Research summary, original research, 2018

Image fusion using the two-dimensional-three-dimensional registration method helps reduce contrast medium volume, fluoroscopy time, and procedure time in hybrid thoracic endovascular aortic repairs

Ahmad W, Hasselmann HC, Galas N, Majd P, Brunkwall S, Brunkwall JS. Journal of vascular surgery. 2018

Read the original paper

In plain language

In 146 patients having thoracic aortic stent grafting, image fusion was linked to less contrast use and, in complex hybrid cases, shorter fluoroscopy and procedure times, but patient radiation dose (DAP) did not differ. Staff dose was not measured.

At a glance

Type of study
Original research, Retrospective cohort study
Who was studied
Patients
Size
n = 146 patients
Summary based on
the abstract

What it found

  • Image fusion was associated with less contrast medium in thoracic endovascular aortic repair (TEVAR) overall.

    Key figures: median 70 mL (IQR 50-101) vs 104 mL (IQR 69-168); P < .001

  • In hybrid TEVAR, fluoroscopy time was shorter with image fusion.

    Key figures: 9 minutes (IQR 6-13) vs 23 minutes (IQR 12-45); P < .005

  • In hybrid TEVAR, procedure time was shorter with image fusion.

    Key figures: median 162 min vs 213 min; P = .015

  • Radiation dose (dose-area product) did not differ between groups.

    Key figures: P = .37

  • In plain TEVAR, image fusion reduced contrast only; radiation exposure, procedure and fluoroscopy times did not differ significantly.

    Key figures: median 64 mL vs 98 mL; P = .003

Limits to keep in mind

Single-institution retrospective before-after comparison with small, unbalanced subgroups (25 vs 11 hybrid cases). Only patient dose indicators were reported; no staff dosimetry.

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.