What is contrast dependent on in abdominal radiography
What techniques should be used with abdominal radiographs?
short scale contrast (low kVp and high mAs)
grid if >10cm
what are the boundaries that should be included in a complete examination?
cranial edge of diaphragm
caudal greater trochanter of femurs
lateral, dorsal and ventral soft tissue boundaries
T/F patients should be fasted and/or given enemas for survey radiographs
which views should be included?
RT and L laterals
what are some special radiographic projections?
what are some differences seen in cats vs dogs
More peritoneal fat in cats - Better detail, Falciform “mass”
Pancreas extends to left - never see normal pancreas in dogs
Spleen smaller - not usually seen in later views in cats
Fat in stomach wall - intramural radiolucent bands in cats
Position of pylorus - more medial in cat
Size of cecum - more of a blind sac in cats
what are some summation shadows that can fake you out?
gas in anal sacs (radiolucency that looks like bone lesions)
2 techniques of evaluation
how can zones be used to evaluate abdominal radiographs?
divide the lateral abdomen into six zones
divide the VD or DV abdomen into left and right hemi-abdomen
label zone by standard nomenclature
Organs by zone
Check out this chart!!
Are the views adequate…all present
Is positioning adequate
Was a grid used
What is body habitus
Was x-ray beam vertical or horizontal
Are images analog or digital
Are there morphologic aspects of patient that will influence appearance
Now look for abnormalities
the linear opacities (arrows) are due to...
see a lot more becuase of increase in U/S being done (gel); dont get confused with fluid in abdomen