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Diagnosing Early Ischemic Changes with the Latest-Generation Flat Detector CT: A Comparative Study with Multidetector

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Large-vessel occlusion (LVO) stroke requires rapid treatment, with mechanical thrombectomy (MT) being a key intervention.
  • Current protocols often involve multidetector CT (MDCT) for pre-procedural imaging, potentially increasing door-to-reperfusion times.
  • A one-stop management approach using flat detector CT (FDCT) as the primary imaging modality is being explored to streamline acute stroke care.

Purpose of the Study:

  • To compare the diagnostic performance of the latest-generation flat detector CT (FDCT) with multidetector CT (MDCT).
  • To evaluate the ability of both imaging modalities to predict functional outcomes in patients with LVO stroke undergoing MT.

Main Methods:

  • A monocentric study analyzed prospectively collected data from ischemic stroke patients with LVO eligible for MT.
  • All patients underwent both MDCT and FDCT imaging prior to MT.
  • The Alberta Stroke Program Early CT Score (ASPECTS) was assessed for both modalities, with comparisons made using correlation and Bland-Altman analyses, and predictive values for functional outcome were determined via ROC curve analysis.

Main Results:

  • FDCT provided sufficient diagnostic quality in 96% of the 25 analyzed patients.
  • Median ASPECTS scores showed strong correlation between MDCT and FDCT (r = 0.849, P < .001).
  • Both modalities demonstrated moderate predictive value for functional outcome, with FDCT showing comparable results to MDCT.

Conclusions:

  • ASPECTS determination using FDCT is feasible and shows no significant difference compared to MDCT.
  • FDCT imaging is a viable alternative to MDCT for acute stroke imaging prior to mechanical thrombectomy.
  • Implementing FDCT can potentially reduce door-to-groin times, thereby improving patient outcomes in LVO stroke management.