Diagnostic ultrasound, also called sonography or diagnostic medical sonography, is an imaging method that uses high-frequency sound waves to produce images of structures within your body. The images can provide valuable information for diagnosing and treating a variety of diseases and conditions.
Most ultrasound examinations are done using an ultrasound device outside your body, though some involve placing a device inside your body.

• Why it’s done
• – Ultrasound is used for many reasons, including to:
• – View the uterus and ovaries during pregnancy and monitor the developing baby’s health
• – Check your liver
• – Diagnose gallbladder disease
• – Check kidney stones
• – Evaluate blood flow
• – Guide a needle for biopsy or tumor treatment
• – Examine a breast lump
• – Check your thyroid gland
• – Detect genital and prostate problems
• – Assess joint inflammation (synovitis)