Ultrasound machines emit high-frequency sound waves that bounce off internal structures in the body. These sound waves are then detected by a transducer, which converts them into electrical signals. The signals are processed by a computer to create real-time images of the area being examined.
Yes, ultrasound is considered safe because it does not involve radiation exposure like X-rays or CT scans. It is commonly used during pregnancy to monitor fetal development without any known harmful effects on the fetus or the mother.
Ultrasound can be used to diagnose various conditions, such as gallstones, kidney stones, liver disease, abnormalities in the heart and blood vessels, tumors, cysts, and certain types of cancers. It is also used for monitoring pregnancies, assessing the health of the fetus, and guiding certain medical procedures.
During an ultrasound, you will lie down on an examination table, and a gel will be applied to the area of the body being examined. The sonographer or radiologist will then gently move a handheld transducer over the gel-coated skin, transmitting sound waves and capturing images on a monitor.
Preparation instructions may vary depending on the specific type of ultrasound test. In some cases, you may be asked to avoid eating or drinking for a certain period before the test. For abdominal ultrasounds, you may be instructed to have a full bladder. Your healthcare provider will provide specific guidelines before the procedure.