WEBVTT
Kind: captions
Language: en

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First, part one,

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I will introduce Lesional Segmentation in Acute Ischemic Stroke Patients

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Cerebrovascular disease is one of the leading causes of acute mortality and chronic disability.

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The volume of infarct and white matter hyperintensities

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is associated with severity of acute ischemic stroke

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and correlates with clinical prognosis

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and the effect of endovascular therapy.

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A rapid and reliable method of determination of volume of acute infarct

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will help predict the prognosis

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This slide is showing Subjects and Image Acquisition.

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The diffusion weighted imaging (DWI) is more sensitive

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than other magnetic resonance imaging (MRI) modalities to small water diffusion changes

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in the acute ischemic brain,

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especially within 48 hours of the infracts.

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We aimed to design a DWI-based computer-assisted method

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to provide doctor a prompt

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and accurate determination of the volumes of acute cerebral infarct.

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The operation of this method is based on the histographic characteristic

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of the output clusters of a fuzzy C-means (FCM) clustering.

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Additional measures were taken to ensure the accuracy of infarct detection,

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including discriminating infarcts from
artifacts due to magnetic inhomogeneity

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by incorporating the histographic information in the apparent diffusion coefficient (ADC) map.

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It's meaning ADC map.

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Landseed Hospital has been participating in the nationwide Taiwan Stroke Registry,

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which prospectively registered patients with stroke onset within 10 days.

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For this study, we recruited 22 patients with acute cerebral infarction and MRI examinations.