Mase Kyoushi, Tagami Miki, Imura Shigeyuki, Tomita Kazuhide, Monma Masahiko, Nozoe Masafumi, Takashima Yukie
Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Japan.
Department of Physical Therapy, Uekusa Gakuen University, Japan.
J Phys Ther Sci. 2016 Mar;28(3):1020-5. doi: 10.1589/jpts.28.1020. Epub 2016 Mar 31.
[Purpose] This study aimed to clarify the differences in regional lung volume between the semi-prone (Sim's position) and side-lying position, and the optimal position for increasing lung volume. [Methods] Measurements were performed in both positions on both sides. Sim's position was inclined 45° forward from the side-lying position. A 1.5-T system with a fast advanced spin-echo sequence in the coronal plane was used for magnetic resonance imaging. [Results] The two positions did not significantly differ in total lung capacity and its subdivisions on both sides, except the left lung in the right side-lying position and right Sim's position. In the nondependent lung, the percentage lung volume of the dorsal segment was significantly higher in the right Sim's position than in the right side-lying position. However, no significant difference was observed between the left side-lying and left Sim's position. [Conclusion] The heart was displaced ventrally by gravity in Sim's position and leaned on the ventral parapet. The spaces for the expansion of the ventral and dorsal segments of the lung were decreased and increased in Sim's position, respectively. With a nondependent left lung, the increase in the percentage lung volume of the dorsal segment was greater in Sim's position than in the side-lying position.
[目的] 本研究旨在阐明半俯卧位（西姆斯卧位）和侧卧位之间区域肺容积的差异，以及增加肺容积的最佳体位。[方法] 在两侧的两个体位上进行测量。西姆斯卧位比侧卧位向前倾斜45°。采用1.5-T系统，在冠状面使用快速进阶自旋回波序列进行磁共振成像。[结果] 除右侧卧位时的左肺和右侧西姆斯卧位时的左肺外，两侧的肺总量及其细分在两个体位之间无显著差异。在非下垂肺中，右侧西姆斯卧位时背段的肺容积百分比显著高于右侧卧位。然而，左侧卧位和左侧西姆斯卧位之间未观察到显著差异。[结论] 在西姆斯卧位时，心脏因重力作用向腹侧移位并靠在腹侧护墙上。在西姆斯卧位时，肺腹段和背段的扩张空间分别减小和增加。对于非下垂的左肺，西姆斯卧位时背段肺容积百分比的增加大于侧卧位。
