简介: MenandwomengoouttogetheragreatdealinAmerica,especiallyinthecities.Theyskitogether,worktogether,dinetogether,eitheratrestaurantsorineachother'sapartments.Thisdoesnotmeanthattheyarenecessarilyinterestedinhavingsextogether,thoughitmayappearso,and,ofcourse,withsomemenandwomenitisso.……
简介:【摘要】:目的 探讨常规超声(US)联合超声造影(CEUS)对甲状腺微小乳头状癌(PTMC)的诊断价值。方法 于2019年10月至2021年5月期间我院接治的51名甲状腺微小乳头状癌患者,分为常规组(25名)和联合组(26名)。常规组行常规超声诊断,联合组行常规超声联合超声造影诊断。将两种诊断方法在临床中的使用效果予以对比,并分析。结果 联合组达峰时间、始增时间均高于常规组;联合组准确度92.3%(24/26)、特异性80.8%(21/26)、敏感度88.5%(23/26)均显著高于常规组60.0%(15/25)、40.0%(10/25)、52.0%(13/25);联合组误诊率0.0%(0/26)、漏诊率3.8%(1/26)显著低于常规组20.0%(5/25)、28.0%(7/25)。比对差异明显(P
简介:【摘要】:目的 探讨常规超声(US)联合超声造影(CEUS)对甲状腺微小乳头状癌(PTMC)的诊断价值。方法 于2019年10月至2021年5月期间我院接治的51名甲状腺微小乳头状癌患者,分为常规组(25名)和联合组(26名)。常规组行常规超声诊断,联合组行常规超声联合超声造影诊断。将两种诊断方法在临床中的使用效果予以对比,并分析。结果 联合组达峰时间、始增时间均高于常规组;联合组准确度92.3%(24/26)、特异性80.8%(21/26)、敏感度88.5%(23/26)均显著高于常规组60.0%(15/25)、40.0%(10/25)、52.0%(13/25);联合组误诊率0.0%(0/26)、漏诊率3.8%(1/26)显著低于常规组20.0%(5/25)、28.0%(7/25)。比对差异明显(P
简介:AbstractBackground:Applying ultrasonic imaging system during surgery requires the poring of saline, performing the measurement, and acquiring data from its display—which requires time and is highly "performer dependent," i.e., the measure is of a subjective nature. A new ultrasonic device was recently developed that overcomes most of these drawbacks and was successfully applied during tumor-in-brain neurosurgeries. The purpose of this study was to compare the two types of US devices and demonstrate their properties.Methods:The study was performed in the following stages: (i) an ex vivo experiment, where slices of the muscle and brain of a young porcine were laid one on top the other. Thicknesses and border depths were measured and compared, using the two types of US instruments. (ii) During human clinical neurosurgeries, tumor depth was compared by measuring it with both devices. (iii) Following the success of stages (i) and (ii), using solely the new US device, the tumor thickness was monitored while its resection. Correlation, Pearson’s coefficient, average, mean, and standard deviation were applied for statistical tests.Results:A high correlation was obtained for the distances of tissue borders and for their respective thicknesses. Applying these ultrasonic devices during neurosurgeries, tumor depths were monitored with high similarity (87%), which was also obtained by Pearson’s correlation coefficient (0.44). The new US device, thanks to its small footprint, its remote measurement, and the capability of monitoring intraoperatively and in real-time, provides the approach to tumor’s border before its complete resection.Conclusions:The new US device provides better accuracy than an ultrasonic imaging system; its data is objective; it enables to control the residual tumor thickness during its resection, and it is especially useful in restricted areas. These features were found of great help during a tumor-in-brain surgery and especially in the final stages of tumor’s resection.
简介:DuringtheearlydaysofTrump’sadministration,theMar-a-lagosummit,heldbetweenUSandChineseleaders,onceinjectedhigh-levelmomentumintobilateraltradetalksandlaidasolidfoundationforthereleaseoftheinitialactionsoftheChina-USEconomicCooperation100-DayPlan.ThebilateraltraderelationsbeganamicablyearlyinTrump’spresidency.However,theUSsoonbegantoplayhardballagainstChina,initiatinganti-dumpingandcountervailinginvestigationsandimposingpunitivedutiesonseveralChineseimports,andlaunchedtheSection301investigationonwhatitallegedwasChina’stheftofUSintellectualproperty.TheUSalsodeniedChina’smarketeconomystatus,promotedreformsthatgaveastrongerhandtotheCommitteeonForeignInvestmentintheUnitedStates(CFIUS),vetoedseveralmergersandacquisitionscasesinvolvingChineseinvestmentintheUSandinterferedintherelevantoperationsofChineseenterprises.Recently,ithasevenspearheadedChineseproductsandinvestmentinstrategichightechfields.ThispolicytransitionnotonlyembodiesTrump’s“AmericaFirst”principlebutalsoshowsthatnon-economicfactorshaveplayedanincreasinglyimportantroleinUSpolicy-making.