Ultrasonographic examination of 40 pet guinea pigs was performed in the fra
mework of this study. Preparation of the patient for ultrasonography and th
e examination procedure are described. Normal ultrasonographic findings of
the abdominal organs including the liver, spleen, kidney and urinary bladde
r are presented and illustrated for the first time in this species. Ultraso
nography was found to be a useful investigative tool in the diagnosis of ab
dominal diseases in guinea pigs. In comparison to other diagnostic methods
like physical examination including palpation, haematological examination,
radiography and diagnostic laparotomy, ultrasonography offers a rapid, non-
invasive and reliable means of diagnosing abdominal diseases in this specie
s.