Diaphragmatic motion in the sitting and supine positions: Healthy subject study using a vertically open magnetic resonance system
Diaphragmatic motion in the sitting and supine positions: Healthy subject study using a vertically open magnetic resonance system
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DOI：
10.1002/jmri.20051
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发表时间：
2004-05-01
影响因子：
4.4
通讯作者：
Murata, K
中科院分区：
文献类型：
--
作者：
Takazakura, R;Takahashi, M;Murata, K
目的：材料与方法：10例健康男性，采用垂直开放式0.5T磁共振（MR）系统，观察坐位与仰卧位关节活动的体位差异。共40个连续的MR图像，获得了在两个到现场呼吸周期的坐姿和仰卧位。在两种体位的六个矢状面的三个矢状点上测量矢状偏移（DE）。结果：在18个测点中，仰卧位的DE值明显大于坐位，其中15个测点的DE值大于坐位。在6个矢状面中的5个矢状面上，仰卧位前后点DE值的差异显著大于坐位。结论：仰卧位膈肌运动大于坐位，尤其是在膈肌后部。
Purpose: To determine the postural difference of diaphragmatic motion between the sitting and supine positions.Materials and Methods: A total of 10 healthy men were examined using a vertically open 0.5-T magnetic resonance (MR) system. A total of 40 sequential MR images were obtained in both the sitting and supine positions during two to live respiratory cycles. The diaphragmatic excursions (DEs) were measured on three diaphragmatic points of six sagittal planes for both positions. The differences in DEs between the anterior and posterior parts of the diaphragm were also determined.Results: DEs in the supine position were significantly greater than those in the sitting position at 15 of the 18 points. In five of the six sagittal planes, the difference of DE between posterior and anterior points was significantly larger in the supine position than in the sitting position.Conclusion: Diaphragmatic movement in the supine position is greater than that in the sitting position, especially in the posterior part of the diaphragm.