Research summary, original research, 2015

Reduction of Radiation Exposure in Atrial Fibrillation Ablation Using a New Image Integration Module: A Prospective Randomized Trial in Patients Undergoing Pulmonary Vein Isolation

Akbulak RÖ, Schäffer B, Jularic M, Moser J, Schreiber D, Salzbrunn T, et al.. Journal of cardiovascular electrophysiology. 2015

Read the original paper

In plain language

In a randomized trial of 60 patients undergoing pulmonary vein isolation, adding an image integration module to 3D mapping cut fluoroscopy time and dose substantially without lengthening procedures. Staff dose was not measured, though less fluoroscopy likely lowers exposure for the electrophysiology (EP) team.

At a glance

Type of study
Original research, Randomized trial
Who was studied
Patients, Electrophysiologists
Size
n = 60 patients
Summary based on
the abstract

What it found

  • Image integration module reduced mean fluoroscopy time compared with conventional 3D mapping.

    Key figures: 11.9 ± 2.1 to 7.4 ± 2.6 minutes (P < 0.0006)

  • Median fluoroscopy dose was nearly halved with the image integration module.

    Key figures: 882.9 to 476.5 cGycm(2) (P < 0.001)

  • Procedure time was not prolonged.

    Key figures: 140.7 ± 27.8 vs 140.8 ± 39.5 minutes; P = 0.851

  • Most of the radiation reduction occurred during 3D map creation.

  • No major complications; 80% arrhythmia-free at follow-up.

    Key figures: 80% at median 125.7 ± 45.6 days

Limits to keep in mind

Small single-trial sample of 60 patients with short follow-up; staff dose was not measured directly, so occupational benefit is inferred from patient fluoroscopy time and dose.

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.