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Cerebral circulation insufficiency - correlation of CTA-visualized atherosclerotic lesions in extra- and intracranial

Katarzyna Gruszczyńska1, Jan Baron, Zbigniew Zieliński

  • 1Division of Diagnostic Imaging, Radiology Department, Medical University of Silesia, Katowice, Poland. kgruszczynska@poczta.onet.pl

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
|March 16, 2006
PubMed

Insights

Atherosclerotic lesions in extra- and intracranial arteries frequently co-occur in patients with cerebral circulation insufficiency. This suggests cervical and cerebral stenosis often happen together, impacting patient outcomes.

Area of Science:

  • Vascular imaging and neurology.

Background:

  • Cerebral circulation insufficiency is a significant health concern.
  • Atherosclerosis affects both extra- and intracranial arteries.

Purpose of the Study:

  • To analyze the co-occurrence of atherosclerotic lesions in extra- and intracranial arteries using CT angiography (CTA) in patients with cerebral circulation insufficiency.
  • To evaluate the correlation between the degree of atherosclerosis and clinical factors.
  • To assess the optimal CTA post-processing technique for intracranial stenosis evaluation.

Main Methods:

  • Extra- and intracranial CTA performed on 70 patients with cerebral circulation insufficiency symptoms.
  • Co-occurrence of lesions and correlations with sex, age, and symptoms analyzed.
  • Intracranial CTA results compared to a control group of 34 asymptomatic individuals.
  • Reconstruction techniques (MIP and MPR vs. MIP only) evaluated by two radiologists.

Main Results:

  • Concomitant extra- and intracranial atherosclerotic lesions found in 56% of patients.
  • Statistically significant correlation between the degree of stenosis at both arterial levels (p<0.00001).
  • Significant correlation between clinical symptoms and stenosis severity.
  • Higher consistency in evaluating intracranial stenosis using combined MIP & MPR compared to MIP only (p<0.00001).

Conclusions:

  • A statistically significant correlation exists between extra- and intracranial arterial stenosis in patients with cerebral circulation insufficiency.
  • Cervical and cerebral stenosis tend to occur concomitantly.
  • Combined MIP & MPR is the optimal CTA post-processing technique for evaluating intracranial arteries.
Abstract

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