Objective:To explore the effect of mirror visual feedback combined with exercise relearning in rehabilitation of upper extremity dysfunction after stroke.Methods:Patients with upper extremity dysfunction received stroke rehabilitation treatment in the Nanyang No. 9 People's Hospital from August 2016 to August 2018 were enrolled prospectively. According to the random number table method, they were divided into either mirror visual feedback combined with exercise relearning group (mirror therapy group) or exercise relearning alone group (control group). The rehabilitation treatment was 1-2 times a day, 5 d a week, and 1 week was a course of treatment, for a total of 4 courses. Fugl-Meyer Assessment (FMA) was used to assess upper extremity function. Carroll Upper Extremity Function Test (UEFT) was used to assess hand function. Action Research Arm Test (ARAT) was used to assess upper extremity operability and flexibility. Motor Assessment Scale (MAS) was used to assess the motor function of hands, fingers and upper extremities. Visual Analogue Scale (VAS) was used to assess upper extremities pain. The modified Barthel Index (MBI) was used to assess self-care ability in daily life. The modified Ashworth Spasm Scale was used to assess the degree of spasm of shoulder joints, wrist joints, and elbow joints. According to the FMA score, the clinical efficacy of both groups of patients was evaluated, and a score of >31 was defined as excellent.Results:A total of 60 stroke patients with upper extremity dysfunction were enrolled ( n=30 in the mirror therapy group and n=30 in the control group). There were no statistical differences between the two groups in age, gender, course of disease, stroke type, and stroke location, as well as each baseline score. After treatment, the FMA score, UEFT score, ARAT score, MAS score, MBI score and the proportion of the modified Ashworth grade Ⅰ and grade Ⅰ + were significantly higher than those before treatment in both groups (all P<0.05), while VAS score and the proportion of modified Ashworth grade Ⅲ and grade Ⅳ was significantly lower than those before treatment (all P<0.05). After treatment, FMA score, UEFT score, ARAT score, MAS score, MBI score, as well as the proportion of Ashworth grade Ⅰ and grade Ⅰ + in the mirror therapy group was significantly higher than that in the control group (all P<0.05), while VAS score and the proportion of modified Ashworth grade Ⅲ were significantly lower than those in the control group ( P<0.05). According to the FMA score, the excellent and good rate of treatment in the mirror therapy group was significantly higher than that in the control group (93.3% vs. 70.0%; χ2=5.455, P=0.020). Conclusions:The curative effect of mirror visual feedback combined with exercise relearning is superior to exercise relearning alone in rehabilitation therapy for upper extremity dysfunction after stroke.

Mycoplasma pneumoniae pneumonia (MPP) complicated with cerebral venous sinus thrombosis (CVST) is rare.We retrospectively analyzed the clinical data of two patients with refractory mycoplasma pneumoniae pneumonia (RMPP) complicated with CVST who were hospitalized in Xi′an children′s Hospital from December 2018 to April 2019, inquired the relevant literature, analyzed the clinical diagnosis and treatment characteristics, and discussed the diagnosis and treatment measures of RMPP complicated with CVST.Two cases were 6-year-old girls with fever and cough as the main symptoms.After physical examination, the respiratory sounds of the affected lung decreased, and the sounds of phlegm and dampness could be heard in both lungs.Mycoplasma pneumoniae (MP) antibody and RNA were positive.Chest CT showed lobar pneumonia with a large number of pleural effusion.The effect of macrolide antibiotics anti infection treatment was not good.Headache symptoms occurred during the course of the disease, and serum D-dimer increased significantly.Brain MRI showed CVST, including 1 case with lower extremity pain, and B-ultrasound showed right lower extremity arterial embolism.After anti infection, thrombectomy, anticoagulation and symptomatic treatment, 2 cases were discharged.When children with MPP, especially those with RMPP, have extracranial thrombosis and/or neurological symptoms, accompanied by elevated serum D-dimer, the possibility of CVST should be considered, and brain MRI examination should be performed in time to confirm and actively treat, which can reduce or avoid the occurrence of sequelae.Thrombosis may be related to excessive inflammatory reaction and vascular endothelial injury caused by MP infection.

In view of the shortage of research on the seismic performance of medical imaging equipment, this paper investigates and summarizes the seismic regulatory requirements and seismic tests of medical imaging equipment, and focuses on the parameter selection, detection steps, result evaluation and detection equipment requirements of seismic detection of medical imaging equipment. The seismic test data of medical imaging equipment with various installation modes are analyzed, and the seismic performance of medical imaging equipment is analyzed and summarized.
Diagnostic Imaging