Planar relationships of the semicircular canals in man.
Planar relationships of the semicircular canals in man.
复制标题
人体半规管的平面关系。
作者：
R. Blanks;I. Curthoys;C. Markham
主成分分析是在从10个人类头骨的解剖骨迷宫测量的一系列点上确定的，从而得到6个半规管中的每一个的平面方程。在此之后，计算同侧根管平面之间、相对协同作用的根管平面之间以及每个根管与里德立体定向平面之间的角度。结果表明，除前根管与水平根管之间的夹角（平均为111度）外，对同侧根管几乎垂直。对侧协同管面在左右水平管面之间形成19度角，在垂直管面之间形成23-24度角。水渠与里德水平面成25度角。利用半规管的数学方程来预测旋转和热刺激的最佳头部位置。
Principal-component analyses were determined on a series of points measured from the dissected bony labyrinth of ten human skulls, resulting in planar equations for each of the six semicircular canals. Following this, angles were calculated between the ipsilateral canal planes, between opposite synergistically acting canal planes and between each canal and the Reid stereotaxic planes. Results indicated that pairs of ipsilateral canals were nearly perpendicular, with the excpetion of the angle formed between the anterior and horizontal canal (mean = 111 degrees). Pairs of contralateral synergistic canal planes formed angles of 19 degrees between right and left horizontal canal planes and 23-24 degrees between vertical canal pairs. The horizontal canals formed an angle of 25 degrees with the Reid horizontal plane. Mathematical equations of the semicircular canals were used to predict the optimal head position for rotational and caloric stimulation.