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Related Experiment Video

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Automated ASPECTS in Acute Ischemic Stroke: A Comparative Analysis with CT Perfusion.

V K Sundaram1, J Goldstein1, D Wheelwright2

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AJNR. American Journal of Neuroradiology
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Automated ASPECTS software demonstrated excellent agreement with expert consensus and CTP-CBV ASPECTS, offering a standardized approach to reduce variability in assessing early ischemic changes in stroke patients.

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging Analysis

Background:

  • Automated ASPECTS (Alberta Stroke Program Early CT Score) has the potential to reduce interobserver variability in identifying early ischemic changes.
  • Assessing early ischemic changes is crucial for stroke management and treatment decisions.

Purpose of the Study:

  • To evaluate the performance of an automated ASPECTS software.
  • To compare automated ASPECTS with neuroradiologist assessments and CTP-CBV ASPECTS.

Main Methods:

  • 58 anterior circulation stroke patients with NCCT and CTP were included.
  • ASPECTS were assessed by two neuroradiologists (NCCT), one neuroradiologist (CTP-CBV), and automated software.
  • Data were dichotomized and analyzed for agreement and correlation with infarct volume.

Main Results:

  • Automated ASPECTS showed excellent agreement with consensus reads (κ=0.84) and CTP-CBV ASPECTS (κ=0.84).
  • High intraclass correlation coefficients were observed for both raw (0.84) and dichotomized (0.94) scores.
  • Automated scores correlated significantly with final infarct volume (r=-0.66).

Conclusions:

  • Automated ASPECTS software performs comparably to expert consensus and CTP-CBV ASPECTS.
  • Automated ASPECTS can standardize reporting and minimize interpretation variability in stroke imaging.
  • This technology holds promise for improving the consistency of early ischemic change assessment.