ULTRASONIC METHOD OF INVESTIGATION OF THE LOWER ALVEOLAR ARTERIES

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Background. The lower alveolar arteries are located in the canal of the jaw and are difficult to access, variable, and often located with facial ones in one area, which are larger in caliber and can «hinder» the search for lower alveolar arteries. Aim. Therefore, the purpose of our study was the development of the method of ultrasound examination of these arteries and the study of their blood circulation parameters in the norm. Results and Discussion. We performed ultrasonic triplex scanning of the lower alveolar arteries of 20 healthy people using the «Vivid E9» device of the company «GE Health Care», the blood flow parameters were determined. To interpret the parameters, we compared them with the parameters of the facial arteries. In the study of the facial arteries the following results were obtained: PS - 55.7±0.9 cm/sec, ED - 10.15±0.3 cm/sec, TAMX - 52.0±1.1 cm/s, PI - 1.32±0.06, RI - 0.77±0.03, PS/ED - 2.30±0.1, HR - 35.36±1.9 bpm. The parameters of the lower alveolar arteries: PS blood flow 57.96±0.7 cm/s; ED 5.47±0.1 cm/s; TAMX 17.22±0.5 cm/s; PI 3.05±0.1; RI 0.91±0.05; PS/ED 10.60±0.2; HR 69.48±0.4 bpm. Comparing the parameters, the peak systolic velocity, the pulsation index, and the resistance of the lower alveolar arteries were not significantly different from the indices of the facial arteries. The final diastolic blood flow velocity was 2 times lower in the lower alveolar arteries, the mean maximum speed was 2.5 times greater in the facial arteries, the systolic-diastolic ratio was 4 times higher in the lower alveolar arteries, the resistance index was 2 times greater in the lower alveolar arteries. Conclusions. Thus, we developed a technique for studying the lower alveolar vessels, blood flow indicators were obtained in them, which can be taken as average normal ones.