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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Improving Prognostic Evaluation by 4D CTA for Endovascular Treatment in Acute Ischemic Stroke Patients: A Preliminary

Ruoyao Cao1, Peng Qi2, Yinhong Liu3

  • 1Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, China.

Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association
|April 15, 2019
PubMed

Insights

Four-dimensional CT angiography (4D CTA) effectively assesses collateral circulation in patients with large vessel occlusion, predicting prognosis and guiding endovascular treatment decisions for better patient outcomes.

Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Assessing collateral circulation is crucial for predicting outcomes in acute ischemic stroke.
  • Traditional methods like single-phase CT angiography (sCTA) have limitations in comprehensively evaluating collateral status.

Purpose of the Study:

  • To evaluate the efficacy of 4D CT angiography (4D CTA) in assessing collateral circulation.
  • To determine the prognostic value of 4D CTA-based collateral scoring in patients undergoing endovascular treatment for large vessel occlusion.
  • To compare the predictive capabilities of 4D CTA versus sCTA.

Main Methods:

  • Retrospective analysis of 34 patients with unilateral anterior circulation large vessel occlusion.
  • Collateral circulation assessment using both sCTA and 4D CTA derived from CT perfusion scans.
  • Application of a modified collateral circulation scoring system (0-4 points) based on 4D CTA.
  • Logistic regression analysis to correlate collateral scores with prognosis (modified Rankin Scale score 0-2).

Main Results:

  • 4D CTA collateral circulation scoring was an independent predictor of prognosis (OR=.101, P=.042).
  • sCTA failed to predict prognosis (P=.214).
  • 4D CTA demonstrated high predictive efficacy for clinical prognosis (AUC=.936, P<.005).
  • Patients with good collaterals (4D CTA scores 3-4) showed significant benefit from endovascular treatment (P=.029).

Conclusions:

  • 4D CTA provides an effective and objective method for evaluating cerebral collateral status.
  • Accurate collateral assessment using 4D CTA aids in medical decision-making, particularly for endovascular interventional treatment planning.
  • 4D CTA can identify patients likely to benefit from endovascular therapy.
Abstract

Keywords:
Acute strokecollateral circulationcomputed tomography angiographyvascular lesions

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