Acute cholecystitis in an animal model: findings on color Doppler sonography.

Objective: The purpose of our study was to evaluate the color Doppler findings of acute cholecystitis in a controlled canine model.

Materials And Methods: Fourteen animals had a laparotomy: cystic duct ligation was done in eight, and incision with closure was performed in six control subjects. Animals were scanned in a blinded fashion preoperatively, immediately postoperatively, and on postoperative days 1-5.

Lesion visualization by targeted computed tomography liver enhancement in dogs.

Rationale And Objectives: We conducted a pilot study to determine the potential advantages of using liver-specific targeted computed tomography (CT) contrast agents for lesion detection.

Methods: Eight dogs had liver infarcts created by percutaneous injections of ethanol. Each dog underwent CT scans with four imaging techniques: unenhanced, intravenous contrast enhanced (IVCE), CT arterial portography (CTAP), and targeted liver enhancement with iodipamide ethylester (IDE) particles.