图1‐124内耳CT三维重建前面观CT 3‐dimension image of in‐ner ear,anterior view。1 ﹒上半规管superior semicircular canal。2 ﹒外半规管lateral semicir cular canal。3 ﹒总脚common crus。4 ﹒后半规管posterior semicircular canal。5 ﹒耳蜗顶cochlear cupula。6 ﹒耳蜗第二圈middle turn of coch lea。8 ﹒耳蜗底圈basil ......