In plain language
In 140 percutaneous coronary intervention (PCI) and transcatheter aortic valve implantation (TAVI) procedures, a newer hybrid imaging system was associated with 26% lower patient dose-area product for PCI, with no significant change for TAVI. Staff dose was not measured directly.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 140 procedures
- Summary based on
- the abstract
What it found
After adjustment for patient weight and fluoroscopy time, dose-area product (DAP) for single-vessel PCI was 26% lower with the Siemens Artis Zeego hybrid system than with the Philips FD20.
Key figures: 55.6 (27.0-91.5) vs 77.6 (51.2-129.1) Gy.cm(2), P=0.03
Tomographic imaging with the Zeego did not significantly increase DAP for TAVI compared with the FD20.
Key figures: 98.1 (65.9-136.6) vs 112.4 (64.9-156.2) Gy.cm(2), P=NS
Fluoroscopy times were longer for TAVI than PCI on both systems.
Key figures: 23.5-24.4 vs 7.3-9.2mins, p<0.0001
The dose-reducing features reduced DAP more for PCI than for TAVI, attributed to additional cine acquisition needed for valve procedures.
Limits to keep in mind
Observational single-comparison study with small samples and different time periods per system; only patient dose-area product was measured, not staff dose.
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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.