Ultrasound manifestations of appendicitis

Nowadays, many people are troubled by appendix. In fact, appendicitis has always been a topic. We also see many TV dramas or film and television works where people often have stomach pain, which is caused by appendicitis. In fact, the reason why appendicitis is easy to occur is that the standing position is relatively special and it is easy to be disturbed by some things. Here I will introduce to you some related examinations about appendicitis.

Remember this sentence: to find the appendix, find the ileocecal part first; to find the ileocecal part, find the ascending colon first.

1. Let's find the ascending colon first. The ultrasound characteristics of the ascending colon are: it is located in front of the right kidney, and the ultrasound image is wavy (due to the colon bag). Normally, only the surface image of the colon can be displayed because it contains fecal stones and gas, and generally no liquid. Due to the above characteristics, the ascending colon is easy to find.

2. Explore downward along the ascending colon and you will find the ileocecal region in the right lower abdomen. Ultrasound characteristics of the ileocecal region: When the section is consistent with the long axis of the terminal ileum, the image of the terminal ileum inserting into the colon can be seen, and the insertion segment gradually becomes thinner. When the section is perpendicular to the long axis of the terminal ileum, a "concentric circle" sonogram similar to intussusception can be seen. The ileum often moves, but the colon does not.

3. Within two centimeters below and behind the ileocecal region is the connection point of the appendix. Therefore, generally, after finding the ileocecal part, the probe should not be moved but rotated on the spot, and the exit and proximal end of the appendix should be found. The echo of the appendix wall is: strong-weak-strong. The appendix cavity generally has linear strong echoes.

Note:

1. The appendix is ​​usually located in the right lower abdomen, but it can also be ectopic. Look carefully for the ascending colon and ileocecal region.

2. Because children, especially infants, have relatively small bodies, the position of their appendix is ​​relatively small compared to adults. One cut surface will often be on organs such as the kidney or liver. Do not think that it is ectopic. (It depends on the actual situation)

3. Choose a high-frequency probe. Sometimes, fat patients need to be examined with a low-frequency probe in turn.

4. When you can’t find it, ask the patient where it hurts the most and then look carefully there.

5. The appendix is ​​often found around the iliac blood vessels, so the iliac blood vessels are also an important landmark to be found.

6. When you can’t see clearly, gradually apply pressure to expel intestinal gas.

7. As the resolution of color ultrasound equipment improves, the normal appendix can be displayed. As long as you are careful, serious, patient and have a good ultrasound device, the display rate of a normal appendix will be no less than 70%.