<s>
Bowel	O
distension	O
,	O
optimal	O
gastric	O
distention	O
is	O
a	O
fundamental	O
prerequisite	O
for	O
CT	B-Algorithm
gastrography	I-Algorithm
data	O
evaluation	O
;	O
collapsed	O
gastric	O
wall	O
may	O
mimic	O
disease	O
or	O
obscure	O
underlying	O
pathology	O
.	O
</s>
