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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.
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Which of the follow ing techniques use piezoelectric crystals?
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The correct answer is  Ans. is 'a' i.e.. Ultrasonography {Ref: Sutton 6th/e p. 12: Grainger 4th/ep. 102]o Ultrasonography is based on piezoelectric effect.o MR! is based on gyeromagnetic property of proton (H+).