Objective To review the principles and techniques of CT perfusion imaging and its applications in the imaging diagnosis of abdominal disorders. Methods All the relevant literatures were reviewed. The principles and techniques of CT perfusion imaging were described and summarized in detail. The functional information of a target abdominal organ (e.g. the liver and pancreas) revealed by CT perfusion imaging, such as hemodynamics and microcirculation status, was also evaluated. Results In addition to the morphologic information, CT perfusion imaging can also provide functional information about the circulation parameters of target abdominal organs. Moreover, such functional information can be generated for the neovasculature and microcirculation of tumor lesions of abdominal organs, which is very helpful for not only the diagnosis, but also the evaluation of tumor invasiveness and response to treatment. Conclusion CT perfusion imaging offers an effective method for studying abdominal disorders by providing functional information that is quite useful for the differential diagnosis and assessment of therapeutic response.

Analysis for 6 metals (Cd, Zn, Cu, Ni, Pb, Mn) by Atomic absorption spectrophotometer were made on hair samples of healthy 135 in urban area and 130 in rural area who have not dealt with the above metals in their daily working life. Marked variations were found. Samples of urban area contained more cadmium, copper, lead and manganese than those of rural area. No sexual difference in mean value could be observed and the amount of metals in hair did not increase with age. And no age dependency was found. There was a statistically significant correlation between the concentrations of cadmium and lead in both urban and rural people; Pb=1.50 Cd + 6.69 (r = 0.213, p<0.05) in urban area. Pb=1.44 Cd + 3.67 (r = 0.327, p<0.001) in rural area.
Absorption ; Cadmium ; Copper ; Hair* ; Humans* ; Manganese ; Metals

Treatment of diseases of the musculoskeletal system can be classified into conservative and surgical management. Injection therapy is one of the conservative methods, which is expected to improve symptoms or disease process by delivering effective medications directly to the involved site. If applied properly, it can be the treatment of choice considering the low cost. However, the natural course of the diseases varies widely, even in the same disease process. Therefore, some cases may be treated with simple rest, oral medication or other conservative measures, while others need sometimes surgery as the treatment of choice, especially of advanced diseases. So, we should bear in mind that injection therapy is just one of many treatment options, which should be employed with strict indications. Corticosteroids are the most frequently used agent for injection therapy. Many corticosteroid preparations are available for joint and soft tissue injection. Recently, the results of clinical applications with intraarticular preparations of hyaluronic acid have suggested some efficacy for degenerative arthritis. To achieve better results of injection therapy, the followings are the prereguisites: Accurate diagnosis Precise knowledge about the disease, indications, preparations of agent, complications and anatomy of the joints skillful technique
Adrenal Cortex Hormones ; Diagnosis ; Hyaluronic Acid ; Joints* ; Musculoskeletal System ; Osteoarthritis

Objective To compare the clinical effect of erythromycin and azithromycin in the treatment of mycoplasma pneumonia.Methods 120 children with mycoplasma pneumonia were randomly divided into study group and control group according to digital table method,60 cases in each group.The control group was treated with erythro-mycin,while the study group used azithromycin treatment.Clinical curative effect was compared between the two groups.Results The disappearing time of cough[(4.58 ±0.75 )d],fever[(4.75 ±1.74)d],pulmonary rales [(7.84 ±2.85)d]of the study group were significantly shorter than those in the control group[(4.58 ±0.75)d, (4.75 ±1.74)d,(7.84 ±2.85)d],and the differences were statistically significant (t =7.54,385,5.93,all P <0.05).The total effective rate in the study group (95.00%)was significantly higher than that in the control group (83.33%),and the difference was statistically significant (χ2 =8.08,P <0.05).There was no significant difference in the incidence of adverse reactions between the study group and the control group (χ2 =0.64,P >0.05 ). Conclusion Mycoplasma pneumonia in children for early diagnosis and treatment of dry,use of azithromycin curative effect was better than that of erythromycin.It could effectively relieve patients of fever,and alleviate the clinical symptoms of cough,pulmonary rales.

Objective To investigate the protective effects of Xuebijing(XBJ)on the injury of vascular endothelial cells(VEC)induced by lipopolysaccharide (LPS),and to study the mechanisms of the production of nitric oxide (NO)and the expressions of inducible nitric oxide sytnhase (iNOS)and signal transduction under XBJ intervention condition.Methods The cultured VEC were divided into control group, LPS (1 mg · L-1 )group, LPS (1 mg·L-1)+XBJ(25 g·L-1)group,LPS(1 mg·L-1)+pyrrolidine dithiocarbamate(PDTC,20μmol·L-1) group;XBJ and PDTC were administrated 1 h before incubation of with LPS.Western blotting method was used to detect the expressions of iNOS and NF-κB p65 protein.The level of NO in the supernatant was measured by Griess reagent.Results Comparaed with control group,the NO level and the expression levels of iNOS protein and NF-κB p65 protein in VEC in LPS group were significantly increased(P<0.01).Compared with LPS group,the NO level and the expression levels of iNOS protein and NF-κB p65 protein in VEC in LPS+XBJ group were significantly decreased (P<0.05 or P<0.01);the NO level and the expression levels of NF-κB p65 protein and iNOS protein in VEC in LPS+PDTC group were significantly decreased(P<0.05 or P<0.01).There were no significant differences of the NO levels and the expression levels of iNOS protein between LPS+XBJ group and LPS +PDTC group (P>0.05),but the expression level of NF-κB p65 protein in LPS+PDTC group was lower than that in LPS+XBJ group(P<0.05).Conclusion XBJ can inhibit the production of NO and the expression of iNOS protein in VEC;its mechanism may be related to inhibiting the activation of NF-κB to control inflammation.

Objective To introduce the new nomenclature scheme of the International Working Group (1995) on hepatic nodules, and summarize the imaging features of various hepatic nodules in light of their pathological characteristics, and evaluate the diagnostic values of various imaging facilities.Methods Ultrasound, computed tomography(CT), magnetic resonance imaging(MRI), and angiographic CT were reviewed and introduced.Results Many of these types of hepatic nodules play a role in the de novo and stepwise carcinogenesis of hepatocellular carcinoma(HCC) in the following steps: regenerative nodule, low grade dysplastic nodule, high grade dysplastic nodule, small HCC, and large HCC. Accompanying such transformations, there are significant alterations in the blood supply and perfusion of these hepatic nodules.Conclusion Modern state of the art medical imaging facilities can not only delineate and depict these hepatic nodules, but also provide important clues for the characterization of focal hepatic lesions in most cases, thus facilitating the early detection, diagnosis and management of HCC in its early stage.

Objective To explore the effect of osteopontin(OPN) as marker in colon cancer tissue and analyze the relationship between osteopontin and recurrence.Methods ELISA method was used to determine the serum levels of osteopontin in 58 patients with colon cancer(observation group) and 22 cases of normal subjects(control group);semi-quantity RT-PCR was used to detect the expression of osteopontin in tissues.The expression level of OPN mRNA in colon cancer tissue and serum OPN level in 23 recurrence cases and 35 non-recurrence cases one year after operation were observed.Results The OPN mRNA expression in colon cancer tissue and the serum osteopontin level in patients in observation group were higher than those in control group(P

Objective To study the effects of Tongxinluo capsule and Shen Mai injection in treatment of patients with acute myocardial infarction and its effects on level of left ventricular ejection fraction (LVEF),high sensitive C-reactive protein (hs-CRP),natriuretic peptide (BNP) and QT in acute decompensated heart failure ( QTcd) .Methods 82 patients with acute decompensated heart failure were selected in our hospital from May 2014 to April 2015, those patiens were divided into observation group and control group according to the method of lottery, 41 cases each group.The control group was treated with basic treatment and Huangxin injection, and the obsevation group was treated with Tongxinluo capsule on the basis of the control group.The changes of blood pressure, heart rate, LVEF, hs-CRP, BNP and QTcd were compared between the two groups before and after treatment. Results After treatment, the total effective rate of the observation group was significantly higher than the control group [92.68% (38/41) vs 60.97%(25/41)](P<0.05).The heart rate of the observation group was significantly lower than the control group (P<0.05), but the blood pressure level of the two groups had no significant difference.The levels of BNP, hs-CRP and QTcd in the observation group were significantly higher than the control group [(45.98 ±4.57)% vs(39.07 ±3.12)%](P<0.05) L, BNP, hs-CRP and QTcd were significantly lower than the control group [(2432.12 ± 114.32)ng/L,(17.32 ±1.87) mg/L, (34.76 ±3.02) ms vs (3565.87 ±174.76) ng/L, (14.08 ±1.23) mg/L,(38.45 ±3.86)].Adverse reactions were not observed in the observation group and the control group.Conclusion Tongxinluo capsule combined with Shen Mai injection can effectively increase the left ventricular ejection fraction and reduce hs-CRP, BNP and QTcd in patients with acute decompensated heart failure.The clinical curative effect is good and the safety is high.

Objective To assess value and limitations of non-invasive methods in assessing liver fibrosis.Methods By summarized current situation and advancement of serum fibrotic markers,ultrasound,CT and MRI in assessing liver fibrosis,we investigated their value and limitations.Results In addition to diagnosis,non-invasive methods of assessing liver fibrosis assess severity of liver fibrosis.For liver fibrosis,however,non-invasive methods can not monitor effectively reaction to therapy and progression.Conclusion Non-invasive methods play important roles in diagnosis and assessing severity of liver fibrosis,and reduce the need of liver biopsy.

Objective To review the current status of magnetic resonance imaging(MRI)techniques in the evaluation of hepatic fibrosis.Methods The application and recent advances of various kinds of MRI techniques in evaluating hepatic fibrosis were summarized by literature review.Results The state-of-the-art of MRI evaluating of hepatic fibrosis included common contrast-enhanced MRI,double contrast-enhanced MRI,and various functional MRI techniques.Common contrast-enhanced MRI could detect morphological changes of the liver,but little value in phasing.Double contrast-enhanced MRI markedly increased the contrast to noise ratio.Except diagnosis liver fibrosis,functional MRI also could phase it by its serverity.Conclusion MRI techniques,especially those functional MRI techniques,are advancing very fast and have very great potentiality in both the diagnosis and severity assessment of hepatic fibrosis.