In plain language
In 55 matched pairs of chronic total occlusion percutaneous coronary intervention (PCI) procedures, an angiographic system with noise reduction technology was associated with lower patient air kerma and similar image quality. Staff dose was not measured.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 110 procedures (55 propensity-matched pairs)
- Summary based on
- the abstract
What it found
Noise reduction technology was associated with lower cumulative air kerma at the interventional reference point than the standard system.
Key figures: 2.38 (1.80-3.66) vs. 3.24 (2.04-5.09) Gy, p = 0.035
Kerma area product showed a non-significant trend towards reduction with noise reduction technology.
Key figures: 161 (93-244) vs. 203 (136-363) Gycm2, p = 0.069
The efficiency index (fluoroscopy time per Gy) was better with noise reduction technology.
Key figures: 16.75 (12.73-26.27) vs. 13.58 (9.92-17.63) min/Gy, p = 0.003
Image quality was similar between systems.
Key figures: 4.39 ± 0.53 Standard vs. 4.34 ± 0.47 NRT, p = 0.571
Limits to keep in mind
Observational single-system comparison with propensity matching of only 55 pairs; only patient dose metrics were measured, not staff dose, and country and centre details are not given in the abstract.
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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.