system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
HIDA scan is useful in:
assistant
The correct answer is  HIDA Scan: 99mTc hepatobiliary imaging (using iminodiacetic acid compounds), also known as the HIDA scan. is useful in demonstrating an obstructed cystic duct, which is the cause of acute cholecystitis in most patients.