手把手教初学者学习医学影像学论文写作

青年学者常常在完成资料收集和分析之后对获得的结果充满了激情。然而,在开始写作论文时,这种热情常常锐减。事实也如此,国家级学术会议的论文数远高于最终发表的医学文献数。优秀的研究成果不能发表的原因2大多在于写作新手在开始写作时对写作的认识混乱和畏缩。一般产生畏缩的原因有2个:要么是研究者不知从何着手,要么是不知如何组织文章结构。不过,大部分放射学论文的写作均有规律可寻,在很大程度上是程式化的。本文试图介绍一种可应用于典型放射学论文的逐段写作法。如果初学者能够完成按照本文教授的18段写作,其论文将具有合理的结构,…     

Profiles and levels of fatty acid esters of okadaic acid group toxins and pectenotoxins during toxin depuration, Part I: Brown crab (Cancer pagurus)

In 2002, two outbreaks of diarrhetic shellfish poisoning (DSP) occurred in Norway, which was later confirmed to be caused by the consumption of brown crab (Cancer pagurus) contaminated predominantly by esters of okadaic acid (OA) after feeding on toxic blue mussels (Mytilus edulis). In addition to OA-group toxins, pectenotoxins (PTXs) are commonly detected in the toxin-producing algae (i.e. Dinophysis). In this paper, an experiment was set up to study the fatty acid ester profiles and depuration rates of OA-group toxins and PTXs from C. pagurus after feeding on M. edulis containing these toxin groups. OA, DTX1, DTX2 and PTX2 SA were all detected primarily in the form of fatty acid esters in the crab hepatopancreas (HP). Crabs preferentially assimilated toxins of the OA group after feeding on the mussels for 1 week. Detailed analysis of the fatty acid ester profile in crabs and mussels showed that the ester profiles in the crabs differed slightly from profiles of the fatty acid esters in M. edulis, but neither ester profile nor ester to free toxin ratio appeared to change in the crabs during the first 2 weeks of depuration. Calculations of depuration rates of the free forms of toxins resulted in similar reduction rates for OA and DTX2, whereas the depuration rate of DTX1, PTX2 and PTX2 SA was considerably faster. From the industrial perspective, the PTX-compounds are of minor importance compared to the OA group toxins in crabs, considering (1) the uncertainty regarding the oral toxicity of the PTXs, (2) the preferential ingestion of OA-group toxins compared to PTXs and (3) the faster depuration of PTXs.     

The application of a social cognition model in explaining fruit intake in Austrian, Norwegian and Spanish schoolchildren using structural equation modelling

Background  

The aim of this paper was to test the goodness of fit of the Attitude – Social influence – self-Efficacy (ASE) model in explaining schoolchildren's intentions to eat fruit and their actual fruit intake in Austria, Norway and Spain; to assess how well the model could explain the observed variance in intention to eat fruit and in reported fruit intake and to investigate whether the same model would fit data from all three countries.     

Management of urinary incontinence in gynecological practice in Norway

In order to investigate how Norwegian gynecologists manage female urinary incontinence in their daily practice, a questionnaire about six typical case histories was sent to the members of the Norwegian Gynaecological Association. The questionnaire comprised questions about investigations, use of laboratory tests and treatment options. Of 268 questionnaires sent out, 190 were returned (71%). Frequency-volume charts were recommended by 42% of the doctors and pad-weighting tests by 12%. Urodynamic examination was recommended for 55% of the cases, but mainly in mixed incontinence (76 and 77%). Pelvic floor exercises were suggested more often to younger patients than to the elderly. Drugs were infrequently suggested, mainly following appropriate indications. Drugs and pads were recommended especially for the elderly. The recommendation rate for surgical repair was higher for young age and greater degree of stress incontinence. The modest therapeutic ambition on behalf of the elderly women lacks basis in clinical research. A general management program for female urinary incontinence would possibly standardize and improve the quality of incontinence care by gynecologists in Norway.     

Attitudes to family practice registration programmes. Survey of Korean and Norwegian family doctors

BACKGROUND: In order to save money and improve continuity, many countries plan to introduce registration programmes and capitation. OBJECTIVE: The aim of this study was to explore family doctors' attitudes towards such programmes. METHODS: Random samples of board-certified Korean family doctors (n = 205) and Norwegian general practice specialists (n = 257) were included in a postal survey using a structured questionnaire with visual analogue scales. Main outcome measures were demographic characteristics, practice types, workload, level of agreement with 10 statements and explanatory variables for the principal attitude towards a registration programme (regression analyses). RESULTS: Overall response rate was 79%. Nineteen per cent [95% confidence interval (CI) 14-23%] of Norwegian and 96% (95% CI 93-99%) of Korean doctors were solo practitioners. Korean doctors reported 388 (95% CI 359-418) consultations per week and Norwegian doctors 83 (95% CI 80-87). Satisfaction with their present organization was lower in Korea (50%, 95% CI 46-53%) than in Norway (71%, 95% CI 68-74%). Korean doctors were more in favour of a registration programme (70%, 95% CI 66-73%) than Norwegian doctors (57%, 95% CI 53-61%). Main explanatory variables for being in favour of a registration programme were increased continuity (beta 0.495, P < 0.001) and dissatisfaction with the present system (beta -0.212, P < 0.001). In Korea, the prospect of more comprehensive care (beta 0.440, P < 0.001) and a positive attitude towards gatekeeping (beta 0.193, P < 0.001) were strong predictors, while Norwegian doctors favour a registration programme if it will not increase their workload (beta -0.166, P < 0.01). CONCLUSION: Regardless of nationality, most family doctors favour a registration programme.     

Biliary‐enteric bypass in unresectable malignant hilar biliary obstruction: Kwong Wah Hospital experience

Objective : To evaluate the efficacy of biliary‐enteric bypass in the palliation of malignant hilar biliary obstruction. Materials and Methods : Records of 19 patients from 1995 to 1998 were reviewed. There were 13 patients with cholangiocarcinoma and 6 patients with carcinoma of the gallbladder. Single biliary‐enteric bypass had been performed in 13 of the patients; the rest had more than one biliary‐enteric anastomosis. Results : The 30‐day mortality was 21% (4/19 patients). Bile leakage occurred in 2 patients, leading, in both, to fatality. Excluding the 30‐day mortality, the median survival of patients with carcinoma of the gallbladder and cholangiocarcinoma was 116 days (43–200) and 202 days (47–1207), respectively. The mean hospital stay was 31 days (13–59) and all patients were discharged with their symptoms relieved and a drop in bilirubin of at least two‐thirds their pre‐operative level. The late complication rate was 26.7% (4/15 patients). Conclusion : Biliary‐enteric bypass is effective in the palliation of symptoms of patients suffering from unresectable hilar biliary obstruction, although it carries considerable mortality and morbidity. Stenting, rather than surgery, should be considered for patients with unresectable gallbladder cancer.      

Tuberculous meningitis in children

Between May 1988 and November 1992 the data from 52 patients with tuberculous meningitis (TBM) were noted down for their symptoms and signs, BCG vaccines, PPD tests; clinical, laboratory, radiologic and microbiologic findings. These data were discussed by means of literature knowledge. Cranial computed tomography (CT) demonstrated hydrocephalus (HC) in 98% of the patients. There was a statistically significant difference among the clinical stages on admission in respect to prognosis (P < 0.05). In addition, there was also a significant relationship between prognosis and HC (P < 0.05). However, we did not find any significant relationship between parenchymal involvement, basilar meningitis and prognosis (P > 0.05).