Abstract Details

Title The E-ASPECTS Improves The Performance Of Emergencists In The Evaluation Of Early Signs Of Ischemia

Topic Cerebrovascular Disease and Interventional Neurology

Presentation(s) P4 - Poster Session 4 (5:30 PM-6:30 PM)

Poster/Presentation
Number 4-013

Objective Asses the performance of the emergencists in the evaluation of ASPECTS score with
and without e-ASPECTS.

Background The evaluation of early signs of ischemia in non-contrast brain CT (NCCT)
is a challenge for professionals unfamiliar with their routine interpretation, such as
emergencits. The correct identification of areas where there is injury and that there is no
injury, allows the quick and accurate treatment of acute ischemic stroke. In order to assist
these professionals, the e-ASPECTS, a full automated, reliable, validated and fast tool,
determines by ASPECTS score which patients may be eligible for thrombolysis or
thrombectomy.

Design/Methods We selected 116 patients admitted in the stroke unit of Hospital de Clinicas of
the Federal University of Paraná between March 2017 and February 2018 with symptoms
of anterior circulation stroke. Patients with symptoms improvement, without control NCCT
or MRI or other final diagnoses were excluded. Two blinded emergencists and two
neuroradiologists for any clinical data evaluated the admission NCCT without e-ASPECTS.
After 30 days, they re-evaluated the imagens in a new randomized order, but now, they
were able to use the e-ASPECTS. The ASPECTS values attributed by the evaluators were
dichotomized in scores equal to 10, for images injury free, or different to 10, for those with any ischemic lesion, Sensitivity, specificity, Matthews correlation coefficients (MCC) and
ROC curves were generated for analysis before e after the software use.

Results The emergencits improves their performance when they could use
the e-ASPECTS, getting closer to the results obtained by neuroradiologists. In the initial
evaluation, MCC values for emergencits were -0.01 and 0.04, and, after the program
assistance, were 0.38 and 0.43, respectively, approaching the neuroradiologists (0.53 for
NR1 and 0.39 for NR2).

Conclusions The e-ASPECTS assist and improves performance of the stroke care front
line professionals in the evaluation early signs of ischemia in NCCT.

Authors/Disclosures
PRESENTER	No disclosure on file
	No disclosure on file
	No disclosure on file
Viviane H. Zetola, MD (Flumignano Institute of Medicine)	Dr. Zetola has nothing to disclose.
Marcos C. Lange, MD	No disclosure on file

��ɫ��

��ɫ��