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快速单光子发射计算机断层扫描II：第二代高分辨率动态单光子发射计算机断层扫描仪

FastSPECT II: A Second-Generation High-Resolution Dynamic SPECT Imager.

作者信息

Furenlid Lars R, Wilson Donald W, Chen Yi-Chun, Kim Hyunki, Pietraski Philip J, Crawford Michael J, Barrett Harrison H

机构信息

Department of Radiology, Division of Nuclear Medicine, University of Arizona, Tucson, AZ 85724 USA, and also with the Optical Sciences Center, University of Arizona, Tucson, AZ 85721 USA.

出版信息

IEEE Trans Nucl Sci. 2004 Jun;51(3):631-635. doi: 10.1109/TNS.2004.830975.

DOI:10.1109/TNS.2004.830975
PMID:20877439
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2945369/
Abstract

FastSPECT II is a recently commissioned 16-camera small-animal SPECT imager built with modular scintillation cameras and list-mode data-acquisition electronics. The instrument is housed in a lead-shielded enclosure and has exchangeable aperture assemblies and adjustable camera positions for selection of magnification, pinhole size, and field of view. The calibration of individual cameras and measurement of an overall system imaging matrix (1 mm(3) voxels) are supported via a five-axis motion-control system.Details of the system integration and results of characterization and performance measurements are presented along with first tomographic images. The dynamic imaging capabilities of the instrument are explored and discussed.

摘要

FastSPECT II是一台最近投入使用的16相机小动物单光子发射计算机断层显像（SPECT）成像仪，由模块化闪烁相机和列表模式数据采集电子设备构建而成。该仪器安装在铅屏蔽外壳内，具有可更换的孔径组件和可调节的相机位置，用于选择放大倍数、针孔尺寸和视野。通过五轴运动控制系统支持对单个相机的校准以及整个系统成像矩阵（1立方毫米体素）的测量。本文介绍了系统集成的详细信息、表征和性能测量结果以及首批断层图像。还对该仪器的动态成像能力进行了探索和讨论。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/22fe/2945369/5a7978f071e8/nihms234944f1.jpg

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