Objective To assess the value of multi-slice spiral CT angiography (MSCTA) in diagnosis of posterior nutcracker syndrome (NCS). Methods MSCTA of 15 patients clinically diagnosed as posterior NCS (patient group) and 50 subjects with normal renal vessels (control group) were retrospectively analyzed. The anatomy, course and relationship to the adjacent structure of left renal vein (LRV) and its branches were observed. The anteroposterior diameter (d1) and cross areas (s1) of the angle of control group and posterior abdominal artery (AA), the anteroposterior diameter (d2) and cross areas (s2) at the largest lumen near the renal hilar were measured and the ratio of s2/s1 and d2/ d1 were calculated.Results All LRVs posterior AA of patient group were compressed and narrowing with dilating apparently near the renal hilar. The difference of d2 was not significant (P＞0.05), but of other values were significant (P＜0.05).Conclusion MSCTA can show anatomy and three-dimentional trend clearly of LRV for posterior NCS, and evaluate the extent of narrow and dilating lumen accurately with cross areas measuring.

Objective To evaluate the performances of high-sensitivity cardiac troponin I ( cTnI ) on VITRO ECIQ with enhanced chemiluminescence method .Methods This verification study validated the limited of detection,function sensitivity,imprecision,linearity of the high-sensitivity cardic troponin used VITROS ECIQ according to the document EP-17A, EP-6A,EP-15A published by Clinical and Laboratory Standards Institute (CLSI) and determined 99th percentiles.All 652 patients with chest pain on immediate admission in TEDA International Cardiovascular Hospital during January to November 2013 were enrolled in this study.Including 323 cases of acute ST segment elevation myocardial infarction and non ST segment elevation myocardial infarction patients as the case group , exclude 329 cases of other diagnosis ,303 cases of apparent normal people as control group .The receiver operating characteristic curve was used to evaluated the sensitivity and the specificity of cTnI . Non-normal distribution of quantitative data were used nonparametric test Mann-Whitney U, With P<0.05 for the difference was statistically significant .Results The LoB was 0.006 5 ng/ml and the LoD was 0.015 5 ng/ml;the FS was 0.016 76 ng/ml;repeatability CV
was 1.73 % -2.33 %, reproducibility CV was 4.93% -9.96%.The imprecision were lower than that declared by assay producer.The linearity was 0.015 5-78.4 ng/ml(R2 =0.999 9); the 99th percentile reference value was 0.017 ng/ml.The area under the curve ( AUC) of cTnI was 0.986,95%CI 0.973 -0.994,with the cut-off value as 0.017 ng/ml, the diagnostic sensitivity and specificity in CIN were 90.09%and 99.34%.Compared between STEMI and NSTEMI groups after admission , the levels of cTnI had no significantly difference , Z were -0.485, P >0.05;compared between STEMI and control groups after admission, the levels of cTnI had significantly difference , Z were -19.567,P<0.001;compared between NSTEMI and control groups after admission , the levels of cTnI had significantly difference , Z were-14.598,P<0.001.Conclusions High-sensitivity cardiac troponin I detection by VITROS ECIQ with enhanced chemiluminescence method has good performances of sensitivity , linearity, specificity, which meet the clinical needs.

Objective To investigate the value of ultrasound diagnosing for hydropneumothorax. Methods In a prospective double-blind randomized concurrent controlled trial. 213 patients doubted pneumotborax were exam-ined with CT, senography and conventional radiography. Results In 213 cases, hydropneumothorax diagnosed in 30 hemithoraces of 30 patients by CT,29 hemitboraces by ultrasound and 22 hemithoraces by X-ray. The sensitivity, nega-tive predictive value,accuracy by ultrasound and X-ray were 96.7% vs 73.3% ,99.8% vs 98.0% ,99.8 vs 98.1% respectively(P<0.05), the specificity and positive predictive value of both ultrasound and X-ray were 100%. Ultra-sound surpassed the X-ray in detecting pneumothorax ( McNemar test P<0.025 ). Conclusion If ultrasound is served to detect pneumothorax, it can make up the defects of the methods commonly used cuxrently.

Adolescent ; Adult ; Cyclophosphamide ; adverse effects ; Female ; Femur Head Necrosis ; etiology ; Humans ; Immunosuppressive Agents ; adverse effects ; Male ; Middle Aged ; Paraquat ; poisoning ; Young Adult

Chronic Disease ; Drugs, Chinese Herbal ; administration & dosage ; adverse effects ; therapeutic use ; Humans ; Male ; Prostatitis ; drug therapy ; Randomized Controlled Trials as Topic ; Suppositories

Adult ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Lead ; blood ; Lead Poisoning ; blood ; epidemiology ; Middle Aged

Objective To evaluate thri-operators and the blood-oxygen functional image technology in di-agnosing breast cancer. Methods One hundred and forty-six patients were admitted to hospital for operation due to one hundred and fifty-three suspicious lesions detected in their breasts. These lesions were detected by physical examination, thri-operators and the blood-oxygen functional image, mammography uhrasonography. The sensitivity and specificity of each diagnostic method were obtained and the radiolagie-pathologic correlation was meanwhile calculated. Results Sixty one(41.8%)breast lesions were diagnosed as malignancy. The sensitivity, specificity, accuracy,positive prognostic value and negative prognostic value of ultras onography were 80. 33% ,89. 41%,85.61% ,84.48% and 86.36%. Such data of mammography were 57.89% ,80. 36% ,69.03% ,75.00% and 65. 22%. And those of thri-operators and the blood-oxygen functional image technology were 91.80% ,83.53%, 86.99% ,80.00% and 94.67%. Conclusions Thri-operators and the blood-oxygen functional image technology is superior to uhrasonography and mammography in diagnosing breast lesions with its sensitivity accuracy and neg-ative prognostic value, while specificity and positive prognostic value were between them, have greater value in screeninging and the diagnosing breast cancer.

The role of 16-slice spiral CT was evaluated in the diagnosis of coronary stenosis, with selective X-ray coronary angiography (SCA) serving as the reference standard. Sixty-five patients who were suspected of having coronary heart disease, without percutaneous transluminal coronary angioplasty or coronary bypass-grafting, were investigated using 16-slice CT. Eight patients with pre-scan heart rate of more than 80 beats/min were given beta-blockers. After the retrospectively ECG-gated axial imaging reconstruction, volume redering (VR), multi-planar reconstruction (MPR), curved MPR and maximum intensity projection (MIP) were used to reconstruct. Every segment of coronary artery with a diameter > or = 1.5 mm was assessed, and the presence on CT with a stenosis exceeding 50% diameter reduction was compared with that on SCA. The reasons which lead to some segments unevaluable were analysed. Compared with SCA, 93% coronary segments and 94% main branches were evaluable. Residual cardiac motion artifacts, severe calcification and poor opacification made 58%, 28% and 14% of the remaining 60 segments unevaluable respectively. Without routine administration of beta-blockers, good coronary imaging quality can be acquired using 16-slice spiral CT. It is a reliable noninvasive method for detection of obstructive coronary artery disease.

Objective To investigate the clinical characteristics and risk factors of bacterial liver abscess (BLA) complicated with septicemia.Methods Fifty two BLA patients complicated with septicemia admitted in our hospital from January 2011 to December 2015 were retrospectively reviewed;and 52 cases of BLA without septicemia admitted at the same period were randomly selected as control group.The clinical manifestations, laboratory and radiographic findings, clinical outcome of these patients were analyzed.Logistic regression analysis was used to study the clinical features and risk factors of BLA complicated with septicemia.Results Compared to the control group, the BLA with septicemia group had higher prevalence rates in diabetes mellitus, malignant tumors, jaundice, albumin <35 g/L, BUN≥8.2 mmol/L, hyperglycemia, multiple abscesses and abscesses size ≥10 cm(P<0.05 or <0.01).The blood culture showed that K.pneumoniae(63.3%) was the most commonly isolated pathogen, followed by E.coli(16.7%).Univariate analysis revealed that diabetes mellitus(OR=2.200,95%CI 1.042-4.646), malignant tumors (OR=3.667,95%CI 1.023-13.143), albumin <35 g/ L(OR=2.800,95%CI 1.009-7.774), BUN≥8.2 mmol/L(OR=3.167,95%CI 1.265-7.929), hyperglycemia(OR=3.400,95%CI 1.254-9.216), multiple abscesses(OR=2.667,95%CI 1.043-6.815), abscesses size≥10 cm (OR=5.000,95%CI 1.096-22.820) were positively associated with bacterial liver abscess complicated with septicemia.Multivariate Logistic regression showed that abscesses size≥10 cm (OR=14.016,95%CI 1.354-145.070) was an independent risk factor for complication of with septicemia.Conclusion septicemia is a common complication for bacterial liver abscess, clinically effective measures shauld be taken to prevent and control risk factors associated with septicemia.

Objective To understand the prevalence and distribution characteristics of symptoms of anorectal diseases in Chinese residents(older than 18) as to provide reference for prevention,care and treatment of anorectal diseases.Methods Stratified sampling was used according to the economic level in every province in the country,and each province selected two cities.Face-toface interviews were used to collect data in 68 906 interviewers and SPSS 17.0 was performed to analyze the data.Results Of 68 906 respondents,25 634 (37.20 ％) reported to suffer from at least one symptoms of anorectal diseases.The prevalence of the top 5 main symptoms of anorectal diseases were prolapse of anus neoplasms(14.55％),anal sore(16.53％),anal pendant expansion (14.98 ％),perianal abscess (5.88 ％),hematochezia (22.52 ％).Each symptom frequency difference was statistically significant (x2=7 727.6,P＜0.001).Populations which proned to suffer from symptoms of anorectal disease had the following characteristics:living in city,male,ageing 25-54 years old,having specialist qualifications,lacking of physical.Conclusion The prevalence of symptoms of anorectal diseases among Chinese residents was high,and each symptom had its distribution characteristics.More targeted interventions should be taken in anorectal disease prone people.