[Features of Debakey III aortic dissection after endovascular graft exclusion: evaluation with DSCT angiography]

Heng Shao1, Zhigang Yang, Sishi Tang

  • 1Department of Radiology, West China Hospital, Sichuan Univerrsity, Chsngdu 610041, China.

Insights

Dual-source CT angiography effectively evaluates aortic dissection prostheses after endovascular repair. DSCT angiography identified no stent issues but revealed endoleaks in some patients, with improved renal perfusion post-procedure.

Area of Science:

  • Vascular Surgery
  • Diagnostic Imaging
  • Cardiovascular Radiology

Background:

  • Debakey III aortic dissection poses significant challenges.
  • Endovascular graft exclusion is a treatment option.
  • Post-operative assessment of prosthesis and vascular features is crucial.

Purpose of the Study:

  • To evaluate prosthesis and vascular features of Debakey III aortic dissection.
  • To assess outcomes after endovascular graft exclusion using DSCT angiography.

Main Methods:

  • Retrospective analysis of 39 patients with Debakey III aortic dissection.
  • DSCT (Dual-source CT) angiography performed post-endovascular graft exclusion.
  • Evaluation of stent integrity, endoleaks, false lumen thrombosis, and aortic remodeling.

Main Results:

  • No stent fracture or migration observed in 39 patients.
  • Endoleaks occurred in 15 patients (Type I: 12, Type II: 2).
  • 17 patients had significant false lumen thrombosis; 1 showed complete false lumen absorption.
  • Renal perfusion improved in 9 of 15 patients with pre-operative abnormalities.
  • Aortic remodeling was more pronounced closer to the initial exclusion site.

Conclusions:

  • DSCT angiography accurately assesses prosthesis and vascular features post-endovascular repair for Debakey III aortic dissection.
  • The study highlights the utility of DSCT in evaluating treatment success and complications.