Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cerebral infarctions with negative CT scans.

T Johansson

    European Neurology
    |January 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Computed tomography (CT) negative stroke infarctions often represent small lacunar strokes. These findings suggest limitations in CT scan resolution for detecting certain types of cerebrovascular events.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Precise Measurement of the Chromoelectric Dipole Moment of the Charm Quark.

    Physical review letters·2026
    Same author

    Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon-Antihyperon Pairs.

    Physical review letters·2026
    Same author

    Observation of Λ[over ¯]p→K^{+}π^{+}π^{-}π^{0} and Λ[over ¯]p→K^{+}π^{+}π^{-}2π^{0}.

    Physical review letters·2026
    Same author

    First Measurement of the D_{s}^{+}→K^{0}μ^{+}ν_{μ} Decay.

    Physical review letters·2026
    Same author

    Observation of the Electromagnetic Radiative Decays of the Λ(1520) and Λ(1690) to γΣ^{0}.

    Physical review letters·2026
    Same author

    Observation of a Threshold Enhancement in the π^{+}π^{-} Spectrum in ψ(3686)→π^{+}π^{-}J/ψ Decays.

    Physical review letters·2026
    Same journal

    Combined Olfactory Testing and Substantia Nigra Hyperechogenicity for Diagnostic Differentiation of Parkinson's Disease.

    European neurology·2026
    Same journal

    The Role of Stroke Severity in the Association between Hypoperfusion Intensity Ratio and Futile Reperfusion after Endovascular Treatment.

    European neurology·2026
    Same journal

    The Parkinsonism of Salvador Dalí.

    European neurology·2026
    Same journal

    Disorders of Arousal and Sleep-Related Hypermotor Epilepsy in Adults: A Challenging but Necessary and Critical Distinctive Diagnosis.

    European neurology·2026
    Same journal

    Sex-Specific Phenotypic Characteristics in Obstructive Sleep Apnea: A Comprehensive Analysis of Anthropometric, Hematological, and Metabolic Profiles Stratified by Disease Severity.

    European neurology·2026
    Same journal

    Historical and Clinical Analysis of a Case of Progressive Muscular Atrophy (1853-1871).

    European neurology·2026
    See all related articles

    Area of Science:

    • Neurology
    • Radiology
    • Medical Imaging

    Background:

    • Computed tomography (CT) is a primary imaging modality for acute stroke diagnosis.
    • Some ischemic strokes may not be detected by CT, especially early after symptom onset.
    • Distinguishing CT-negative infarcts from other neurological conditions is clinically important.

    Purpose of the Study:

    • To investigate the characteristics of stroke patients with negative CT scans.
    • To compare the risk factor profiles of CT-negative infarctions with CT-verified infarcts.
    • To identify potential underlying pathologies for CT-negative findings.

    Main Methods:

    • Study included 181 stroke patients with initial negative CT scans (performed >24h post-ictus).
    • Excluded 39 cases with pathological radionuclide uptake on scans.

    Related Experiment Videos

  • Compared 142 remaining CT-negative cases with CT-verified central and cortical infarctions.
  • Assessed risk factors including carotid lesions (isotope angiography) and atrial fibrillation.

    • Main Results:

    • CT-negative infarctions shared risk factor profiles similar to CT-verified central infarcts.
    • CT-negative cases showed fewer hemodynamically significant carotid lesions and less atrial fibrillation compared to cortical infarcts.
    • Pure motor hemiparesis was more frequent in the CT-negative group.
    • These findings suggest small lacunar infarcts, below CT resolution, are common in this cohort.

    Conclusions:

    • A significant proportion of CT- and radionuclide scan-negative cerebrovascular infarctions may be small lacunar infarcts.
    • CT imaging has limitations in detecting small infarcts due to resolution constraints.
    • Further investigation into advanced imaging techniques may be warranted for subtle ischemic lesions.