In plain language
In a pediatric cardiac catheterization lab, a newer x-ray system was associated with about 57% lower patient dose area product than an older system, with similar image quality. Staff dose was not measured, though lower patient dose generally lowers scatter.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 762 patients
- Summary based on
- the abstract
What it found
After adjustment for body size, fluoroscopy time and procedure type, the newer AlluraClarity system was associated with a large reduction in patient dose area product across all procedures.
Key figures: 57.5% (95% confidence interval (CI) 51.5-62.8%, p < 0.001)
Median dose-area product (DAP) roughly halved with the new system compared with the older Allura Xper system.
Key figures: 8661 mGy cm2 vs 4523 mGy cm2 (p < 0.001)
Adjusted reductions varied by procedure type, from cardiac biopsies to device occlusions.
Key figures: 39.0% (95% CI 25.6-50.1%) to 67.6% (95% CI 61.2-72.8%)
Image quality scores did not differ significantly between systems.
Key figures: 4.3 ± 0.8 vs 4.4 ± 0.6, p = 0.62
Dose reductions did not significantly differ by patient weight category.
Limits to keep in mind
Single-centre before-after comparison of two non-randomized patient cohorts over different years; only patient DAP was measured, not staff dose.
Related research summaries
- Fluoroscopy-minimization strategy for catheter ablation of Supraventricular Tachycardia by wOmen OPerators: the STOOP Multicentre Registry (2026, Prospective cohort study)
- Two Central Nervous System Tumors in One Catheter Lab: Time to Rethink Radiation Protection (2026, Retrospective cohort study)
- Radiation Awareness for EVAR in Hybrid Operating Room: An Instant Operator Risk Chart (2021, Dosimetry measurement study)
- Utilization of a Radiation Safety Time-Out Reduces Radiation Exposure During Electrophysiology Procedures (2019, Prospective cohort study)
- Completely nonfluoroscopic catheter ablation of left atrial arrhythmias and ventricular tachycardia (2018, Case report or series)
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.