Objective To summarize and analysis CT characteristics of traumatic adrenal hematomas.Methods There were 22 cases ofadrenal hematomas.The size, distribution and density of the adrenal hematomas on CT scanning, and the complications of other visceralinjury were analysed.Results 23 adrenal hematomas were found in 22 cases, of them,16 were in right,6 in left and 1 in bilateral. Conclusion CT has high value in diagnosis of the adrenal hematomas.

Objective To assess the value of CT in diagnosis of recurrent rectal carcinoma.Methods Forty seven patients who had undergone locally curative surgery were examined by CT.All patients received intravenous contrast medium and two oral doses and a intrarectal doses of 500 ml 3% Ultravist were given.The characters of benign and malignant lesions were analysed in order to evaluate the value of the classification on CT in the differentiation of benign masses from malignant ones.Results 26 local recurrences occurred in 47 cases,including 13 cases with an round preasacral mass,8 cases with an irregular rectal wall thickening,2 cases with a flat preasacral mass,3 cases with a preasacral mass with low attenuation.The degree of enhancement of local recurrent masses was higher than that of benign masses.Conclusion The features of recurrence of rectal carcinoma on CT is an round or irregular asymmetrical preasacral mass or an irregular rectal wall thickening.It is useful way in diagnosis of recurrence of rectal carcinoma.

Objective To observe IL-2 and IL-6 changes in the breast tumor Bcap-37 cells reated by hematoporphyrin nonomethyl ether mediated photodynamic therapy (HMME-PDT).Methods Cells in logarithmic growth phase were collected among breast cancer cells cultured in conventional methods.According to blank control group or the experimental group (laser irradiation group,photosensitive agent group and HMME-PDT group),PDT in addition to HMME and HMME-PDT were conducted.The changes of IL-2,IL-6 were detected by radioimmunoassay.Results After HMME-PDT,IL-2 was increased as time passed.After 12,24 and 48 h,compared with IL-2 level in the control group,in laser irradiation group or photosensitive agent group,the levels of IL-2 in HMME-PDT group was significantly differences (P ＜ 0.05).But IL-6 levels decreased.The most obvious changes of IL-6 levels happened at 12h and 24h.There was significant differences between IL-6 in HMME-PDT group with the control group,laser irradiation group or photosensitive agent group (P ＜ 0.05).Conclusion HMME-PDT maybe have destruction effect by altering IL-2,IL-6 activity on breast tumor cells,which provides objective indicators for clinical patients to regulate immune function and auxiliary diagnosis.

Objective To study current status of health education and explore its pattern in community health-care service(CHS)in Shanghai.Methods A total of 200 health-care workers(HCWs)from five CHS centers in Shanghai were investigated by questionnaire of health education knowledge.Results Among 200 HCWs investigated,96.5%(193/200)of them have recognized importance of health education,98.0%(196/200)could undertake health education in their clinical work,only 60.5%(121/200)had receired regular training on it,and 85.5%(171/200)thought they should be further trained regularly.Correct awareness of knowledge was 94.O%.47.0%and 33.6%for health education perception,healthy life-style and health education knowledge for chronic disease.respectively in them.There was very significant difference in correct awareness of knowledge between HCWs with varied ages and districts(χ2=17.663 and 82.376,P=0.001 and 0.000,respectively),but no significant difierence was found between men and women and those with varied professional titles(χ2=0.015 and 2.406,P=0.903 and 0.300.respectively).Short of time(48.5%),lack of relevant knowledge(15.0%)in HCWs and poor compliance of patients(33.0%)were main factors influencing their implementation of health education.Conclusions HCWs in CHS have already recognized importance of health education.but have not known enough its theoretical knowledge and skills.It is necessary to set guidelines of health education intervention for HCWs in CHS,and perfect monitoring and evaluation.as well as mechanism for rewards and penalties to promote development of health education in CHS.

Objective To discuss the features of MRI and differential diagnosis of cerebral fat embolism syndrome(CFE).Methods The features of MRI of 4 final diagnosis cases of CEF were retrospectively analysed.Results MRI showed that there were spotty and patchy high T_2-weighted signals and some of them were low or equal signals on T_1-weighted.These signals were distributed in bilateral centrum semiovale,corona radiata,thalamus,deep part white matter of brain along the lateral ventricle,the cortex of brain of watershed,collose,brain stem and the hemisphere of cerebellum.The position of these abnormal signals was symmetric in the rough.The figure of the MRI signals in the midbrain liked the reverse Chinese number "eight".Brain swelling was showed in 2 of 4 cases.Conclusion There are some features of the CEF on T_2-weighted of MRI,but the history,the physical signal and the results of laboratory must be considered,and must be differential diagnosed with the diseases liking diffuse axonal injury,etc.

Objective To investigate the MR features of adenomyosis and its diagnostic value.Methods Forty-six patients with suspicious adenomyosis underwent preoperative ultrasound and MR exam.Inversion recovery sequence(IR)T 1-weighted images and turbo spin echo sequence(TSE)including T 1-weighted and T 2-weighted images were adopted.All patients were performed with contrast enhancement.Comparative analysis between MRI findings and pathology results was done. Results The diagnostic specificity,sensitivity and accuracy of MRI was 100%,94.74% and 97.14% respectively.The effect of MRI for diagnosis of adenomyosis was better than that of US significantly.All cases showed enlargement of uterus with regular contour.Diffuse and local thickening of junctional zone or low signal intensity lesion in outer myometrial layer was found on T 2-weighted images,sometimes bright foci observed in lesion on T 2-weighted images or on T 1-weighted images.Conclusion MRI has high value in gualitative diagnosis and localization of adenomyosis.It can be used as an important complementary method to ultrasound.

Objective To analyze the MRI manifestations of meningeal carcinomatosis, and to investigate the value of MRI in diagnosis of meningeal carcinomatosis.Methods The MRI data of 28 cases with proven meningeal carcinomatosis were reviewed retrospectively.Results 11, 8 and 25 cases were detected respectively on pre-contrast T 2WI and T 1WI of SE sequence , and post-contrast T 1WI.According to the manifestations of post-contrast MRI, meningeal carcinomatosis were divided into two types: dura-arachnoid enhancement(7 cases) and pia-subarachnoid space enhancement(18 cases) in accordance with the standard of Meltzer.Conclusion MRI, especially the post-contrast MRI is a reliable modality in diagnosis of meningeal carcinomatosis. Double dosage of contrast medium and thin slice thickness can provide more informations.

Objective To discuss the imaging diagnostic value using seven division for dystopic thymomas in mediastinum. Methods 11 cases of dystopic thymomas proved by biopsy and histopathology were analyzed based on chest radiography, computed tomography (CT) and magnetic resonance imaging (MRI) .Results According to nine division, 3 cases located in left mid-middle and mid-inferior mediastinum, 4 cases in right mid-middle and mid-inferior mediastinum, 4 cases in right ante-middle and ante-inferior mediastinum.While according to seven division,all cases (11) located in ante-inferior mediastinum. Conclusion Seven division of mediastinum is of great value in diagnosing dystopic thymomas and in guiding clinical management.

Objective To evaluate the correlation between the irradiation dose and superparamagnetic iron oxide (SPIO) enhanced MR imaging of the irradiated liver. Methods 25 rabbits were separated randomly into 5 groups. 3 days after focal irradiation (0, 10, 20, 30 and 40Gy), MR imaging was performed before and after SPIO injection with TSE-T 2W sequence, and the number of Kupffer cell containing SPIO particles was counted. The characteristics of MR enhancement were evaluated according to the pathological findings.Results The liver injury induced by no less than 30Gy irradiation can be detected by SPIO-enhanced T 2 weighted imaging (P

Objective To assess the value of contrast-enhanced computed tomography (CT) in the differentiation of benign solitary pulmonary nodules(SPN) from malignant ones.Methods Thirty-seven patients with solitary pulmonary nodules(≤3 cm phi)were examined by contrast-enhanced CT.Qualitative and quantitative characters of benign and malignant lesions were analysed after administration of Ultravist in order to evaluate the attenuation value of contrast-enhanced CT in the differentiation of benign SPN from malignant ones .Results A threshold value of 30 HU was selected on enhanced CT images to distinguish malignant( CT value≥30 HU)from benign( CT value