高橋 泰行¹, 苅谷 幹雄¹, 辻本 正彦¹, 荻田 房子², 上原 信彦³

Yasuyuki TAKAHASHI¹, Mikio KARIYA¹, Masahiko TSUJIMOTO¹, Fusako OGITA², Nobuhiko UEHARA³

¹耳原総合病院内科, ²耳原総合病院放射線科, ³耳原総合病院外科

¹The Department of Internal Medicine, Mimihara General Hospital, ²The Department of Radiology ,Mimihara General Hospital, ³The Department of Surgery ,Mimihara General Hospital

キーワード : ultrasonography, acute appendicitis

Twenty two patients with acute appendicitis confirmed by operation were examined by ultrasonography for the period of 18 months from January 1981 to June 1982. The ultrasonic findings of acute appendicitis is consisted with two components; 1) appendix was demonstrated as low echo area with double walls (appe echo), 2) high level echo was surrounding the appendix under the peritoneum.
In 18 cases, appendix could be demonstrated (82 percent) and in 16 cases high level echo around the appendix was observed (73 percent). With surgical intervention, in 14 out of 16 patients accumlation of omentum around the appendix was observed.
Appe echo、could be divided in two types, hypoechoic wall type (10 cases) and echogenic wall type (8cases). In comparison with ultrasonic and surgical findings echogenic wall type seemed to indicate sever appendicitis than hypoechoic wall type.
Therefore it was concluded that appe echo which seemed to indicate a swelling appendix and high level echo around the appendix were very helpful findings to diagnose acute appendicitis and echogenic wall type with high level echo should be performed appendectomy.