7 MHz linear intra operative 7-8 MHz transrectal prostate 10 MHz linear endoscopic ultrasound, during surgery insulinoma, thyroid, breast 12 MHz linear Achilles tendon 5 MHz curved to evaluate GB, pancreas, spleen, liver 5 MHz linear with short focus for evaluation of acute appendicitis 13 mm cutoff for portal vein enlargement >10 mm normal renal cortex 6 mm (7 mm) appendix diameter normal limit 3-5 mm normal average gut wall 2 mm normal pancreatic duct limit 10-12Cm (9 -14 ) normal kidney length 3 mm gallbladder wall normal limit 8-12 hour for gallbladder scan preparation 60 degree or less accurate velocity measurement no other prep only renal sonogram, moderated hydration I. Liver (16%-24%) Inferior vena cava three hepatic vein drain into Kupper cell macr...