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In this article, dexmedetomidine (Dex) was used to prevent neurological disorders in patients anesthetized with sevoflurane and the effect was analyzed using ultrasound images based on the restoration algorithm of the linear system model. Children injected with Dex were in the experimental group, while children injected with normal saline were in the control group. The mean arterial pressure (MAP), arterial oxygen saturation (SpO 2 ), heart rate (HR), Pediatric anesthesia agitation scale (PAED) score, Face, Legs, Activity, Cry, Consolability (FLACC) score, and adverse drug event (ADE) in the two groups were compared before the injection (T1), at 5 min (T2), 10 min (T3), and 20 min (T4) after the injection, and when the patient came to himself (T5). It was found that in contrast with the control group, the MAP in the experimental group at T2, T3, and T4 periods was lower, while it was higher at T5 period and its HR at T2, T3, T4, and T5 periods was higher ( P   <  0.05); the PAED and FLACC scores were lower ( P   <  0.05), and the incidence of ADE (10.53%) was lower than that in the control group (31.58%) ( P   <  0.05). However, SpO 2  at different periods showed no obvious differences between the two groups ( P   >  0.05). In conclusion, the restoration algorithm-based ultrasound images had high quality, and they demonstrated good application value in evaluating the effect of Dex to prevent neurological disorders in patients anesthetized by sevoflurane.

Ultrasonic Image Restoration Algorithm for Prevention of Nervous Disorders during the Recovery Period of Patients Receiving Sevoflurane Anesthesia