What does DV mean in veterinary medicine?

DV isn't a standard abbreviation, so it can mean several things. On a radiograph (x-ray), it means dorso-ventral, or an image created by shooting the beam through a line connecting the backbone and the sternum. When discussing abdominal viscera, DV can mean dilation/vovulus, which means a portion of the gastrointestinal tract is twisted on itself and the twisted section is filling with gas.