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Related Experiment Video

Updated: Dec 6, 2025

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Acute ischemic stroke diagnosis using brain tissue pulsations.

Jonathan Ince1, Caroline Banahan2, Sara Venturini3

  • 1Department of Cardiovascular Sciences, University of Leicester, Leicester, UK.

Journal of the Neurological Sciences
|October 12, 2020
PubMed
Summary
This summary is machine-generated.

Brain tissue pulsations (BTPs) are weaker and disrupted in acute ischemic stroke patients, according to this initial ultrasound study. Further research is needed to confirm these findings for clinical neuromonitoring.

Keywords:
BrainBrain tissue pulsationsStrokeTCDTranscranial DopplerUltrasound

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Area of Science:

  • Neurology
  • Cardiovascular Science
  • Medical Imaging

Background:

  • Healthy brain tissue pulsates with the cardiac cycle.
  • The impact of ischemic stroke on brain tissue pulsations (BTPs) is not well understood.
  • Novel methods for assessing BTPs in stroke patients are needed.

Purpose of the Study:

  • To investigate the clinical potential of measuring BTPs using ultrasound in acute ischemic stroke patients.
  • To characterize BTPs in acute ischemic stroke compared to healthy individuals.
  • To explore the feasibility of using Transcranial Tissue Doppler (TCTD) for BTP assessment.

Main Methods:

  • BTPs were measured in 24 healthy volunteers and 14 acute ischemic stroke patients using a novel Transcranial Tissue Doppler (TCTD) method.
  • A mixed-methods approach involved blinded analysis of recordings, including the development of an analysis checklist.
  • Quantitative analysis compared BTP characteristics between stroke patients and healthy controls.

Main Results:

  • Qualitative disruption of BTPs was identified in acute stroke patients.
  • Novice analysis using a checklist showed high sensitivity but low specificity for stroke detection.
  • Quantitative analysis revealed weaker BTPs in stroke patients compared to healthy participants.

Conclusions:

  • This study is the first to report altered BTP characteristics in acute ischemic stroke, showing weaker pulsations and waveform disruption.
  • The findings suggest potential for TCTD in neuromonitoring, but require validation in larger studies.
  • Further clinical evaluation is necessary to confirm the diagnostic utility and therapeutic monitoring potential of TCTD for stroke.