7Wegner OH. Whole body computerized tomography [ M ]. New York : Karger, 1993:60.
8Meyers MA. Dynamic radiology of the abdomen:normal and pathological anatomy [ M ].2nd ed. New York : Springer 2 Verlag,1976:113 -194.
9Scialpi M, Scaglione MG. Angelelli,et al. Emergencies in the retroperitoneum: assessment of spread of disease by helical CT [ J]. Euro Radio,2004,50( 1 ) :74 - 83.
10Kneeland JB, Auh YH, Rubenstein WA, et al. Perirenal spaces : CT evidence for communication across the midline [ J ]. Radiology,1987,164(3) :657 -664.