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Flashcards in Abdomen Basic Principles Deck (14):
1

What is contrast dependent on in abdominal radiography 

fat

2

What techniques should be used with abdominal radiographs?

short scale contrast (low kVp and high mAs)

grid if >10cm 

expiratory radiographs 

adequate collimation 

3

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 

4

T/F patients should be fasted and/or given enemas for survey radiographs

False 

 

5

which views should be included?

RT and L laterals

VD

6

what are some special radiographic projections?

horizontal-beam radiograph

compression radiography

urethra "shot" 

7

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 

8

what are some summation shadows that can fake you out?

prepuce 

gas in anal sacs (radiolucency that looks like bone lesions

9

2 techniques of evaluation

checklist 

zones

10

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 

11

Organs by zone 

Check out this chart!!

12

interpretation paradigm 

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

13

Checklist 

Stomach

SI

Colon

Liver

Spleen

Kidneys

Urinary Bladder

Prostate/Uterus

Serosal Contrast

Retroperitoneal

Bones

14

the linear opacities (arrows) are due to...

wet hair 

see a lot more becuase of increase in U/S being done (gel); dont get confused with fluid in abdomen