5Mathis RD, Chiumento AB, Yeh B,et al. An outcome study of the use of computed tomography for the diagnosis of appendicitis in a community - based emergency department [ J ]. South Med J, 2005 , 95 (12) :1169 - 1172.
6Giuliano V , Giuliano C , Pinto F , et al . Chronic appendicitis "syndrome" manifested by an appendicolith and thickened appendix presenting as chronic right lower abdominal pain in adults[ J ]. Emerg Radiol,2006,13(11 ) :1 -3.
7Tsukada K , Miyazaki T , Katoh H , et al . Clinical factors influencing CT findings in patients with acute appendicitis[ J]. Hepatogastroenterology, 2005,52 (66) : 1748 - 1751.
8Fefferman NR, Bornsztyk E, Yim AM, et al. Appendicitis in children : low - dose CT with a phantom - based simulation technique - - initial observations [ J ]. Radiology, 2005 , 237 ( 2 ) : 641 - 646.
9Puylaert JB.Acute appendicitis: US evaluation using graded compression.Radiology,1986,158:355-360.
10Raptopoulos V,Katsou G,Rosen MP,et al.Acute appendicitis: effect of increased use of CT on selecting patients earlier.Radiology,2003,226:521-526.