Child with abdominal pain, ultrasound shows no appendicitis, do we still need to do a CT?

Children with abdominal pain, ultrasound shows not appendicitis, sometimes need to do CT examination.
If a child has abdominal pain, it may be due to appendicitis, ultrasound can be done, usually can be clearly diagnosed, but some appendices may have abnormal location, ultrasound may not be able to find the appendix, then need to do abdominal CT examination, can find the abnormal location of the appendix.
After the children appear abdominal pain, may also be caused by intestinal tumors, or due to intussusception and other diseases, when suspected of these diseases, need to do CT examination, can be clearly diagnosed.
If the child has abdominal pain, it is recommended to consult a doctor in time, need to analyze the clinical symptoms and physical examination, and then improve the relevant auxiliary examination, to be able to clarify the cause, and then can carry out the corresponding treatment.