You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is USG is done to visualize all except- and explain in detail?
Ans. is 'd' i.e., BoneStructures on USGo Regions of body distal to highly attenuating structures, such as bone or gas, appear dark on image because of shadowing As most of the sound beams are reflected by highly attenuating structures, little is available for imaging of deeper structures. It is referred to as Acoustic shadowing. Acoustic shadowing is produced by bone, calculus, and air (gas).o On the other hand, structures deep to low attenuating structures, such as liquid, appear bright Acoustic enhancement. Acoustic enhancement is produced by cyst.