2[2]Chan - chien CS, Lin HH, Yen CL, et al: Sonographic demonstration of free air in perforatsd peptic ulcers: Comparison of sonography with radiography. J Clin Ultrasound 1989,17: 95
3[3]Tsai KC, Wang HP, Huang GT, et al:Preoperative Sonographic Diagnosis of Sealoff perforated gastric ulcer. J Clin Ultrasound: 1998,26(5) :269 - 71
4[4]Chau wk, Chan SC: Sonographic Diagnosis of a Small fistulous Communication Between a Subphrenic Abscess and a Perforated Duodenal Ulcer. 2000,28(3): 153 - 6
3Chen CH, Yang CC, Yeh YH. Role of upright chest radiography and uhrasonography in demoustrating free air of perforated peptic ulcers [J]. Hepatogastroenterology, 2001,48:1082-1084.
4Yoshizumi T,lkeda T,Ohta S,et al.Abodominal ultrasonography reveals the perforation site of duodenal ulcers[J].Surg Endosc,2001,15(7):758.
5吴阶平,裘法祖.黄家驷外科学[M].北京:人民出版社,2006:13.
6Chau WK, Chan SC. Sonograpgic Diag- nosis of a Small fistulous CommunicationBetween a Subphrenic Abscess and a Per- forated Duodenal Ulcer[J]. J Clin Ultra- sound, 2000,28,3i153-156.
7Yoshizumi T, lkeda T, Ohta S, et al. Abo- dominal ultrasonography reveals the per- foration site of duodenal ulcers [J]. Surg Endosc, 2001, 15(7):758.
