Atlas生成广义roi用于功能性神经成像

1993 IEEE Conference Record Nuclear Science Symposium and Medical Imaging Conference Pub Date : 1993-10-31 DOI:10.1109/NSSMIC.1993.373606

L. Thurfjell, C. Bohm

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引用次数: 2

摘要

在许多情况下，通过与与测量情况相对应的模拟数据进行比较，可以促进功能性神经成像数据的解释。计算机化的脑图谱用于提供有关被成像对象的空间范围的信息。该知识与表示为点扩展函数的成像设备的分辨率信息相结合，用于计算对象的模拟图像。该图像可以被视为广义感兴趣区域(ROI)，其中包含特定仪器所看到的物体信息。广义roi用于自动确定普通roi的边界，并提供恢复系数来补偿部分体积效应。模拟还可用于生成三维数据集，其中不同的摄取水平已分配给不同的解剖结构。

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Atlas generated generalized ROIs for use in functional neuroimaging

The interpretation of functional neuroimaging data can in many cases be facilitated by comparisons with simulated data corresponding to the measuring situation. A computerized brain atlas is used to provide information regarding the spatial extent of the object being imaged. This knowledge combined with information about the resolution of the imaging device expressed as point spread functions is used to calculate a simulated image of the object. This image can be regarded as a generalized region of interest (ROI) containing information of the object as viewed by the specific instrument. Generalized ROIs are used to automatically determine boundaries of ordinary ROIs and to provide recovery coefficients to compensate for partial volume effects. Simulations can also be used to generate three-dimensional data sets where different uptake levels have been assigned to different anatomical structures.<>

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1993 IEEE Conference Record Nuclear Science Symposium and Medical Imaging Conference

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