Floyd Carey E, Kapadia Anuj J, Bender Janelle E, Sharma Amy C, Xia Jessie Q, Harrawood Brian P, Tourassi Georgia D, Lo Joseph Y, Crowell Alexander S, Kiser Mathew R, Howell Calvin R
Department of Radiology, Duke Advanced Imaging Laboratories, Durham, NC 27705, USA.
Phys Med Biol. 2008 May 7;53(9):2313-26. doi: 10.1088/0031-9155/53/9/008. Epub 2008 Apr 17.
This paper describes the implementation of neutron-stimulated emission computed tomography (NSECT) for non-invasive imaging and reconstruction of a multi-element phantom. The experimental apparatus and process for acquisition of multi-spectral projection data are described along with the reconstruction algorithm and images of the two elements in the phantom. Independent tomographic reconstruction of each element of the multi-element phantom was performed successfully. This reconstruction result is the first of its kind and provides encouraging proof of concept for proposed subsequent spectroscopic tomography of biological samples using NSECT.
本文描述了用于多元素体模的非侵入性成像和重建的中子激发发射计算机断层扫描(NSECT)的实施情况。介绍了获取多光谱投影数据的实验装置和过程,以及重建算法和体模中两个元素的图像。成功地对多元素体模的每个元素进行了独立的断层重建。这一重建结果尚属首次,为后续使用NSECT对生物样品进行光谱断层扫描的设想提供了令人鼓舞的概念验证。