2.Biblimetric study of schistosomiasis literature based on Web of Science
Pin YANG ; Jing DAI ; Shi GAO ; Shizhu LI ; Huifeng SHENG
Chinese Journal of Schistosomiasis Control 2010;22(1):20-25
Objective To understand the progress in schistosomiasis resoareh over the last l0 years through a biblimetrie approaeh.Methods The literature was searched in Web of Science citation database (1998-2008)by using the following terms: schistosomiasis* or schistosoma or schistosome. The searching results were analyzed by the Derwent Analytics software concerning the article numbers and the total citations by countries,institutes and authors, and journal distribution, in an effort to discover schistosomiasis research progress in and outside China. Results The annual number of schistosomiasis articles published in Web of Science had little change from 1998 to 2008.The US phyed a leading role in the schistosomiasis research in the world.China had made a great progress in schistosomiasis research in the past years.but Was still lagging behind developed countries.The vaccine and drug development,the immune mechanisms resulting in morbidity were the focuses of schistosomiasis research in the world.Meanwhile.the transcriptome and proteome of Schistosoma japonicum,schistosomiasis vaccines and drugs,spatial epidemiology Were the focuses of research in China.Conclusion The research of schistosomiasis in China has been progressing rapidly,but is still lagging behind its international peers.
3.Diagnostic value of focal liver lesions by contrast-enhanced ultrasound: compare with contrast-enhanced CT
Yu XIA ; Yuxin JIANG ; Qing DAI ; Ke Lü ; Pin GAO
Chinese Journal of Ultrasonography 2008;17(7):576-580
Objective To investigate the diagnostic value of contrast-enhanced ultrasound (CEUS), and compare it with contrast-enhanced CT(CECT). Methods Eighty-one focal liver lesions were evaluated with CEUS and CECT, diagnostic value of two modalities were calculated, vaseularity manifestations of two modalities in arterial phase were compared. Results The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of CEUS were 96.6 %, 86.9 %, 94.9 %, 90.9 %, 93. 80%, respectively, and the diagnostic value of CECT were 98.3%, 82. 6%, 93.4%, 95.0%, 93.8%, respectively. Among all the metastasis, hypervascular manifestation lesions in arterial phase of CEUS and CECT were 72% (18/25) and 32% (8/25)( P <0.05). Conclusions The diagnostic value of CEUS and CECT in focal liver lesions are comparably satisfying,and there is no significant difference between them, the combination use of two modalities would improve the diagnosis performance. CEUS can show more hypervaseular metastasis than CECT in arterial phase.
4.Training doctors for people health: teaching preventive medicine for clinical medicine students in Fudan medical college
Pin-pin ZHENG ; Wei-xia PENG ; Jun-ming DAI ; Hua FU
Shanghai Journal of Preventive Medicine 2021;33(2):182-
Preventive medicine is a required course for students majoring in clinical medicine, which is essential for them to understand public health. Teaching teams of Fudan University have focused on the curriculum reform of preventive medicine and kept innovating with the aim of improving the competence of future doctors. Flipped classroom approach was adopted to promote interaction between teachers and students. In addition, a variety of practice sectors were integrated into teaching process, such as diet calculation through graph cards, health risk appraisal practice, hospital visiting. In addition, a 4-weeks community-based practice further strengthened students' understandings of public health in the real world. Much attention was on cultivate scientific spirit, humanity and the capability to serve the people. A multi-dimension, whole-process evaluation is applied and the results shows that the students' comprehensive ability and literacy are significantly improved.
5.Study of endometrial carcinoma by using contrast-enhanced ultrasound
Zhenzhen LIU ; Yuxin JIANG ; Qing DAI ; Sheng CAI ; Jiaxin YANG ; Pin GAO
Chinese Journal of Ultrasonography 2008;17(7):604-607
Objective To observe the enhancement pattern and time-intensity curve of endometrial carcinomas by using contrast-enhanced ultrasound(CEUS). Methods Altogether 30 endometrial carcinomas were evaluated with real-time gray-scale CEUS, using pulse inversion harmonies technique. The enhancement patterns were observed. Twenty tumors were compared for the size between traditional ultrasound and CEUS. In 21 cases, the parameters of time-intenaity curve were compared between the endometrial lesion and un-involved myometrium. Results The contrast agent arrived at the feeding vessels firstly and then branched into the endometrial tumors. All of the endometrial tumors were enhanced completely except for the necrosis area. In 73.3 % (22/30) of cases, the tumors washed out earlier than the un-involved myometrium. By using CEUS 76. 7% (23/30) of cases showed the feeding vessels of tumor. 43.3% (13/30) of cases showed more clearly than traditional ultrasound in tumor base, position and boundary. The mean enhancement sizes of tumor were bigger than the size showed by traditional ultrasound in 85% of cases by (0. 62±0.50)cm. More than 90% cases showed the tumors start to enhance and wash-out earlier than or at the same time as myometrium. The arrival time and peak time of cancer group were significantly earlier than myometrium group. The peak intensity, enhancement intensity and the rising rate of the tumor group were significantly higher than those of the myometrium group. Conclusions There are some characteristic points in CEUS of endometrial carcinomas. CEUS can provide richer information in tumor imaging than traditional ultrasound and has certain clinical value.
6.Logistic regression analysis of the features of thyroid nodules on gray scale and color Doppler ultrasound
Bo ZHANG ; Yuxin JIANG ; Qing DAI ; Jianchu LI ; Qingli ZHU ; Pin GAO ; Tiehua CHENG
Chinese Journal of Ultrasonography 2008;17(12):1061-1065
Objective To evaluate and screen out the specific characters of thyroid nodules on grayscale and color Doppler ultrasonography. Methods One hundred and four thyroid nodules in 95 patients were studied with gray-scale and color Doppler ultrasound before surgery.According to the probability of malignancy,the main independent characters were screened out by Logistic regression analysis and then got the formula which could calculate the probability of malignancy.Results Fifty three nodules,included 44 hyperplasia,7 adenomas,1 switch granuloma and 1 Hashimoto's disease,were benign.Fifty one nodules,included 47 papillary carcinomas,3 medullary carcinomas,1 metastatic carcinomas,were malignant pathologically.The significant characters to differentiate malignant from benign were the shape,margin,border,halo,echostucture,echogenecity,echo uniformity,calcicum,bolood vessel shape and partial abnormal rich blood of thyroid nodules.After two variables logistic regression analysis,a fomula were worked out.Probability of malignancy=1/1+e-z,which z=-7.44+1.30×halo+1.05×calcicum+1.5×vessel shape.If a thyroid nodule with no halo,microcalcicum and irregular vessel shape,the probability of malignancy was 0.99,while with complete halo,no calcicum and regular vessele shape,the probability of malignancy of the nodule was 0.02.Conclusions The halo,calcium and blood vessel shape of thyroid nodules were three independent characters of thyroid nodules to predict malignant thyroid nodules on gray scale and color Doppler ultrasound.
7.Perspectives on governance for health and Healthy City development
Hua FU ; Ying-nan JIA ; Jun-ling GAO ; Jun-ming DAI ; Pin-pin ZHENG
Shanghai Journal of Preventive Medicine 2020;32(1):12-
The paper highlights the three key words:city, health and development.On the one hand, it is necessary to understand the city with systematic thinking, to focus on the health gap and health equity of different populations in the same city, and the continuous spectrum of health indicators or disease distribution in the same population.On the other hand, it is suggested to establish a "participatory governance" model in Healthy City development-government for health, to further promote the development of healthy cities.Finally, it briefly introduces the report of "Healthy City 2.0-Towards a Planet City" presented by Professor Hancock at the 23rd International Conference on Health Promotion of IUHPE, 2019 in New Zealand.
8.Application of real-time gray-scale contrast-enhanced ultrasound in the diagnosis of benign and malignant breast lesions.
Jing ZHANG ; Yu-Xin JIANG ; Qing DAI ; Qiang SUN ; Ke LÜ ; Li TAN ; Pin GAO
Acta Academiae Medicinae Sinicae 2008;30(1):49-53
OBJECTIVETo observe the patterns of benign and malignant breast lesions using real-time gray-scale contrast-enhanced ultrasound and assess its value in the differential diagnosis of begign and malignant breast tumors.
METHODSTotally 116 breast lesions (benignity n = 63; malignancy n = 53) underwent real-time gray-scale contrast-enhanced ultrasound. The patterns of their enhancement were assessed from 6 aspects: degree of enhancement, process of enhancement, completeness of enhancement, homogeneity of enhancement, boundary of the enhanced lesions, and exhistance of radial enhancement around the lesions. The results were compared with the pathologic findings.
RESULTSContrast-enhanced sonographic patterns were significantly different between benign and malignant breast lesions. Most malignant lesions were non-centripetally, incompletely, and inhomogeneously enhanced. After having been injected with the microbubble contrast medium, the boundary of the lesions became unclear, and the radial enhancement around lesion were mainly seen in the malignant lesions.
CONCLUSIONThe patterns of real-time gray-scale contrast-enhanced ultrasound are remarkably different between malignant and benign breast lesions, showing promising values for its clinical application.
Breast Neoplasms ; diagnostic imaging ; Contrast Media ; administration & dosage ; Diagnosis, Differential ; Female ; Humans ; Microbubbles ; Ultrasonography, Mammary
9.Diagnosis of thyroid nodules with ultrasound-guided fine needle aspiration: comparison of solid lesion and complex lesion
Wen-bo LI ; Qing-li ZHU ; Yu-xin NG JIA ; Bo ZHANG ; Qing DAI ; Pin GAO ; Di YANG ; Jian SUN ; Xiao-ping XING ; Xiao-lan LIAN
Chinese Journal of Ultrasonography 2011;20(8):680-683
Objective To compare the efficacy of ultrasound-guided fine-needle aspiration(US-FNA)biopsy in diagnosing solid and complex thyroid nodules with different size. Methods One hundred and seventy-five thyroid FNA biopsies were prospectively performed on 168 patients ranging from 4 to 75 years of age. Sixty-three nodules were surgically excised and the others were clinically followed-up. The cytology diagnoses were categorized into four groups: benign, malignant, suspicious and unsatisfactory. Results There was no significant complication in the all 115 solid and 60 complex thyroid lesions and there were 36and 3 malignant nodules respectively in solid and complex thyroid nodules. The nondiagnostic rates of solid and complex nodules were 7% and 8%. The accuracy of US-FNA in diagnosing complex thyroid nodules was comparatively equal to that of in solid thyroid nodules. In solid thyroid nodules, the sensitivity and accuracy in ≤1 cm group were similar to that of in >1 cm group. Conclusions US-FNA was an accurate and reliable method to diagnose thyroid solid and complex lesions.
10.Serum and Pleural Fluid Procalcitonin in Predicting Bacterial Infection in Patients with Parapneumonic Effusion.
Yang Ching KO ; Wen Pin WU ; Chi Sen HSU ; Mong Ping DAI ; Chien Chih OU ; Chih Hsiung KAO
Journal of Korean Medical Science 2009;24(3):398-402
This study evaluated the value of procalcitonin (PCT) levels in pleural effusion to differentiate the etiology of parapneumonic effusion (PPE). Forty-one consecutive PPE patients were enrolled and were divided into bacterial and non-bacterial PPE. Blood and pleural effusion samples were collected for PCT measurement on admission and analyzed for diagnostic evaluation. PCT of pleural fluid was significantly increased in the bacterial PPE group (0.24 ng/mL) compared to the non-bacterial PPE group (0.09 ng/mL), but there was no significant difference for serum PCT. A PCT concentration of pleural fluid >0.174 ng/mL (best cut-off value) was considered positive for a diagnosis of bacterial PPE (sensitivity, 80%; specificity, 76%; AUC, 0.84). Pleural effusion PCT in the bacterial PPE is significantly different from those of the non-bacterial PPE and control groups, so the diagnostic use of PCT still warrants further investigation.
Aged
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Bacterial Infections/*diagnosis
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Calcitonin/*analysis/blood
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Diagnosis, Differential
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Female
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Humans
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Male
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Middle Aged
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Pleural Effusion/*diagnosis
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Pneumonia/*diagnosis
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Predictive Value of Tests
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Protein Precursors/*analysis/blood
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ROC Curve