On October 29, ultrasound doctors celebrate their professional holiday Today, ultrasound is considered one of the most effective and safe diagnostic methods It is used when making a diagnosis by doctors of various specialties Allows you to get an accurate idea of the state of various organs and systems of the human body The scope of research based on ultrasound exposure is expanding every year Ultrasound is a non-invasive method for examining tissues and organs, which is based on the principle of echolocation A special device transmits ultrasonic waves to the area under study Then the reflection of these waves from the walls of certain organs is recorded The image obtained from the reflection is displayed on the screen It allows the ultrasound doctor to draw conclusions about the patient’s health These findings are reflected in a report that is sent to the attending physician The ultrasound diagnostic method has the following advantages:• harmlessness, no consequences for the patient’s health;• high information content;• the ability to diagnose pathologies in the early stages;• the ability to monitor the patient’s condition over time;• ease of research and high speed of obtaining results;• the possibility of using examination of infants from the first days of life; • no need for complex or lengthy patient preparation The first experiments with ultrasound were carried out in the 19th century Then the theory of sound was developed, which laid the foundation for the concept of ultrasound In the 20th century, research continued, and ultrasonic waves began to be used to detect defects in metal In the 1930s, attempts began to introduce ultrasound into medicine They lasted about ten years, as a result, the effectiveness of ultrasonic waves in diagnosing tumors was proven In 1949, the prototype of modern ultrasonic devices was developed It was a liquid-filled reservoir The patient was placed inside, and a special scanner moved around him The research took quite a long time Soon, a more convenient portable device was created that provides images of detected tumors in real time The research method using this device was called echography By the mid-60s, ultrasound scanners had already acquired a look close to modern models Nowadays, the ultrasound method is still being improved 2D imaging is being replaced by 3D and 4D ultrasound Equipment for such studies is available in almost all medical institutions Diagnostics with their help takes literally a few minutes It is possible to record the study on a regular flash drive or other media