Lung motion correction on respiratory gated 3-D PET/CT images
Lung motion correction on respiratory gated 3-D PET/CT images
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DOI：
10.1109/tmi.2006.870892
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发表时间：
2006-04-01
影响因子：
10.6
通讯作者：
Schäfers, KP
中科院分区：
文献类型：
--
作者：
Dawood, M;Lang, N;Schäfers, KP
运动是正电子发射断层摄影（PET）/计算机断层摄影（CT）图像中的退化的来源。由于PET图像代表整个呼吸周期的信息总和，因此在CT图像的帮助下进行衰减校正可能导致放射性摄取的错误分期或定量，特别是在小肿瘤的情况下。我们提出了一种方法，避免这些困难的间接门控PET数据，并纠正它的运动与光学如何算法。所得到的数据集包含所有PET信息和最小运动，因此，允许更准确的衰减校正和量化。
Motion is a source of degradation in positron emission tomography (PET)/computed tomography (CT) images. As the PET images represent the sum of information over the whole respiratory cycle, attenuation correction with the help of CT images may lead to false staging or quantification of the radioactive uptake especially in the case of small tumors. We present an approach avoiding these difficulties by respiratory-gating the PET data and correcting it for motion with optical How algorithms. The resulting dataset contains all the PET information and minimal motion and, thus, allows more accurate attenuation correction and quantification.