CT扫描在胸膜外孤立性纤维瘤中的诊断价值

目的探讨CT扫描在胸膜外孤立性纤维瘤(E-SFT)中的诊断价值。方法回顾性分析2015年4月至2018年4月于我院接受手术治疗的90例E-SFT患者术前CT检查影像资料和术后病理、免疫组织化学资料,评估CT检查在E-SFT诊断中的应用价值。结果 90例E-SFT患者均为单发肿瘤,免疫组织化学及病理学检查示良性80例,恶性10例;CT检查结果为良性72例,平扫表现为圆形或类圆形软组织密度影,密度不均匀,大部分边缘清晰,增强扫描表现为均匀强化;恶性18例,平扫示肿瘤体积较大,边界不清,密度不均,可见大片不规则低密度区,增强扫描瘤体强化不均匀,低密度区无明显强化;CT诊断的敏感度、准确度、特异性阳性率、阴性率分别为60%(6/10)、82%(74/90)、85%(68/80)、33%(6/18)、94%(68/72)。结论 E-SFT的CT检查影像图像具有一定的特征性,尤其是增强扫描有助于评估纤维瘤的良恶性,可将其作为术前诊断及术后复查评估的有效依据用于临床诊疗工作中。     

Enhancing medical radiation science education through a design science research methodology

Recently, there has been a call for research-informed and research-developed practice in health sciences education. This prompts the consideration of alternative suitable research approaches that could be used to enhance health sciences education practice, including medical radiation sciences education (MRSE) practice. In this discussion paper, the authors uphold design science research (DSR) methodology as a suitable research approach to enhance MRSE practice and research. An overview of the DSR methodology and an example of a project that used DSR methodology are presented to demonstrate the application of this methodology in MRSE practice and research. The paper concludes that the use of DSR methodology could be instrumental in addressing practice related challenges while developing a theoretical contribution to the discipline.     

Influence of respiratory allergy and restless sleep on definite sleep bruxism: a cross-sectional clinical study

ObjectiveThis cross-sectional clinical study evaluated the associations between sociodemographic, occupational, clinical conditions, psychological and sleep quality variables on definite sleep bruxism (SB).MethodsAll records obtained from adults (aged 20–60 years) and the elderly (aged >60 years) who had undergone polysomnography (PSG) at a private medical outpatients’ clinic from July 2017 to February 2018 were reviewed. Data from a questionnaire, based on the criteria of the American Academy of Sleep Medicine (AASM), were also gathered. Definite SB data pattern distribution was analyzed, and multivariate Poisson regression with robust variance was used to assess the associations between definite SB diagnosis, determined via PSG recordings, and the independent variables. A significance level of 5% was adopted.ResultsA total of 240 individuals were included in the study and the SB prevalence was 7.08% (n = 17). The adjusted Poisson regression analysis revealed association between definitive SB and individuals with respiratory allergy (PR = 3.63; 95% CI:1.01–13; P = 0.047) and restless sleep (PR = 2.97; 95% CI:1.04–8.50; P = 0.042).ConclusionThis study found associations between definite SB and clinical conditions (respiratory allergy) and sleep behavior (restless sleep). Knowledge regarding factors associated with definite SB can contribute to decision making in the clinical setting and management strategies involving a multidisciplinary approach.     

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目的对儿童血管迷走性晕厥(VVS)的传统诊断程序与新诊断程序进行卫生经济学评价。方法采用回顾分析方法,根据不同的诊断程序(即传统诊断程序和新诊断程序),将1995年1月至2005年5月北京大学第一医院儿科确诊的81例VVS患儿分为2组,分别计算其就诊费用、检查费用、住院日、确诊日等,运用经济学最小成本分析法进行评价。结果新诊断程序的平均就诊费用比传统诊断程序少耗费1668.80元;新诊断程序的平均就诊检查费用比传统诊断程序少耗费1413.30元。结论新诊断程序对确诊儿童血管迷走性晕厥具有良好的经济学效益,值得临床推广。