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
Which of the following is the initial investigation of choice for evaluation of a suspected case of gall stones?
assistant
The correct answer is  Ans. is 'a' i.e., Ultrasonography * Transabdominal ultrasonography is the initial imaging modality of choice in patients with suspected gall stones, as it is accurate, readily available, inexpensive and quick to perform