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Extraction of brain regions for image diagnosis of Alzheimer-type Dementia based on atrophy progress speeds

机译:基于萎缩进展速度的脑区提取以诊断阿尔茨海默氏型痴呆

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We constructed an image diagnosis support system for Alzheimer-type Dementia that extracts temporal lobe regions and an intracranial region as regions of interest (ROI) from a T2-weighted MR frontal image and uses the cerebral atrophy rates at the ROI. In this paper, we specifically discuss extraction of brain regions and diagnosis support information based on atrophy speeds of the ROI. The proposed method comprises of three steps. Step 1: A first contour that approximates a shape of the temporal lobe region to a triangle is set and Balloon model is applied. Step 2: A temporal lobe AAM is constructed and it is applied to the result obtained in Step 1. Step 3: Intracranial region is extracted using temporal lobe regions detected in Step 2. We demonstrate the potential of our method using actual diagnosis images. Additionally, we calculate atrophy rates of the ROI to consider a possibility for diagnosis of ATD using atrophy progress speeds of the ROI.
机译:我们构建了针对阿尔茨海默氏型痴呆症的图像诊断支持系统,该系统从T2加权MR额叶​​图像中提取颞叶区域和颅内区域作为感兴趣区域(ROI),并在ROI处使用脑萎缩率。在本文中,我们专门讨论基于ROI萎缩速度的大脑区域提取和诊断支持信息。所提出的方法包括三个步骤。步骤1:设置将颞叶区域的形状近似为三角形的第一轮廓,并应用气球模型。步骤2:构建颞叶AAM,并将其应用于在步骤1中获得的结果。步骤3:使用在步骤2中检测到的颞叶区域提取颅内区域。我们使用实际诊断图像展示了本方法的潜力。此外,我们计算ROI的萎缩率,以考虑使用ROI的萎缩进展速度诊断ATD的可能性。

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