In this paper, from the current situation of the domestic use of superconducting MRI, on liquid helium supply and demand crisis in the market, the significance of the transformation without LHe of the superconducting MRI magnet was explained, and according to the enterprise's production process, a number of operating without liquid helium transformation practice and ideas were raised, important value orientation for the domestic manufacture and use of superconducting MRI was provided.
Equipment Design ; Magnetic Resonance Imaging ; instrumentation ; Magnetics ; instrumentation

Objective To investigate the effect of herbal foot-bath plus acupoint application on sleep quality of stomach cancer patients before surgery. Method Eighty eligible patients who were going to receive stomach cancer surgery were randomized into an observation group and a control group, 40 in each group. The control group was given psychological comfort plus switching off lights on time, while the observation group was additionally given herbal foot-bath plus acupoint application before the surgery. The sleep quality on the night before surgery was observed. Result There were significant differences in comparing sleep latency, night wakening, total sleep duration, total sleep quality, daily body function and total score (P<0.05). Conclusion Herbal foot-bath plus acupoint application can enhance the effective sleep duration and sleep quality of patients before stomach cancer surgery.

Objective To investigate the clinical efficacy of Zusanli moxibustion intervention in abdominal distention with enteral nutrition after stomach cancer surgery.Methods One hundred patients who had undergone stomach cancer surgery and received postoperative enteral nutrition were randomly allocated to treatment and control groups, 50 cases each. The control group received medication and the treatment group, Zusanli moxibustion in addition. Post-treatment incidences and grading scores of abdominal distention were compared between the two groups.Results The incidence of abdominal distention was 6.0% in the treatment group and 24.0% in the control group; there was a statistically significant difference between the two groups (P<0.05). The grading score of abdominal distention was (0.33±0.58) in the treatment group and (0.92±1.00) in the control group; there was a statistically significant difference between the two groups (P<0.05).Conclusion Zusanli moxibustion can effectively prevent the occurrence of abdominal distention in patients with enteral nutrition after stomach cancer surgery.

In this paper, from the current situation of the domestic use of superconducting MRI, on liquid helium supply and demand crisis in the market, according to the production process of the enterprise, taking the medical 1.5 T superconducting magnet as an example, the main design essentials of the helium-free magnet are introduced comprehensively, the feasibility of the helium-free magnet research and development are described, important value orientation for the domestic manufacture and use of superconducting MRI was provided.

Objective To evaluate the efficacy of the renal arterial embolization with lipidol and absolute alcohol emulsion in the treatment of renal tumors. Methods The superselective renal arterial embolization by using coaxial-cathaterization with infusion of lipiodol and absolute alcohol (in proportion of 2 ∶ 1) emulsion was performed in twenty patients with malignant and benign kidney tumors. 4 weeks later, the renal arteriography was taken routinely and repeated embolization was performed in case of necessary; and follow up was carried out periodically. Results The imaging findings showed thorough tumor necrosis and feeding vessel abruption in 18 cases after one session of treatment. The volume of tumors decreased more than a half in 13 patients (82.25%, 13 / 18) associated with a well-distributed lipidol inside the tumors. The second session of treatment was performed in other 2 patients and the clinical symptoms relieved obviously. Conclusions The superselective renal artery embolization with lipidol and absolute alcohol emulsion can permanently embolize all tumor feeding arteries in capillary vessel level with maximum reservation of renal function, providing definitively efficacy and worthwhile to be recommended widely.

Objective To study the effects of preconditioning treadmill exercise on excitatory amino vacid changes in rats after the cerebral infarction and the protective effects against cerebral isehemia brain injury. Methods Thirty Sprague-Dawley rats were used in this study. Twenty-five rats were subject to an operation to establish the animal model of middle cerebral artery occlusion and divided into a isehemia group, an 1-week ex- ercise group (trained in the 4th week) , a 2-week exercise group (trained in the 3rd and 4th weeks) and a 4- week exercise group (trained for 4 weeks) , while the remaining 5 rats were subject to sham operation, and served as the controls. After 4 weeks of experiment, all the the rats were fixed on stereotactie apparatus for the brain microdialysis of the striatum. Then the focal middle cerebral artery ischemia and reperfusion were made with thread oeclussion in rats and microdialysis technique was used to collect extraeellular fluid in each period of pre-ischemia, ischemia (40, 80 and 120 min), and reperfusion (40, 80, 120, 160, 200 and 240 min) to detect the changes of the excitatory amino acid. At the same time the infarction volume was also measured at 24 hours after ischemia-reperfusion of the brain. Results The difference between any two groups was significant with regard to the volume of cerebral infarction (P < 0.05). Two weeks and four weeks of the preconditioning treadmill exercise couled significantly reduce concentration of Glu excessively released due to the ischemia (P < 0.01). Conclusion At least two weeks of preconditioning treadmill exercise can inhibit the excessive release of the important excitatory amino acid neurotransmitter glutamate, to some extent, in the process of the subse- quent ischemic brain injury and during reperfusion, which might be one of the protective mechanisms of move- ment against the early isehemie brain injury.

Severe liver disease during pregnancy is uncommon in clinical practice. The most common cause of liver disease during pregnancy is liver dysfunction, with an overall prevalence rate of approximately 3%. Liver disease during pregnancy is classified into the liver diseases directly caused by pregnancy and those co-existing with pregnancy, i.e., pre-existing liver disease or occasional liver disease during pregnancy. A differential diagnosis of pre-existing and co-existing liver diseases may help to improve maternal and fetal outcome. During clinical diagnosis and selection of treatment and intervention measures, priority should be given to the potential impact on mother and fetus. This article introduces the latest research advances in the general information, pathogenesis, treatment, and pregnancy outcome of major liver diseases during pregnancy and elaborates on the risk of pregnancy and related coping measures for patients with pre-existing liver disease, so as to guide clinical diagnosis and treatment and patient management.

In this paper, from the current situation of the domestic use of superconducting MRI, on liquid helium supply and demand crisis in the market, the significance of the transformation without LHe of the superconducting MRI magnet was explained, and according to the enterprise’s production process, a number of operating without liquid helium transformation practice and ideas were raised, important value orientation for the domestic manufacture and use of superconducting MRI was provided.

Objective To study the influence of evidence-based nursing on postoperative adverse reactions,negative emotions and quality of life for aneurysms interventional therapy.Methods A total of 90 patients with intracranial aneurysm in our hospital were divided into study group and the control group (n =45) according to random number table method.The control group was given conventional nursing measures,and the study group implemented evidence-based nursing intervention.Postoperative adverse reactions,negative emotions and quality of life were observed.Results The incidences of adverse reactions were lower than that in the control group (P ＜ 0.05).The study group before discharge had lower SAS and SDS scores than the control group (P ＜ 0.05).Follow-up for 3 months,energy,physical activities,social life,sleep score in the study group were higher than that in the control group (P ＜ 0.05).Conclusion Evidence-based nursing can effectively reduce the probability of postoperative adverse reactions for aneurysms interventional therapy,relieve the patients'negative moods,and ensure the quality of life,so it is suitable for clinical promotion.

Objective To study the influence of evidence-based nursing on postoperative adverse reactions,negative emotions and quality of life for aneurysms interventional therapy.Methods A total of 90 patients with intracranial aneurysm in our hospital were divided into study group and the control group (n =45) according to random number table method.The control group was given conventional nursing measures,and the study group implemented evidence-based nursing intervention.Postoperative adverse reactions,negative emotions and quality of life were observed.Results The incidences of adverse reactions were lower than that in the control group (P ＜ 0.05).The study group before discharge had lower SAS and SDS scores than the control group (P ＜ 0.05).Follow-up for 3 months,energy,physical activities,social life,sleep score in the study group were higher than that in the control group (P ＜ 0.05).Conclusion Evidence-based nursing can effectively reduce the probability of postoperative adverse reactions for aneurysms interventional therapy,relieve the patients'negative moods,and ensure the quality of life,so it is suitable for clinical promotion.