In plain language
In 347 transjugular intrahepatic portosystemic shunt (TIPS) patients at one center, ultrasound-guided portal vein puncture and newer flat panel systems were associated with lower patient dose-area product and shorter fluoroscopy time. Staff dose was not measured, though lower patient dose generally lowers scatter to the fluoroscopy team.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 347 patients
- Summary based on
- the abstract
What it found
Fluoroscopy-guided portal vein targeting in an image intensifier system had the highest patient dose-area product compared with ultrasound-guided puncture.
Key figures: Group I mean 360 ± 298 Gy cm2 vs Group II 217 ± 130 Gy cm2 (p = 0.002) vs Group III 129 ± 117 Gy cm2 (p < 0.001)
With ultrasound-guided puncture, a flat panel detector system gave lower dose-area product than an image intensifier system.
Key figures: p < 0.001
Fluoroscopy time was longer with fluoroscopic targeting than with ultrasound-guided puncture, but did not differ between the two ultrasound-guided groups.
Key figures: 25.78 ± 13.52 min vs 20.45 ± 10.87 min (p = 0.02) vs 19.76 ± 13.34 min (p < 0.001); Groups II vs III p = 0.73
Limits to keep in mind
Single-center retrospective comparison of non-randomized groups treated over different time periods (2007-2014), so operator experience and other changes may confound results. Only patient dose metrics were measured; staff dose was not assessed.
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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.