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CN106687824B 图像处理装置、图像处理方法以及程序 失效 - 权利终止

图像处理装置、图像处理方法以及程序
摘要：
图像处理装置(1)具备：图像数据取得部(10)，取得脑的SPECT图像数据；脑区域ROI设定部(13)，在SPECT图像上设定脑区域ROI；纹状体ROI设定部(14)，在SPECT图像上设定纹状体ROI；直方图生成部(15)，生成其中横轴为计数值的等级、且纵轴为与所述等级对应的单位区域的频数的直方图；阈值决定部(16)，基于从脑区域ROI除去纹状体ROI得到的SPECT图像背景的计数值，决定用于判别出SPECT图像中的脑室和脑沟的阈值；区域判别部(17)，判别出计数值为阈值以下的区域和比阈值大的区域；以及SBR计算部(18)，除去阈值以下的区域，计算SBR(Specific Binding Ratio)。由此，在SBR的计算中，能够仅使用核医学图像数据并且消除脑室、脑沟的影响。
摘要（英）：

An image processing device (1) comprises: an image data acquisition unit (10) for acquiring SPECT image data of a brain; a brain-region ROI definition unit (13) for defining a brain-region ROI in the SPECT image; a striatum ROI definition unit (14) for defining a striatum ROI in the SPECT image; a histogram generation unit (15) for generating a histogram whose horizontal axis represents the class of counts and whose vertical axis represents the frequency of unit region for each class; a threshold determination unit (16) for, based on counts in the SPECT image's background which is the brain-region ROI except the striatum ROI, determining a threshold for distinguishing ventricles and sulci in the SPECT image; a region distinction unit (17) for distinguishing between a region whose number of counts is smaller than or equal to the threshold and a region whose number of counts is larger than the threshold; and an SBR calculation unit (18) for calculating an SBR (Specific Binding Ratio) with the exception of the region whose number of counts is smaller than or equal to the threshold. This allows for using only nuclear medicine image data to eliminate the influence of ventricles and sulci in the calculation of the SBR.

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