Page 329 - Feline diagnostic imaging
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                    (b)
















               Figure 21.4  Images of a correctly placed stomach tube. (a) Lateral projection. Arrows indicate the trachea containing air. (b) Lateral
               projection showing barium in the stomach tube, stomach, and small intestine. The distal esophagus has a “fish bone” appearance
               (c) Ventrodorsal projection.


                                                                            (b)













                (a)






















               Figure 21.5  An upper GI series has been performed using barium-impregnated polyethylene spheres. The spheres come in a gelatin
               capsule in two sizes: the larger spheres (5.0 mm) are intended to check for obstruction while the smaller ones (1.5 mm) are used to
               measure transit times. (a) Lateral projection of the abdomen following oral administration of BIPS. (b) Ventrodorsal projection.
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