Using X-ray Energy Information in CT Measurement of a Phantom with an Al Region
Using X-ray Energy Information in CT Measurement of a Phantom with an Al Region
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在具有 Al 区域的体模的 CT 测量中使用 X 射线能量信息
DOI：
10.1080/18811248.2011.9711684
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发表时间：
2011
影响因子：
1.2
通讯作者：
H. Onabe
中科院分区：
文献类型：
--
作者：
Yuko Minami;Ryo Imamura;I. Kanno;Masahiko Ohtaka;M. Hashimoto;K. Ara;H. Onabe
本作者已在含有碘造影剂的丙烯酸模型上研究了使用 X 射线能量信息的 X 射线计算机断层扫描 (CT)。然而，要观察人体，就必须考虑骨骼。在本文中，CT 测量是在具有碘和铝区域的模型上进行的，该模型被用作骨骼的替代品。采用滤波反投影方法和最大似然期望最大化方法进行图像重建。
X-ray computed tomography (CT) using X-ray energy information has been studied by the present authors on acrylic phantoms containing an iodine contrast medium. To observe a human body, however, it is necessary to consider the bone. In this paper, CT measurements were made on a phantom with regions of both iodine and aluminum, which was used as a substitute for the bone. A filtered back-projection method and a maximum likelihood-expectation maximization method were employed for image reconstruction.