The ACVR (American College of Veterinary Radiology) & ECVDI (European College of Veterinary Diagnostic Imaging) have  published a Consensus Statement for the Standardization of the Abdominal Ultrasound Examination.  It is an open access article available to the public for review.

Big thanks to the authors for all the hard work put into this document:

Gabriela S. Seiler, Eli B. Cohen, Marc-Andre d’Anjou, John French, Lorrie Gaschen, Stephanie Knapp, Rochelle M. Salwei, H. Mark Saunders