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"Doctor Wang, why do you sometimes require an empty stomach before ultrasound examination? Sometimes urine is required? Sometimes you can check at any time?"

Projects required for empty stomach

Liver, gallbladder, pancreas, stomach, duodenum, abdominal blood vessels and other organs need to be empty for 12 hours during ultrasound examination.

Because there are too many abdominal gases after eating, the ultrasonic penetration force is poor. Ultrasonic cannot see the organs you want to check, which affects the quality of the examination;

The gallbladder after eating will shrink and discharge bile to help the food digestion. The narrowing of the cystic cavity seriously affects the display of the gallbladder structure; the food in the stomach after eating will block the internal structure of the stomach.

Projects required to hold urine examination

When checking the bladder, prostate, seminal vesicles, abdominal uterus, ovarian and other organs, urination is needed.

Because there is intestinal qi interference in front of the bladder, proper bladder filling is needed as a sound -transparent window, and the surrounding intestines around the "push away" are needed to observe the fine structure of the above parts.

Projects that can be checked at any time

The thyroid, breast, heart, neck, and limb blood vessels can be checked at any time.

"Doctor Wang, why do you always apply a sticky liquid on the body surface skin?"

During the examination, the sticky liquid like jelly on the skin is a "medical ultrasound coupling agent". The coupling agent is a water -soluble polymer gel. It is colorless, tasteless, and irritating, and does not cause any harm to the human body.

Because the ultrasonic cannot be transmitted in the air, the coupling agent is used as a medium, which can isolate the air between the ultrasonic probe and the human skin to check the imaging.

"Doctor Wang, why do you always turn over and hold your stomach when ultrasound examination?"

By turning over, avoiding the intestinal gases, or moving some organs, lesions, etc., you can clearly diagnose.

For example, doubt the gallbladder stones can observe the movement of the gallbladder stones by turning over.

"Doctor Wang, is ultrasound checking harm to the body?"

Ultrasonic inspection uses ultrasound as a medium, and the transmission of sound waves in the human body is like the sound of speaking. Without ionizing radiation is a very safe and convenient examination.

(Edit Rainbow.)

Special Author of Hunan Medical Chat: Wang Rui, the Secretary of the Secretary of the Secretary of Liu Fen, Hunan Wangwang Hospital

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