Office based 3D-CTが有用な耳管開放症の診断と治療 (耳管ピン) への応用

抄録

The pET symptoms are tended to be masked in the recumbent position. CT for pET should be examined in the sitting position. CT was performed under the resting and Valsalva's condition. Completely open ET was observed in 79.2% of the pET group (n=111), but in none of the control group (n=30). The average ET-gram showed an occlusive zone (OZ) in medial to the isthmus under both conditions in only control group. Trans-tympanic silicone plug insertion was thought to be reasonable technique because of obliteration approach to isthmus. Office-based CT examined in the sitting position is useful for diagnosis and evaluation of pET.