垂直中心线
Methods: Before operation, three straight lines that were 120 ° apart, were drawn on the skin with one center which was on the vertical line of mass center.
手术之前,以患乳皮肤上与肿块中央垂直的一点为中心,并从中心画相隔120°角的三条直线。
Measure the distance between the center point of aneurysmal neck and the nearest point of ipsilateral anterior and posterior clinoid and the angle between the major axis of aneurysm and the aneurysmal vertical projection line on horizontal plane, coronal plane and sagittal plane.
测量后交通动脉瘤的瘤颈中心到同侧前、后床突最近点之间的距离以及瘤颈长轴在水平轴面、冠状面和矢状面三个平面偏离中线的角度。
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