Automatic detection of ischemic stroke using higher order spectra features in brain MRI images

RAJENDRA ACHARYA, U., MEIBURGER, Kristen M., FAUST, Oliver, EN WEI KOH, Joel, LIH OH, Shu, CIACCIO, Edward J., SUBUDHI, Asit, JAHMUNAH, V. and SABUT, Sukanta (2019). Automatic detection of ischemic stroke using higher order spectra features in brain MRI images. Cognitive systems research, 58, 134-142.

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Abstract The gravity of ischemic stroke is the key factor in deciding upon the optimum therapeutic intervention. Ischemic stroke can be divided into three main groups: lacunar syndrome (LACS), partial anterior circulation syndrome (PACS), and total anterior circulation stroke (TACS), where the corresponding severity is mild, medium, and high, respectively. Herein, a unique method for the automatic detection of ischemic stroke severity is presented. The proposed system is based upon the extraction of higher order bispectrum entropy and its phase features from brain MRI (Magnetic Resonance Imaging) images. For classification, which is used to establish stroke severity, a support vector machine was incorporated into the design. The developed technique effectively detected the stroke lesion, and achieved a sensitivity, specificity, accuracy, and positive predictive value equal to 96.4%, 100%, 97.6% and 100%, respectively. The results were obtained without the need for manual intervention. This design is advantageous over state-of-the-art automated stroke severity detection systems, which require the reading neuroradiologist to manually determine the region of interest. Hence, the method is efficacious for delivering decision support in the diagnosis of ischemic stroke severity, thereby aiding the neuroradiologist in routine screening procedures.

Item Type: Article
Additional Information: ** Article version: AM ** Embargo end date: 12-06-2021 ** From Elsevier via Jisc Publications Router ** Licence for AM version of this article starting on 12-06-2021: **Journal IDs: issn 13890417 **History: issue date 31-12-2019; published_online 12-06-2019; accepted 10-05-2019
Identification Number:
Page Range: 134-142
SWORD Depositor: Louise Beirne
Depositing User: Louise Beirne
Date Deposited: 19 Jun 2019 11:09
Last Modified: 18 Mar 2021 05:08

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