Computerized methods for determining respiratory phase on dynamic chest radiographs obtained by a dynamic flat-panel detector (FPD) system
Computerized methods for determining respiratory phase on dynamic chest radiographs obtained by a dynamic flat-panel detector (FPD) system
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DOI：
10.1007/s10278-004-1045-z
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发表时间：
2006-03-01
影响因子：
4.4
通讯作者：
Matsui, O
中科院分区：
文献类型：
--
作者：
Tanaka, R;Sanada, S;Matsui, O
使用动态平板探测器的大视野胸部摄影可以在呼吸过程中提供连续的胸部摄影。这些图像提供了有关呼吸动力学的信息，这对肺部疾病的诊断是有效的。为了有效地分析呼吸动力学在肺部疾病诊断中的作用，确定呼吸动力学与呼吸时相之间的联系是至关重要的。我们开发了四种基于与呼吸相关的图像信息来确定呼吸时相的方法，并比较了37名受试者动态胸片的结果。在这里，讨论了每种方法的特性和未来的任务。根据肺大小的变化得出的结果最稳定，而根据肺尖到横隔膜的距离变化来确定呼吸时相是最有前景的方法。
Chest radiography using a dynamic flat-panel detector with a large field of view can provide sequential chest radiographs during respiration. These images provide information regarding respiratory kinetics, which is effective for diagnosis of pulmonary diseases. For valid analysis of respiratory kinetics in diagnosis of pulmonary diseases, it is crucial to determine the association between the kinetics and respiratory phase. We developed four methods to determine the respiratory phase based on image information associated with respiration and compared the results in dynamic chest radiographs of 37 subjects. Here, the properties of each method and future tasks are discussed. The method based on the change in size of the lung gave the most stable results, and that based on the change in distance from the lung apex to the diaphragm was the most promising method for determining the respiratory phase.