Chest tomosynthesis: technical principles and clinical update.

Chest tomosynthesis: technical principles and clinical update.
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胸部合成:技术原理和临床更新。

DOI:
10.1016/j.ejrad.2009.05.054
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发表时间:
2009-11
影响因子:
3.3
通讯作者:
McAdams, H. Page
McAdams, H. Page
中科院分区:
医学3区
文献类型:
--
作者:
Dobbins, James T., III;McAdams, H. Page

文献摘要

参考文献

被引文献

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数字断层合成是一种射线摄影技术,可以从x射线管的单次通过产生任意数量的患者切片图像。它利用传统的x射线管、平板探测器、计算机控制的射线管移动器和特殊的重建算法来产生切片图像。虽然它没有计算机断层扫描(CT)的深度分辨率,但断层合成提供了CT的一些断层扫描优势,但成本和辐射剂量比CT低。与传统的胸部x线摄影相比,胸部断层合成术可以提高血管、气道和脊柱等正常结构的可见性。通过减少正常解剖上的视觉杂乱,它也增强了对肺小结节的检测。这篇综述文章概述了层析合成系统的组成部分,讨论了最近文献中关于改进肺结节检测的结果,并介绍了人类临床试验中结节检测的例子。讨论了应用于临床胸部成像的可能实施策略。
Digital tomosynthesis is a radiographic technique that can produce an arbitrary number of section images of a patient from a single pass of the x-ray tube. It utilizes a conventional x-ray tube, a flat-panel detector, a computer-controlled tube mover, and special reconstruction algorithms to produce section images. While it does not have the depth resolution of computed tomography (CT), tomosynthesis provides some of the tomographic benefits of CT but at lower cost and radiation dose than CT. Compared to conventional chest radiography, chest tomosynthesis results in improved visibility of normal structures such as vessels, airway and spine. By reducing visual clutter from overlying normal anatomy, it also enhances detection of small lung nodules. This review article outlines the components of a tomosynthesis system, discusses results regarding improved lung nodule detection from the recent literature, and presents examples of nodule detection from a clinical trial in human subjects. Possible implementation strategies for use in clinical chest imaging are discussed.
DOI: 10.1097/rli.0b013e318168f705
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