目的 探讨FORCE CT实时迭代ADMIRE重建技术在肝脏CT扫描中的应用价值。方法 临床疑肝病患者50例,行FORCE CT肝脏平扫后,分别采用FBP重建和ADMIRE-1~5级重建,比较6组图像的平均CT值、噪声、SNR、CNR及图像质量的主观评分及诊断效能等。结果 比较6组图像显示,肝实质平均CT值无统计学差异(P>0.05);噪声、SNR、CNR及主观评分间均有差异(P<0.05),ADMIRE-5重建噪声最小、SNR、CNR最大。图像主观评分ADMIRE-1和ADMIRE-5图像评分低于FBP,ADMIRE-2~4高于FBP,绝对评分最高为ADMIRE-3重建,但六种重建图像对病变诊断效能一致。结论 肝脏CT平扫结合FORCE CT 实时迭代ADMIRE重建技术能有效降低图像噪声及提高图像质量,具有潜在降低扫描剂量的作用。

Objective: To discuss the value of ADMIRE reconstruction technique in the liver plain CT scan by the comparison of displays to the liver separately by ADMIRE and traditional FBP reconstructions after DSCT scan. Methods: 48 patients who were clinically doubted to have hepatic lesions were scanned by DSCT in liver, then six groups of images for FBP and ADMIRE 1-5 on the average CT value, noise, signal to noise ratio ( SNR ), contrast to noise ratio (CNR) and subjective scoring on image quality were compared. Results: 6 groups of images were compared,and the average CT value of liver parenchyma has no statistical differences (P>0.05);The differences were statistically significant (P<0.05)on noise, SNR, CNR and subjective scoring,ADMIRE5 reconstruction has the least noise and the largest SNR and CNR.For the images of ADMIRE1 and ADMIRE5, the image subjective scoring is lower than that by FBP; for the images of ADMIRE2 and ADMIRE4, the image subjective scoring is higher than that by FBP; and ADMIRE-3 has the highest score.But for the rate of lesion detection, all the images were the same. Conclusion: ADMIRE reconstruction strength 3 makes the best image quality.ADMIRE reconstruction can decrease noise and improve SNR and CNR,as well as have a potential effect decreasing the scan dose.

目的 通过比较二胎孕妇和初产孕妇心电图变化探讨其对妊娠结局的影响。方法 随机选取300例孕妇,其中150例二胎孕妇为观察组,150例初产孕妇为对照组。观察2组孕妇异常心电图的类型及发生率,分析异常心电图与妊娠结局的关系。结果 初产孕妇组异常心电图35例,心电图异常发生率为23.3%,二胎孕妇组异常心电图50例,心电图异常发生率为33.3%,两组心电图异常发生率差别有统计学意义(P<0.05)。二胎孕妇组窦性心动过速、室性早搏及ST-T改变的发生率显著高于初产孕妇组,差异有统计学意义(P<0.05)。二胎孕妇心电图异常组的剖宫产率和早产率均高于二胎孕妇心电图正常组、初产孕妇心电图正常组,差别有统计学意义(P>0.05)。结论 二胎孕妇易合并心电图异常改变,心电图异常会增加剖宫产和早产的发生率,临床医生在诊治此类患者时应提高警惕。

Objective To observe the relationship between electrocardiogram(ECG) and pregnancy outcomes of the second pregnant women. Methods Pregnant women were divided into two groups by parity history: the second pregnancy group and the Primipara group. The incidence of abnormal electrocardiogram was recorded, then the pregnancy outcome including the delivery mode and the premature birth rate were followed up. Results The incidence of abnormal ECG in the second pregnancy group was significantly higher than that in primipara group(P<0.05) and the incidences of Nodal tachycardia, Premature ventricular contraction, ST-T changes in the group of the second pregnancy were higher than that in the group of Primipara (P<0.05). The incidence of cesarean delivery and premature birth in the second pregnancy group with abnormal ECG group was significantly higher than that in pregnant women with normal ECG group (P<0.05). Conclusion The second pregnant women are more likely to have ECG abnormality, the pregnant women with abnormal ECG are easily suffer from cesarean delivery and premature birth.

目的 探讨无创呼吸机辅助常规药物治疗重症哮喘的疗效及对肺功能的影响。方法 选取我院于2014年2月—2017年6月间收治的60例重症哮喘患者作为研究对象,按照随机数字法分为对照组和研究组,对照组30例予以常规药物治疗,研究组30例予以无创呼吸机辅助常规药物治疗。比较两组患者临床疗效、肺功能指标、气血指标、心率、哮喘症状评分以及药物使用情况。结果 研究组临床有效率(96.66%)高于对照组(76.66%)(P＜0.05)。2组患者干预前肺功能指标、气血指标及心率比较无差异(P＞0.05),干预后两组心率、PaCO₂均较干预前降低,PaO₂、FEV1、FEV1/FVC均较干预前升高(P＜0.05),研究组较对照组改善明显(P＜0.05)。两组患者干预前哮喘症状评分比较无差异(P＞0.05),干预后两组哮喘症状评分均较干预前降低,且研究组较对照组降低明显(P＜0.05)。研究组使用茶碱类药物、糖皮质类激素、受体激动剂药物比例均低于对照组(P＜0.05)。结论 无创呼吸机辅助常规药物治疗重症哮喘可显著改善患者血气指标及肺功能,疗效确切。

目的 了解足月小样儿生后早期的潮气呼吸肺功能及1岁内发生喘息的情况。方法 选择我院2015年3月—2016年3月阴道分娩的足月小样儿及同期胎龄相近、阴道分娩的健康足月儿,比较2组生后5~7天的潮气呼吸肺功能各项指标及1岁内发生喘息的次数。结果 2组出生胎龄、性别、Apgar评分、母亲吸烟史、一级亲属中哮喘史比较均无差异;研究组中分钟通气量(MV)、潮气量(VT/kg)、达峰时间比(TPEF/TE)、达峰容积比(VPEF/VE)均低于对照组,差异有统计学意义(P＜0.05);呼吸频率(RR)、吸气时间(Ti)、呼气时间(Te)、吸呼比(Ti/Te)、潮气呼吸呼气峰流(PTEF)比较无差异(P＞0.05);研究组1岁内发生喘息的次数多于对照组,差异有统计学差异。结论 足月小样儿生后早期肺容量小于健康足月儿,小气道阻塞更明显,可能影响1岁内发生喘息的几率。

目的 探讨揭阳地区急性下呼吸道感染住院患儿病毒病原学特点。方法 对2 125例急性下呼吸道感染患儿应用直接免疫荧光法(DIF)进行A型流感病毒(甲型流感病毒IFA)、B型流感病毒(乙型流感病毒IFB)、呼吸道合胞病毒(RSV)、腺病毒(AdV)、副流感病毒1(PIVⅠ)、2(PIVⅡ)和3型(PIVⅢ)进行病毒学检测。结果 2 125例患儿鼻咽部分泌物标本中有538例检测出至少1种病毒,总阳性率25.3％,其中RSV 阳性率(19.7%)明显高于其他病毒,具有统计学意义。春、夏、冬季的RSV阳性率大致相当,明显高于秋季。婴儿期组RSV阳性率(27.2%)最高,幼儿期组(18.7%)次之,均显著高于学龄前期、学龄期,后2组阳性率无统计学差异,青春期组未检出RSV。结论 病毒是急性下呼吸道感染的重要病原体,而其中又以RSV为著,RSV感染具有显著的季节性和年龄特征性。

Objective To investigate the viral etiology feature in hospitalized children with acute lower respiratory infection in Jieyang area. Methods A total of 2 125 children with acute lower respiratory tract infection were screened by direct immune fluorescence assay (DIF) for influenza virus A (IFA), influenza virus B (IFB), respiratory syncytial virus (RSV), adenovirus (AdV), parainfluenza virus I (PIV Ⅰ), PIV Ⅱ and PIV Ⅲ. Results In 2 125 cases of nasopharyngeal secretory specimens, 538 cases were detected at least one kinds of viruses. The total positive rate was 25.3%, of which the positive rate of RSV (19.7%) was higher than that of other viruses. The positive rate of RSV was similar in spring, summer and winter, much higher than that in autumn.The positive rate of RSV in infancy group (27.2%) was the highest,then the second was the toddler's age(18.7%), both of which were higher than that in preschool age group and school age group. There was no significant difference in the positive rate between preschool age group and school age group. In addition, RSV was not detected in the adolescence group. Conclusion Virus is an important pathogen of acute lower respiratory tract infection. The most common virus is RSV, infection of which has seasonal and age characteristics.

目的 探讨品管圈活动提高出院产妇母乳喂养调查问卷在随访系统回复率中的效果。方法 成立“品管圈组织”,确立“提高出院产妇母乳喂养调查问卷在随访系统的回复率”为主题,对活动前2月~14月回复率低进行原因分析,拟定实施对策,比较实施前后问卷的回复率。结果 出院产妇母乳喂养调查问卷在随访系统的回复率由29.9%提高到了71.7%,差异有统计学意义(P<0.001)。结论 通过品管圈活动可提高出院产妇母乳喂养调查问卷在随访系统的回复率。

Objective To explore the application and effect of the quality control circle(QCC) on the response rate in the obstetric patient discharge questionnaire on breast-feeding in the follow-up system. Methods We set up a quality control circle, identified the project of improving the response rate in the obstetric patient discharge questionnaire on breast-feeding in the follow-up system, analyzed the reasons of the low response rate from February to April. Then, we established and implemented improvement measures and compared the result before and after implementation. Results The response rate in the obstetric patient discharge questionnaire on breast-feeding in the follow-up system was raised from 29.9% to 71.7% (P<0.001). Conclusion With application of QCC program, the response rate in the obstetric patient discharge questionnaire on breast-feeding in the follow-up system is improved.

目的 分析全科医学教学中应用第三方满意度调查,结合学生需求的实践效果。方法 2016年3—12月接收全科医学学生者60例,按照常规方法进行,2017年3—12月全科医学学生62例,教学中应用第三方满意度调查结合学生需求方法,观察教学效果。结果 第二年时,学生期末考试总成绩、病例题成绩、实习报告成绩,课外自学时间、利用网络自学时间、与他人讨论学习时间,教学效果总体评分、课间实习评分均高于第一年,差异有统计学意义(P＜0.05)。结论 全科医学教学中应用第三方满意度调查结合学生需求方法后,可有效的提升教学效果,增强学生的自学能力及自学意识。

Objective To analyze the practical effect of applying the third party satisfaction survey to the needs of the students in the teaching of general medicine. Methods From March 2016 to December 2016, 60 cases of general practice medical students were enrolled. According to the routine method, 62 cases of general medical students from March 2017 to December 2017 were selected. Third party satisfaction survey and student demand method were applied in teaching, and the teaching effect was observed. Results In th second year, students' final exam scores, the total score, case questions internship report scores, extracurricular self-study time, self-study time, learning time, using the network to discuss with othersthe teaching effect of practice during the total score, all above were higher than the first year, there was significant difference (P<0.05). Conclusion The application of third party satisfaction survey combined with students' needs method in general practice teaching may effectively improve teaching effect; enhance students' self-learning ability and self-learning consciousness.

目的 探讨品管圈活动在提高神经外科卧床患者便秘预防措施落实率中的的应用效果。方法 成立品管圈,确定以“提高神经外科卧床患者便秘预防措施落实率”为主题,进行现状调查,设定目标,进行要因分析,制定并实施措施,比较品管圈活动前后护士落实便秘预防措施情况。结果 实施品管圈活动后,神经外科卧床患者便秘预防措施落实率从活动前的41.59%上升至活动后85.6%,差异有统计学意义(P＜0.05)。结论 品管圈活动可以有效提高神经外科卧床患者便秘预防措施落实率,降低便秘的发生率,减轻患者痛苦,改善患者生活质量。

目的 观察ST段抬高型急性心肌梗死(STEMI)患者经皮冠状动脉介入治疗(PCI)中应用不同转运模式的应用疗效。方法 选取我院80例行急诊PCI的STEMI患者,有31例患者的12导联心电图由救护车上的急救人员通过手机微信传输到指定的东莞市大朗医院胸痛中心微信群(远程早期干预组),有49例患者自行来院就诊(传统就诊组),比较两组患者的临床疗效。结果 远程早期干预组患者的D-to-B时间低于传统就诊组(P<0.01),D-to-B达标率高于传统就诊组(P<0.01);远程早期干预组患者住院费用、平均住院天数、住院期间病死率及心力衰竭发生率均低于传统就诊组(P<0.05)。结论 相比较传统就诊模式,远程转运模式能显著提高STEMI患者PCI术的治疗效果,并有效改善其预后情况,临床效益较好,值得实践推广。

目的 探讨6野切线射野方式调强放疗(6F-IMRT)用于左侧乳腺癌根治术后放疗的临床价值。方法 纳入我院70例左侧乳腺癌根治术患者为研究对象,进行模拟CT增强扫描,三维重建后勾画大体靶区,分别对每个患者靶区设计4F-IMRT、5F-IMRT、6F-IMRT三种治疗计划,规定计划靶区(PTV)达到95%的处方剂量前提下,分析三种治疗计划PTV所受照射的平均剂量、最大剂量、最小剂量,95%、100%等剂量线包绕的靶区体积(V₉₅、V₁₀₀),适形度指数(CI)及剂量不均匀指数(HI),并比较三种计划下心脏、双肺、右乳受照射剂量。结果 各治疗计划靶区最大剂量、最小剂量、平均剂量比较无统计学意义(P＞0.05)。6F-IMRT的V₉₅、V₁₀₀均高于4F-IMRT、5F-IMRT,差异有统计意义(P＜0.05)。4F-IMRT、5F-IMRT、6F-IMRT的CI呈递增趋势,HI呈递减趋势,各组间比较差异有统计学意义(P＜0.05)。三种放疗计划中心脏的平均剂量、V₃₀,双肺的平均剂量、V₂₀、右乳平均剂量比较无显著差异(P＞0.05)。三种放疗计划中,4F-IMRT右乳V₁₀显著低于5F-IMRT、6F-IMRT,差异有统计学意义(P＜0.05),但均在最大耐受剂量范围内。结论 与4F-IMRT、5F-IMRT相比,6F-IMRT用于左侧乳腺癌根治术后放疗有明显剂量学优势,可提高靶区照射剂量,靶区适形程度及剂量均匀性均较好,而且并不会增加周围正常器官照射剂量。