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Objective To investigate the value of conventional ultrasound and CEUS in the diagnosis of peripheral lung lesions.Methods Totally 120 patients with peripheral lung lesions found with chest CT were enrolled.Conventional ultrasound and CEUS were performed.The site,size,shape,echo and blood flow signals,as well as the adjacent tissue of lesions were evaluated with conventional ultrasonography.Then,the contrast enhancement pattern,degree and uniformity of lesions were observed with CEUS,and the time-intensity curve analysis was performed to obtain the relevant parameters,including the rise time (RT),peak intensity (PI),mean transit time (MTT),area under the curve (AUC),half washout time (TPH),clearance time and descending slope (DS).The above parameters of benign and malignant lesions were statistically analyzed.Results Among 120 cases,there were 52 benign and 68 malignant tumors.Statistically significant differences were found in morphological comparison between benign and malignant lesions (P＜0.05),while benign lesions were more multi wedge-shaped or triangular shape,and malignant lesions were more round or irregular shape.RT,DS and clearance time of benign and malignant lesions were statistically different (all P＜0.001),but there was no significant difference in PI,MTT,AUC and TPH (all P＞0.05).Conclusion Conventional ultrasound and CEUS can provide important information for diagnosis of peripheral lung lesions.
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Purpose To observe the changes of perineal body morphology and modulus of primiparas with real-time shear wave elastography (SWE) combined with gray-scale ultrasound and to explore the influence of delivery on perineal body tension. Materials and Methods One hundred and sixty primiparas after 42 to 56 days of delivery in the Department of Gynecology and Obstetrics of the First Affiliated Hospital of Nanchang University from December 2016 to August 2017 were enrolled and divided into cesarean section group (n=80) and vaginal delivery group (n=80). Meanwhile, 100 healthy married nulliparous women during the same period were selected as nulliparous group. Perineal body depth, height and Young's modulus were measured by using gray-scale sonography and SWE at resting state and retraction status. Values of each ultrasonic parameter were analyzed. Results Difference of perineal body depth and height contraction amplitude was of statistical significance among subjects in the three groups (P<0.05). The mean Young's modulus of perineal body during resting state and retraction status in nulliparous group was higher than those in the cesarean section group and vaginal delivery group, while that in cesarean section group was higher than that in vaginal delivery group. The differences were statistically significant (P<0.05). Conclusion Different delivery modes have different effects on female perineal body muscle, among which vaginal delivery is of more obvious damage to perineal body.
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篟esults of spontaneous and Squirrel Wheel activity tests in mice showed that Polysaccharopeptide ofCndolus vericolor could inhibit their spontaneous and squirrel wheel activities. Mice given intraperitoneal in-jections of PSP (100mg/kg or 200mg/kg)showed significant decrease of numbers of horizontal and vertical aswell as squirrel wheel activities (P