 164.3 Gy-cm2; cumulative air kerma (CAK) 3365.7 ± 2205.8 mGy; fluoroscopy 51.5 ± 31.1 minutes
Mean patient dose indicators for diagnostic cerebral angiography.
Key figures: DAP 106.2 ± 66.4 Gy-cm2; CAK 697.1 ± 473.7 mGy; fluoroscopy 9.7 ± 6.5 minutes
Large between-hospital variation in dose for the same diagnostic procedure.
Key figures: mean DAP 51.9 to 247.6 Gy-cm2; fluoroscopy 3.5 to 18.6 minutes
Compared with previous reports, embolization had lower DAP and fewer frames but longer fluoroscopy time; diagnostic angiography doses were also lower than other studies.
Limits to keep in mind
Registry-based data from 23 selected high-volume Korean university hospitals over about three months, without assessment of procedure complexity; only patient dose indicators displayed by the angiography systems were collected (not peak skin dose), and no staff dose was measured.
Related research summaries
- A Study of Radiation Exposure and the Effects of Real-time Dosimetry System on Staff Safety in Neurointerventional Procedures (2026, Prospective cohort study)
- Assessment of Radiation Dose in Neurointerventional Procedures Using a Modern Digital Fluoroscopy System (2026, Dosimetry measurement study)
- Clinical Feasibility of Robotic-Assisted Endovascular Visceral Interventions (2026, Prospective cohort study)
- Fluoroscopy-minimization strategy for catheter ablation of Supraventricular Tachycardia by wOmen OPerators: the STOOP Multicentre Registry (2026, Prospective cohort study)
- Radiation exposure in interventional cardiology: Implications for patients and healthcare workers (2026, Dosimetry measurement study)
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.