Ultrasound Comparative Morphometry in Patients with Conventional Cholecystectomy

Abstract

In recent years, in various fields of clinical medicine, a low-cost, highly informative method of ultrasound (synonyms: echography, sonography, ultrasonography) has have become widespread, diagnostic value, which is confirmed by the works of many domestic and foreign authors [1,4,6,7,8,10,11]. Ultrasound is elastic vibrations of particles of a material medium with a frequency of more than 20 kHz, i.e. above the threshold of perception by the human ear. Modern ultrasound equipment is based on the principle of echolocation, and all diagnostic devices operate in pulsed mode. It is important to know that in the emitting mode, the device's sensor works only 0.1% of the cycle time, while in the receiving mode - 99.9%. This rhythm of work is one of the factors that determine the safety of ultrasound examinations. Ultrasonography allows diagnosing hypertrophic diseases of the gallbladder, such as adenomyomatosis and cholesterol. The polypoid form of gallbladder cholesterol is especially well detected, and it is always necessary to conduct a differential diagnosis with cholelithiasis. The main difference is that the cholesterol polyp(s) do not produce an acoustic shadow and are not displaced by the position of the patient's body changes.