1. Diagnostic value of diffusion tensor magnetic resonance imaging in patients with cerebral infarction
Chinese Journal of Cerebrovascular Diseases 2006;3(10):450-453
Objective: To analyze the characteristics of diffusion tensor magnetic resonance imaging in patients with cerebral infarction and to explore the values of diagnosis and predicting prognosis of diffusion tensor imaging (DTI) in patients with cerebral infarction in different stages. Methods: Forty patients with cerebral infarction in different stages and 40 healthy volunteers were examined by magnetic resonance imaging (MRI), including conventional T1 and T2-weighted imaging, diffusion-weighted imaging and DTI. Fractional anisotropy (FA) images were reconstructed. The values of FA and apparent diffusion coefficient (ADC) were measured in the infarcted regions, corresponding contralateral normal regions and corresponding normal regions in normal control group. Results: DTI showed that the size of infarction foci was more accurate and clearer than that of the conventional MRI. The FA values of the infarcted regions, infarcted ipsilateral posterior limb of internal capsule, cerebral peduncle, and corticospinal tract in cerebral infarction group were 0.12 ± 0.01, 0.29 ± 0.03, 0.36 ± 0.12 and 0.35 ± 0.04, respectively. They were lower than those in the contralateral corresponding regions 0.35 ± 0.08, 0.50 ± 0.13, 0.53 ± 0.14 and 0.56 ± 0.07, and they all had significant differences (P < 0.05). There were no significant differences between the ADC and FA values at the uninjured sides in patients with cerebral infarction as compared with the corresponding regions in the normal control group (P > 0.05). The FA and ADC values in brain tissues changed regularly with the time of infarction after cerebral infarction. The FA values in the affected sides had no consistent changes as compared with the contralateral sides in the superacute phase. They increased or decreased slightly, then (during acute stage, subacute stage and chronic stage) decreased irreversibly; the ADC values in the affected sides changed with time regularly; they decreased significantly; then gradually returned to normal, and after that increased again. Conclusion: DTI examination contributes to the diagnosis of cerebral infarction. The combination of the ADC and FA values may more accurately conduct clinical stage and evaluate the time of the occurrence of cerebral infarction.
5.The MSCT findings of greater omentum blunt trauma
Feng WEN ; Zhenguo ZHAO ; Qiang GU
Journal of Practical Radiology 2014;(10):1661-1664
Objective To improve the accuracy of diagnosis of the greater omentum blunt trauma(GOBT)by analyzing the MSCT findings and pathological features.Methods The MSCT appearances of 5 1 cases of GOBT with operation and (or)pathological con-firmed were analyzed retrospectively.All patients were underwent MSCT plain scan in whole abdomen.Two experienced radiolo-gists blinded to the clinical diagnosis,reached a diagnosis from the MSCT findings by two ways of plain and plain joint post-process-ing MSCT images.The detection rates of GOBT were compared by two-related-samples Fisher exact probability chi-square test.Re-sults Fifty-one cases of GOBT were distributed over the intestine,in the superior abdominal cavity,the left and the right abdominal cavity,those cases were 27,18,3 and 3 respectively.The MSCT findings of GOBT mainly consist of greater omentum(GO)streak-ing,GO hematoma and fluid around GO.Those detectable rates were 80.3%,68.6%and 90.2 % respectively.The accuracy in di-agnosis of GOBT with MSCT was 94.1%(48/51)in our study.The detection rate of GOBT by two ways was significant (P=0.04).The detection rate of GOBT was increased obviously by the way of plain joint post-processing MSCT images.Conclusion MSCT manifestations of GOBT has some characteristics.A more accurate diagnosis of GOBT could be made according to the MSCT findings by plain joint post-processing MSCT images.
6.The relationship between the changes of plasma D-dimer and prognosis in patients with acute cerebral infarction
Qiang XIANG ; Kun LI ; Liang WEN
Journal of Third Military Medical University 2003;0(07):-
Objective To observe the relationship between the changes of plasma D dimer in pathogenic course and prognosis in patients with acute cerebral infarction(ACI). Methods Changes in plasma D dimer levels of 93 patients with ACI and 20 cases healthy persons were detected dynamically by Latex semi quantitative method. The relation between D dimer levels and focus size, severity of infarction and prognosis were analyzed. Results There was significant difference( P
7.Effects of endotoxin preconditioning on inflammatory response after global brain ischemia in rats
Qiang XIANG ; Liang WEN ; Qiangguo GAO
Journal of Third Military Medical University 2003;0(07):-
Objective To determine the protective effects of endotoxin preconditioning on the brain ischemic injury and explore its protective mechanism. Methods Global ischemia for 20 min by four-vessel occlusion model was used in 140 Wistar rats, in which 70 rats were pretreated with MPL at dose of 20 ?g/kg 24 h before global ischemia. Another 10 Wistar rats served as normal controls. Ischemic neurons and neuron density of the hippocampal CA1 region, MPO activity, TNF-? activity, IL-1? activity were assayed at 4, 12, 24, 48, 72, 120, 168 h after reperfusion. Results Pretreatment with endotoxin produced significant reductions in ischemic neuron number, MPO activity, TNF-? activity and IL-1? activity. Conclusion Endotoxin preconditioning protects brain from subsequent ischemic injury, in which the suppression of cellular inflammation may be the protective mechanism.
8.Analysis of gemcitabine combined with cisplatin in the treatment of non-small cell lung cancer and psychological intervention
Ruizhi YE ; Lin ZHENG ; Qiang WEN
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):218-219
Objective To study the effect of gemcitabine combined with cisplatin in the treatment of non-small cell lung cancer.Methods 100 cases of non-small cell lung cancer patients who were treated in our hospital from March 2015 to August 2016 were selected as the subjects in this study.They were randomly divided into the control group and the experimental group, with 50 cases in each group.The control group were treated with gemcitabine combined with cisplatin, and routine nursing care was used.The experimental group were given psychological intervention on the basis of gemcitabine combined with cisplatin treatment, pay attention to the psychological status of patients, medical staff should strengthen communication, inform the relevant knowledge of disease, eliminate the negative emotions, improve the treatment compliance.Anxiety scores and satisfaction between the experimental group and the control group were compared.Results After the corresponding nursing, the treatment satisfaction of the control group was 72.0%, which was lower than that of the experimental group, and the satisfaction rate was 92.0%, the difference was statistically significant (P<0.05).After the intervention, the anxiety score of the experimental group(36.83±4.23)was significantly lower than that of the control group(42.12±3.41), and the difference was statistically significant (P<0.05).There was no significant difference in survival rate between the two groups after a follow-up of 1 years.Conclusion Gemcitabine Combined with cisplatin in the treatment of non-small cell lung cancer, the application of psychological intervention nursing can help patients to eliminate anxiety in a large extent, improve patient satisfaction, with further clinical promotion and application significance.
9.Application of a cementless modular revision femoral prosthesis for Vancouver B2 periprosthetic femoral fractures
Qiang LI ; Liang WEN ; Yuan LIN
Chinese Journal of Orthopaedics 2017;37(15):929-935
Objective To evaluate the clinical effects in treating periprosthetic femoral fractures classified Vancouver B2 with a cementless modular revision femoral prosthesis.Methods Twenty-six patients (7 males and 19 females with mean age of 66.5 years,range 60-69 years) who suffered from periprosthetic femoral fractures classified Vancouver B2 were treated with a cementless modular revision femoral prosthesis in hip revision and open reduction and internal fixation with cables or plates from March 2007 to February 2014.The previous femoral prostheses included 21 cementless and 5 cemented hip stems.The period from former procedures to fractures was 16 months,range from 7 to 32 months.Harris hip scores and numerical rating scales were analyzed statistically.Time of leaving bed,discharging,fracture union postoperative complications and radiographic imaging were also recorded.Results The operation duration were 143 (range 105-165) minutes.Blood loss volume was 450 (range 270-780) ml.Blood transfusion volume were 330 (range 0-800) ml.All patients were followed up at least two years,averagely 3.5 years after surgeries.All fractures healed at 6.5 (range 3-12) months averagely after surgeries.Harris hip scores improved significantly from 11.8±2.5 before surgeries to 80.3±5.3 one month and to 91.4±7.3 six months after surgeries separately (F=0.715,P=0.001).Numerical rating scales were 9.6±0.3,9.4±0.4 and 9.1±0.7 points averagely in aspect of information acquisition,postoperative pain control and function recovery respectively one month after surgeries.Average time of leaving bed and discharging from surgeries was 68.3 (range 51-75) hours and 6.5 (range 5-9) days respectively.No postoperative complications was found except dislocation in 1 hip,lower limb discrepancy in 1 hip,DVT in 1 hip,and heterotopic ossification in 3 hips.Conclusion Due to achieving prosthetic stability and fracture union,periprosthetic femoral fractures classified Vancouver B2 treated with a cementless modular revision femoral prosthesis combined with open reduction and internal fixation with cables or plates can reach good clinical outcomes.
10.Non small cell lung cancer patients with multiple brain metastases with erlotinib combined with whole brain radiation therapy clinical observation and effect of C on vascular endothelial growth factor level
Lidan LIU ; Ruizhi YE ; Qiang WEN
Chinese Journal of Biochemical Pharmaceutics 2017;37(9):269-270
Objective To study the analysis of non-small cell lung cancer patients with multiple brain metastases with erlotinib combined with whole brain radiation therapy clinical observation and effect of C on vascular endothelial growth factor level. Methods 40 cases of non - small cell lung cancer patients with multiple brain metastases treated in Taizhou tumor hospital from January 2015 to April 2016 were selected and randomly divided into the control group and the experimental group, with 20 patients in each group. The control group and the experimental group patients were given clinical treatment of whole brain radiotherapy, the control group was given routine treatment, the experimental group received erlotinib. The clinical effects of the 2 groups were compared and analyzed. Results After the corresponding treatment, the experimental group of 20 patients, 8 cases of complete remission, 7 cases of partial remission, the number of effective treatment for 15 cases, the treatment rate was 75.0%. Of the patients in the control group, 6patients had complete remission, and 4 patients had partial remission. The effective rate was 50%. Available, the effective rate of the treatment group (75.0%) was significantly higher than that of the control group (50.0%), with statistical difference (P<0.05). The survival rate of the experimental group after one year (80.0%) was significantly higher than that of the control group (60.0%), with statistical difference (P<0.05). The level of vascular endothelial growth factor (C) in the experimental group was significantly lower than that in the control group (P<0.05). Conclusion Non small cell lung cancer patients with multiple brain metastases with erlotinib combined with radiotherapy in the clinical treatment effect of whole brain is better, can improve the survival rate in a large extent, improve the endothelial growth factor C levels, with the further promotion of the clinical significance.