方法120例房颤合并宽QRS波群心电图患者。
Methods 120 patients with AF complicated with wide QRS wave were included in this study .
后组筛窦的气房一般大而宽，在数量上也少于前组筛窦，容易确定。
The posterior ethmoid cells are easily identified as they are larger , wider , and fewer in number than anteriorly .
房宽