Ultrasonography is the imaging of organs and other structures in the body with the help of high-frequency sound waves. One cannot hear every sound, but one can hear certain sounds between 20-20000 Hertz. Sounds above 20000 Hertz, which is the sound limit that humans can not hear, are used in medicine. This method is called ultrasonography (USG).
Although the frequencies are very high, the examination does not cause any harm to the body. No harmful radiation such as X-rays etc. is used.
Ultrasonography is most useful in examining organs and structures that contain fluids. Solid structures such as bone and air-filled organs such as the lungs (as they do not contain much fluid) do not look good on ultrasound. However, masses and solid formations in fluid-containing organs can be monitored.
In What Situations Is Ultrasonography Used?
Pain in urine, bleeding
Continuous digestive complaints such as kidney disease, kidney stones, diabetes, indigestion, nausea
Abdominal trauma, such as a traffic accident or a hard blow to the abdomen (if there is a risk of internal organ rupture or bleeding)
In cases related to intra-abdominal organs
Which Body Parts Can Be Viewed with Ultrasonography?