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Objective To explore the application of intraoperative ultrasound in intracranial lesion microsurgery operation.Methods Twenty-one cases of intracranial lesions were treated by microneurosurgical operation.The intraoperative ultrasound was adopted to scan and accurately locate the lesion position,judge the lesion character and observe the relation between the lesion border with the surrounding tissues.The lesion inside and surrounding blood flow situation was observed by color Doppler ultrasound.The lesion size,range and distance from the meninges were measured.Results All cases were accurately positioned under the ultrasound guidance,and all the lesions were removed by microsurgery.Conclusion Intraoperative ultrasound flexibly,real-time and accurately localizes the lesion,shortens the operation time,avoids unnecessary normal brain tissue damage,protects the nerve function,and improves the safety and efficacy of operation.
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Objective To evaluate the change of the amount of collagen in the viemedic RF ASC01IC non-ablative photorejuveantion,in order to provide reference for effective clinical treatment.Methods Twenty rats were randomly divided into two groups,with ten rats in each group.The rats'skin was dividied into two areas by spine.The left side was used as control,and the right side was experiment side,which was treated with RF by viemedic RF ASC011C for five times at interval of seven days,and ten minutes in each time.The content of collagen in the dermis was measured by immunohistochemical method,the thickness of collagen bundles in the dermis was measured under HE staining and the quantity of collagen fibers was compared by collagen fibers staining.Results Epidermis was more smooth,the collagen fiber was thicker and the content of fibroblasts,collagen was higher in experiment side.Image quantitative analysis showed significant improvement in area density of collagen fibers.Conclusions RF is a very safe and effective method for non-ablative photorejuvnation.