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作者研究了６９例水平锯开的成人颅骨颧颌点、乳突点在颅底的分布和跨侧颧颌点──乳突点连线与颞骨岩锥颅内走向之间的关系。在放有标记的颅骨Ｆｒａｎｋｆｕｒｔ平面水平颅底轴位片上，测量了跨侧颧颌点──乳夹点连线及岩锥轴线与颅正中矢状面的夹角，测量结果：两线重合５５例（３９．９±３．９％）；平行４３例（３１．２±３．９％）；相交４０例（２９．０±３．９％）；跨侧颧颌点──乳突点连线与颅正中矢状面的夹角为５８．１０±１．８４°；岩锥轴线与颅正矢状面的夹角为５３．４５±３．１０°。表明跨侧颧颌点──乳突点连线与岩锥颅内走向存在相对一致和几何关系，在ｘ线投照学上，可以作为梅氏位和斯氏位摄影岩锥颅内走向的标志线。
The authors studied 69 adult horizontal skull zygomatic jaws, the distribution of the mastoid point at the base of the skull and the intermaxillary zygomatic jaw - the relationship between the mastoid junction and the intracranial orientation of the petrous bone cone. Marked skull in the plane of the skull flat-head skull axial film, measuring the cross-side zygomatic jaw ─ ─ pinch point connection and the rock axis and the median sagittal cranial angle, the measurement results: two coincidence 55 (39.9 ± 3.9%); 43 cases (31.2 ± 3.9%) parallel; 40 cases (29.0 ± 3.9%) intersected; The angle between the line and the median sagittal plane was 58.10 ± 1.84 °. The included angle between the axis of the cone and the positive sagittal plane was 53.45 ± 3.10 °. Cross-sided zygomatic jaw point ─ ─ mastoid point of connection with the rock cone intracranial strike there is a relatively consistent and geometric relationship, in the x-ray castable, can be used as the Meyer’s and Steinbock imaging of the intracranial lithotripsy Sign line.