Sonography (ultrasound diagnostics), background information

During a sonographic examination, the so-called transducer emits ultrasonic waves, which penetrate the body and, depending on the type of the tissue, get absorbed, scattered, broken or reflected there. An ultrasonic head receives reflected impulses. The computer calculates a two-dimensional B-mode ultrasound image that can be immediately seen on the screen. The technical background for the calculation of an image is based on the time required by the transmitted signal and the intensity of the reflected signal.

The most common ultrasound examinations are those of the abdomen and female breast. Here the patients lie comfortably on their back. Examinations of the thyroid and joints may also be performed in a sitting position. While examining infant hips, it is possible to use the special support cushions in order to place the newborn into the right position.

The gel applied to the skin ensures optimal functioning of the transducer that is moved over the body area being examined.

As a rule, a sonographic examination takes only a few minutes, the gel will be removed after that.

An ultrasound examination is harmless and absolutely painless.

The patient should fast before an examination of the upper abdomen, so that the superimposition of intestinal gas does not interfere with the evaluation of the abdominal organs. For that reason, the best way is to make an appointment early in the morning. Pelvic organs should be examined with the full bladder, it would then lift the pelvic organs and make them more visible.

If you come with your newborn to a hip ultrasound, you should feed it before coming, and, if necessary, it should get a baby-soother or the like. These measures would calm the little patient in unfamiliar surroundings.