Comparison of the performance between Frontier ASPECTS software and different levels of radiologists on assessing CT examinations of acute ischaemic stroke patients
To compare the performance of Frontier Alberta Stroke Program Early CT Score (ASPECTS) software with different levels of radiologists in assessing computed tomography (CT) examinations of patients with early acute ischaemic stroke (AIS), and to evaluate whether this software can improve the performance of rating by less experienced radiologists.
Objective: To explore the value of whole-brain perfusion parameters combined with multiphase computed tomography angiography (MP-CTA) in predicting the hemorrhagic transformation (HT) of ischemic stroke. Methods: A total of 64 patients with ischemic stroke who underwent noncontrast computed tomography, computed tomography perfusion imaging, and computed tomography angiography before treatment from August 2017 to June 2019 were included retrospectively. The perfusion parameters cerebral blood volume (CBV), cerebral blood flow (CBF), time to peak (TTP), mean transit time (MTT), time to maximum (Tmax), and permeability surfac...
The recent article from McCluskey et al “Radiological Eye Deviation as a Predictor of Large Vessel Occlusion in Acute Ischaemic Stroke” J of Stroke and Cerebrovasc Dis. 2019; 28:2318-23231 provides valuable information that may lead to early stroke intervention. They found that subjective visual detection of radiographic eye deviation on nonenhanced computed tomography (NECT) brain is strongly associated with large vessel occlusion (LVO). This compelling association may expedite patients for timely angiographic testing and endovascular therapy.
(American Roentgen Ray Society) A unique assessment of imaging-based recommendations for the administration of IV recombinant tissue plasminogen activator based on unenhanced brain CT scans, the results published ahead-of-print in this April article from the American Journal of Roentgenology (AJR) constitute a strong foundation for the development of mobile-based telestroke services because they increase neuroradiologist availability and the possibility of using reperfusion therapies in resource-limited countries.
CONCLUSION: In summary, the method applied to nCT scans performed in the acute stage of stroke provided robust and accurate information about brain lesions' location and size, as well as quantitative values. We found that nCT and VBQ analyses areeffective for identifying neural signatures of concomitant language impairments at the individual level, and neuroanatomical maps of aphasia at the population level. The signatures explicate the neurophysiological mechanisms underlying aetiology of the stroke. Ultimately, similar analyses with larger cohorts could lead to a more integrated multimodal model of behavior and brain ana...
Condition: Stroke Intervention: Other: Cardiac scanner Sponsor: Groupe Hospitalier Paris Saint Joseph Not yet recruiting
CONCLUSION: A high level of CEUS perfusion and increased serum FFA levels are indicative of vulnerable carotid plaques, which may be useful for the prediction of stroke in patients with carotid artery disease. PMID: 32039838 [PubMed - as supplied by publisher]
CONCLUSION: ANS control of the cardiac rhythm, as expressed in the HRV, was affected by damage to a large array of cortical and subcortical structures in the right hemisphere. In the left hemisphere only damage confined to a small set of subcortical structures was shown to exert a significant impact on the recorded HRV measures. In addition, VLSM analysis disclosed a different pattern of cerebral control over two widely used standard time-dependent measures of the HRV - SDNN and RMSSD, with the former being sensitive to damage in a much larger array of structures in both hemispheres. PMID: 32035088 [PubMed - as supplied by publisher]
Conclusion: The systematic review showed that male, age, diabetes, NIHSS, OTT, atrial fibrillation, post stroke, infarct size, and ischemic signs of CT were significantly correlated with hemorrhagic transformation (HT). PROSPERO Registration number: CRD42019127499.
ConclusionOur everyday clinical practice experience suggests 9.8 % of consecutive AIS patients present in the 4.5–9 h window and 2.2 % adhere to EXTEND neuroimaging eligibility criteria for IVT. Only 1.3% of AIS is eligible for IVT according to EXTEND neuroimaging and clinical eligibility criteria.