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Objective@#To analyze the impact of life satisfaction and parental rearing methods on accidental injuries of primary and secondary school students in rural areas, and to provide a therotical reference for injury prevention and intervention among primary and secondary school students in rural areas.@*Methods@#A stratified cluster random sampling method was used to select 2 045 rural primary and middle school students in Luliang County, Yunnan Province, questionnaire survey regarding injury, MSLSS and EMBU was administered.@*Results@#The incidence of accidental injury among rural primary and middle school students was 16.19 %, and the rate of boys (19.51%) were higher than that of girls (12.26%) ( χ 2=19.69, P <0.01). Multivariate Logistic regression analysis found that women, low injury risk behavior scores, and high life satisfaction scores were associated with less accidental injuries( OR =0.62, 0.98,0.81), while day to day school and father s overprotection were associated with more for accidental injuries( OR =1.50, 1.04, P <0.05).@*Conclusion@#Parents should pay more attention to children s safety education while creating a good living environment for their children, but they should pay attention to their own education methods to reduce accidental injuries.
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Objective To evaluate the clinical application of regulating bone removal ratio in dual-energy cerebral subtraction angiography.Methods A total of 45 patients who underwent two phases dual-energy CT angiography (CTA) were recruited and divided into several groups by the value of bone removal ratio,as follows: group A (Ratio=1.6), group B (Ratio=1.7), group C (Ratio=1.8) and group D (Ratio=1.9,default), as well as group E (100kV Neuro-DSA).The image quality of dual-energy CTA was evaluated by double blind method according to bone suppression and integrity of the vessel lumen (1-5 points, 1=poor, 5=excellent, 3-5=satisfactory).The bone removal ratio dependence of the image quality was analyzed using the self-control method.Moreover,the signal-to-noise ratio (SNR),contrast-to-noise ratio (CNR) and image scores were compared with the Neuro-DSA subtraction among these groups.Results The overall satisfaction of basis cranii images that were executed by dual-energy CTA with different bone removal ratios was listed as below: group A 73.33%, group B 91.11%, group C 78.52%, group D 70.37%.The satisfaction of siphon segment and petrous segment reached the maximum when the value of ratio was 1.7,and with significantly difference (P0.05).Conclusion With optimal bone removal ratio,the single enhanced dual-energy subtraction image quality with flash dual-source CT is consistent well with that of conventional 100 kV Neuro-DSA subtraction.Thus,this method is recommended in clinical emergency cerebrovascular examination for the improved image quality,which can compensate the shortage of vascular defect in basis cranill.
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Objective:To explore and assess the clinical application and clinical value of dual helical CT and magnetic resonance imaging (MRI) in the diagnosis of knee bone tumor. Methods: Sixty-nine patients with knee bone tumors were randomly divided into three groups: group A, group B and group C. Group A was detected by double-helical CT scanning; group B was detected by MRI; group C was detected by dual-helical CT scan combined with MRI. After the end of the testing, the clinical diagnostic results of the three detection methods were compared.Results: There was no significant difference between group A and B (x2=0.825,P>0.05). The detection rate of group C was higher than that of group A. The differences were statistically significant (x2=2.936,x2=3.718;P<0.05). The detection rate of group C was significantly higher than that of group B. The differences were statistically significant (x2=3.967,x2=4.285;P<0.05).Conclusion: Double helical CT combined with MRI can effectively improve the clinical detection rate of knee bone tumor.
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Objective To assess the feasibility of double phase subtraction angiography with second generation (128-slice )dual-source CT in low dose Flash spiral scan mode for the evaluation of cerebral vessel,compared with dual-energy subtraction angiogra-phy.Methods 60 patients underwent double phrase CT angiography were divided into group A (n = 30,with Flash spiral scan mode),group B(n=30,with dual-energy scan mode).The signal-to-noise ratio(SNR),the contrast-to-noise ratio(CNR)and the av-erage radiation of double phrase subtraction images were measured in two groups,respectively.The double phase subtraction images quality were graded by 2 independent readers on a 5-point scale(5=excellent)in double-blind,according to various degrees of the re-sidual bones,the vessel displayed and luminal integrity,respectively.Differences between two groups were analyzed by Mann-whit-ney test and t test.Results The double phrase image SNR showed no difference to both two groups(P >0.05).The image CNR of arterial and venous phase in group A were higher than that of group B(40.89±8.89 and 40.27 ±9.90 in group A vs 35.28 ±8.43 and 34.89±8.66 in group B;P 0.05).The vessel image scores of arterial phase were higher in group A than that of group B(4.93±0.25 vs 3.87±0.97;P <0.05).Some internal carotid in the base of skull has not good luminal integrity in group B.The mean dose length product (DLP)in group A was lower than that of group B,with a 39 percent reduction[(226±5.69 )mGy/cm vs (368 ± 21.35 )mGy/cm,P < 0.05 ].Conclusion With the roughly similar image quality to dual-energy double phase subtraction angiography,the cerebral vessels can be assessed using dual-source CT subtraction angiography in Flash spiral scan mode and a lower radiation dose.
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Objective To observe the clinical efficacy and reverse reactions of acupuncture combined with paroxetine hydrochloride in the treatment of mild or moderate depression. Methods The patients with mild or moderate depression (n=73) were randomly divided into control group (treated with paroxetine hydrochloride,n=33) and observation group (treated with acupuncture and paroxetine hydrochloride,n=40). The therapeutic course lasted for 6 weeks. The total score changes of Hamilton Depression Scale (HAMD) were observed before treatment and treated for 1, 2, 4 and 6 weeks. Rating Scale for Side Effects (SERS) was evaluated before treatment and treated for 2, 4, 6 weeks.Results The total effective rate of clinical efficacy in the observation group was 78.95% (30/38) and the control group was 68.75% (22/32), without significant difference between the two groups (P>0.05). The scores of HAMD decreased 4, 6 weeks after the treatment in the control group and 2, 4, 6 week after the treatment in the observation group compared with those in the same group before the treatment (P<0.05,P<0.01). There was a significant difference in HAMD scores between two groups after the treatment for 4 weeks (P<0.05). The scores of SERS showed a significant difference 4, 6 weeks after the treatment between the two groups (P<0.05).Conclusion Acupuncture can improve the curative effect of paroxetine hydrochloride and decrease its side effects in the treatment of depression.
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Objective To investigate the effect of chaishao chengqi decoction and mirabilite synthesis treatment for patients of severe acute panereatitis (SAP). Methods 62 cases of SAP were randomly divided into treatment group (n = 32) and control group (n = 30). Conventional treatment was administrated to control group, while chaishao chengqi decoction and mirabilite were added to treatment group. The duration of abdominal pain, the time of the first bowel, days of gastrointestinal decompression, average days of hospitalization, hyperamylasemia, complication and mortality was compared. Results The duration of abdominal pain, the time of the first bowel, days of gastrointestinal decompression, average days of hospitalization and complication rate were (5.8 ± 2.5) d, (1.84 ± 0. 67) d, (8.2 ± 2.2) d, (21.2 ± 12.5) d and 15.6% in treatment group,respectively, which were lower than those in the control group (P <0.05). Duration of hyperamylasemia (10.2 ± 3.2d) and mortality rate (3.12%) in treatment group was lower than those in the control group without statistic difference (P > 0. 05). Coucluslons Based on conventional therapy, chaishao chengqi Decoction and mirabilite could improve gastrointestinal function of SAP, shorten course of disease, reduce the occurrence of complication and improve the prognosis.
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Objective To improve work efficiency and lower management cost. Methods Based on experiences from the 95th hospital in six years, PACS application benefits were analysed from such seven aspects as digital film management,economic benefit, efficiency and quality of diagnosis, evidence support for solving medical dispute,simplified treatment procedures, social effect, and remote disgnosis. Results Better economic benefits and social effect were obtained. Conclusion It is proved by practice that construction of PACS in small & midium-sized hospitals is necessary and feasible.
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Objective To evaluate the long-term curative effect of bronchial artery embolization on massive hemoptysis in patients with pulmonary tuberculosis. Methods Bronchial arterial embolization with PVA grain and silk segment was performed in 42 cases of patients with hemoptysis of secondary pulmonary tuberculosis. Of them, 27 cases were bilateral pulmonary tuberculosis and 15 lateralized. The bloody bronchial arteries were confirmed by bronchial arteriography, and the PVA grains or silk segments were injected slowly into the target vessels until hemorrhage stopped. Results After one time embolization, hemoptysis stopped immediately in 34 cases, 7 cases still had little hemoptysis,and one case of hemorrhage was unable to be controlled. The short-term efficacious rate was 97.6%,and no severe complications occurred. Followed up 6 months to 7 years after treatment,24 cases were clinical cure,7 cases obviously effective,5 cases effective,and 6 cases recurrent.The long-term effective rate is 85.7%. Conclusion Embolization of bronchial artery with PVA grain and silk segment was a safe and effective method for controlling hemoptysis of pulmonary tuberculosis, and its combination with anti-tuberculosis treatment could consolidate the curative effect.
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Imitating the structure of coupled biological nervous system, artificial neural network (ANN) can be applied to pattern analysis, signal procession and etc. This paper mainly explains physical concepts to make the medical students and workers familiar with the neural network, especially ANN and its applications to the detection and analysis of medical image.