MRA Classification of the Artery Structures at the Base of the Brain / 中国医科大学学报

Objective To observe and classify the structure of the circle of Willis by using magnetic resonance angiographic(MRA)method. Methods A total of 2104 MRA head images from October 2013 to May 2015 in Shenyang Weikang Hospital was retrospective analyzed ,and the structure was classified by anterior circle or posterior circle according to the actual situation of the cerebral basilar artery. Results According to the origin of anterior cerebral artery and whether there was anterior communicating artery or not ,anterior circle was classified into three types:type Ⅰ,type Ⅱ and type Ⅲ. Type Ⅱ was classified into two subtypes,namely,type ⅡR and type ⅡL. Posterior circle,on the basis of whether there was posterior communicating artery or not,was classified into three types,which were type Ⅰ,type Ⅱ and type Ⅲ. According to the origin of posterior cerebral artery,type Ⅰ was classified into four subtypes,including type ⅠB,type ⅠC,type ⅠRC and type ⅠLC;type Ⅱ was classified into eight subtypes,including type ⅡBR,type ⅡBL,type ⅡCR,type ⅡCL,type ⅡRCR,type ⅡRCL,type ⅡLCR and type ⅡLCL;type Ⅲ was classified into four subtypes,including type ⅢB,type ⅢC,type ⅢRC,type ⅢLC. Conclusion There is a correlation among the different types of cerebral basi-lar artery,and each type of artery has their own sources of blood supply and the traits of communication compensation. When the anterior circle and posterior circle were both type Ⅲ,the complete ring structure of cerebral basilar artery,namely the circle of Willis,was formed. The existing rate of the circle of Willis was about 10.7%. Understanding of the differences among the individual types of arteries has great significance to the prevention and treatment of the cerebrovascular disease.

Influence Factors of Psychological Empowerment among the Teachers in Universities and Colleges / 中国医科大学学报

Objective to analyze the basic situation of university and college teachers′psychological empowerment,and investigate the effect of perceived organizational support,organizational identification,supervisory commitment on psychological empowerment. Methods the instruments which were used include perceived organizational support questionnaire(POS),organizational identification questionnaire(OIQ),supervisory com-mitment scale(SCS)and psychological empowerment scale(PES). A total number of 1 500 teachers were recruited conveniently from 6 university and colleges. Results the average score of psychological empowerment was 60.09±14.21. Positive correlation was found among perceived organiza-tional support,organizational identification,supervisory commitment and psychological empowerment(P < 0.05). Perceived organizational support, organizational identification and supervisory commitment explained 86.5% of variance of psychological empowerment. Conclusion Overall level of university and college teachers′psychological empowerment is in moderate or above degree. Perceived organizational support,organizational identifi-cation,and supervisory commitment can predict a deep level of psychological empowerment.

Investigation and Countermeasures for Network Moral Abnormality in Medical College Students / 中国医学伦理学

Based on the field questionnaire survey in different grade undergraduates in some medical colleges , this paper summarized the main performance of network moral abnormality in medical college students , and further analyzed the internal and external causes , thus put forward the countermeasures of strengthening medical college students′network moral education: innovate moral education methods and improve the moral quality of college students;strengthen the network legal system propaganda education , enhance the students′self -discipline con-sciousness;play a role of main channel and enhance the actual effect of network moral education ;meet the require-ments for the internet age and the construct a new administrative team; strengthen the position consciousness , es-tablish network moral education platform;strengthen the guidance function , carry out various kinds of network mor-al education.

Study of relationship between liver function and the enhancement degree of liver parenchyma in the hepatobiliary phase with Gd-BOPTA / 实用放射学杂志

Objective To explore the relationship between the MRI enhancement ratios of liver parenchyma in hepatobiliary phase with gadobenate dimeglumine (Gd-BOPTA)and liver function.Methods Fifty-nine patients who underwent Gd-BOPTA-enhanced MRI were retrospectively enrolled in the study.The enhancement ratio of signal to noise ratio and enhancement ratio of the contrast ratio were calculated.The relationships between the enhancement ratio and CTP grading and MELD score were analyzed.Results The signal enhancement ratios in hepatobiliary phase in patients with CTP A classification were higher than those with CTP B classi-fication (P <0.01).Meanwhile,the ratios in patients with MELD scores less than 10 points were higher than those with MELD scores more than 10 points (P <0.01).Conclusion The MR enhancement degree of liver parenchyma in the hepatobiliary phase with Gd-BOPTA may reflect the liver function.

The study of 99mTc-N(NOEt)2 imaging in experimental nasopharyngeal carcinoma mice models / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To evaluate the validity of 99mTc-N(NOEt)2 imaging in nasopharyngeal carcinoma mice model compared with 99mTc-MIBI imaging.@*METHOD@#Biodistribution of 99mTc-N(NOEt)2 were performed on Kunmin mice. Nasopharyngeal carcinoma BALb/c nude mice models were replicated by subcutaneous injection of CNE cells. After intravenous injection of 99mTc-N(NOEt)2 or 99mTc-MIBI images were acquired with SPECT, regions of interesting (ROI) were drawn to evaluate the uptake of 99mTc-N(NOEt)2 or 99mTc-MIBI in tumor imaging. Tumor to non-tumor ratios (T/N) were used as index of evaluation.@*RESULT@#Biodistribution study indicated most of 99mTc-N(NOEt)2 was accumulated in liver, kidney, lung and heart. The T/N values had no significant difference between 99mTc-N(NOEt)2 and 99mTc-MIBI at 30 min post injection. The peak T/N value of 99mTc-N(NOEt)2 reached at 120 min post injection. The best time for imaging was 120 min post injection. The T/N ratio was significantly higher in the group of 99mTc-N(NOEt)2 than that of 99mTc-MIBI at 120 min.@*CONCLUSION@#99mTc-N(NOEt)2 can be used for nasopharyngeal carcinoma mice model imaging. The best time of imaging is 120 min. 99mTc-N(NOEt)2 is a potential imaging agent for nasopharyngeal carcinoma.

On different operative methods for hypertensive intracerebral hemorrhage at different locations / 中国微创外科杂志

Objective To discuss effective methods for treating hypertensive intracerebral hemorrhage at the different sites. Methods Different operative methods were adopted in 85 cases of hypertensive intracerebral hemorrhage at the different sites from January 2001 to August 2003 in this hospital. Small fenestration and hematoma clearance under local intensify anesthesia was conducted in 40 cases of hemorrhage under the cortex or in the lateral area of the basal ganglia and without brain hernia; small incision trepanation with suction and drainage of hemorrhage under local intensify anesthesia was used in 26 cases of hemorrhage in the medial area of the basal ganglia without brain hernia; craniotomy and hematoma clearance under general anesthesia was adopted in 11 cases of preoperative brain hernia and 6 cases of cerebellar hemispheric hemorrhage; lateral ventricle external drainage was adopted in 2 cases of brain stem hemorrhage involving into the fourth ventricle and also in these cases with ventricle involved. Results The overall mortality rate was 12 9% (11/85). There were no deaths in cases of hemorrhage without brain hernia,under the cortex, in the cerebellum, in the brain stem or in the lateral area of the basal ganglia.The mortality was 29 0% (9/31) in cases of hemorrhage in the medial area of the basal ganglia and 45 5% (5/11) in cases of preoperative brain hernia, respectively. Conclusions Small fenestration and hematoma clearance under local anesthesia is effective for hemorrhage under the cortex or in the lateral area of the basal ganglia and without brain hernia. Provided surgical treatment is early and adequate, the prognosis of cerebellar hemorrhage is excellent. Small incision trepanation with suction and drainage under local anesthesia exerts no appreciable effect on hemorrhage in the medial area of the basal ganglia.