Ultrasound examination can be divided into many categories, mainly divided according to the examination site and technology, including abdominal ultrasound, pelvic ultrasound, chest ultrasound, vascular ultrasound, and so on. The technical division includes two-dimensional inspection, three-dimensional inspection, color Doppler ultrasound diagnostic equipment inspection, etc…
A Doppler ultrasound is an imaging test that uses sound waves to show blood moving through blood vessels. A regular ultrasound also uses sound waves to create images of structures inside the body, but it can’t show blood flow.
A Doppler ultrasound may help diagnose many conditions, including:
In terms of clinical application, ultrasound examination allows you to clearly see the cross-sectional image of the lesion and surrounding tissues, and because the displayed picture can be three-dimensional, very similar to the human body structure in anatomy, it is possible to do some preliminary disease early Diagnosis.
When performing ultrasound examinations, it should also be noted that different ultrasound examinations have different precautions. If they are not done in place, it will affect the examination results.
For example, when checking the hepatobiliary, pancreas, adrenal gland, and other parts, fasting is required for 12 hours; when checking the bladder prostate, uterine appendix, and pelvic parts, bladder filling is required (ie, holding back urine); those who have done gastrointestinal barium meal fluoroscopy, need to do ultrasound examination after 3 days.
Reference: Doppler Ultrasound