Radiology is like standing on the outside of the building; it allows you to see the size, shape and contour of the building; ultrasound allows you to look into each room in the building i.e. the liver room, the gallbladder room, the pancreas room, the kidney room, the urinary bladder room etc.
Osteochondritis dissecans (osteochondrosis dissecans, OC, OCD) is the most common of the developmental orthopedic diseases and is caused by a sub-condral ossification defect that results in increased thickness of soft articular cartilage, thus decreased nutrient and oxygen availability (from articular fluid) and secondary mechanical failure resulting in a concave bony defect and cartilage flap formation.
Anatomy (from the?Greek??v???????anatomia, from??v????v????ana: separate, apart from, and temnein, to cut up, cut open) is a branch of?biology?and?medicine?that is the consideration of the?structure of living things. It is a general term that includeshuman anatomy, animal anatomy (zootomy) and?plant anatomy?(phytotomy).
The survey ultrasound study is primarily used to assess soft tissue composition and in some cases function (echocardiogram) as well as guide you in biopsying "soft tissue" lesions. It has limited value in assessing bone-primarily restricted to the bone surface and it has no value in evaluating gas other than letting you know gas is present.
Before pathology can be discussed, the normal appearance of the liver, biliary system, and pancreas will be reviewed. Determination of liver size via US is not accurate and is best done on radiographs. Ultrasound is best performed with the animal in dorsal recumbency (on their back) and the area must be clipped free of hair.