Abdominal Ultrasound Gastric Ultrasound OK, maybe this isn’t 100% applicable, but it’s still cool, come on. Put a curvilinear probe on your stomach, watch it digest your breakfast, and tell me this isn’t cool! Abdominal Free Fluid – Ascites, Blood, Etc. Bladder Volume Assessment Gall Bladder Ultrasound Renal Ultrasound