6Jeffrey RB, ain KA, Nghiem HV Sonograhic difference of acute appendicitis interpretive pitfalls. A JR, 1994,162 (1) : 55-58.
7Puylaevt JBCM. Acute appendicitis Us tvaluatiou using graded compression . AJR,1967,96(11):79-81.
8Moteki T,Horikoshi H.New CT criterion for acute appen-dieitis:maximum depth of intrahminal appendieeal fluid[J].AJB,2007,188(5):1313-1319.
9Raj Wijunga,Beng S Tan,John C Rouse,et al.Diagnostic accuracy of focused appendiceal CT in clinically equivocal cases of acute appendicitis[J].Radiology,2001,221:747-753.
10See TC,Ng CS,Watson C JE.Appendicitis:spectrum of appearance on CT[J].British Journal of Radiology,2002,75:775-781.