Inhaling during an abdominal CT is a bulging stomach.
During normal breathing, usually in the inspiratory phase, the external gas enters the alveoli through the respiratory tract, the pressure in the chest cavity decreases, the alveoli expand, the chest cavity expands, and the abdomen is bulging. During expiration, the alveoli contract and the pressure in the chest cavity increases, prompting the gas in the alveoli to be expelled from the body through the respiratory tract, so the abdomen is in a concave state.
When doing abdominal CT, because the abdominal organs are more affected by respiratory movement, the artifacts of abdominal respiratory movement are obvious, which will affect the clarity of the image and the accuracy of the diagnosis. Therefore, during the examination, in order to observe more clearly, it is usually necessary to let the patient inhale deeply, so that the abdomen bulges, which can minimize breathing movement artifacts.
It is recommended that inhalation and exhalation be performed under the guidance of a physician so as not to affect the examination results.