The medical purpose of ultrasound, also known as sonography, is to visualize the structures inside the body to aid in diagnosis and treatment of various medical conditions.
Ultrasound imaging uses high-frequency sound waves to create real-time images of internal organs, tissues, and blood flow. This non-invasive technique helps physicians:
- Diagnose medical conditions: Ultrasound can help identify abnormalities such as tumors, cysts, infections, and blood clots.
- Guide medical procedures: Real-time ultrasound imaging can guide needle biopsies, fluid aspirations, and catheter placements.
- Monitor fetal development during pregnancy: Ultrasound is commonly used to monitor the growth, development, and well-being of a fetus during pregnancy.
- Assess blood flow: Doppler ultrasound can evaluate blood flow through arteries and veins, helping to detect blockages or narrowing.
- Evaluate organ function: Ultrasound can assess the size, shape, and structure of organs, providing insights into their function.
Most ultrasounds are performed externally using a transducer placed on the skin. However, some procedures require the use of an internal transducer that is inserted into the body to obtain more detailed images.