经颅磁刺激(transcranial magnetic stimulation,TMS)是基于电磁感应原理的一项非侵入性神经调控技术,具有无创、安全、耐受性好等优点,在精神和神经疾病的临床应用方面取得极大进展。但其刺激靶点如何选择和定位、其对脑网络功能连接...经颅磁刺激(transcranial magnetic stimulation,TMS)是基于电磁感应原理的一项非侵入性神经调控技术,具有无创、安全、耐受性好等优点,在精神和神经疾病的临床应用方面取得极大进展。但其刺激靶点如何选择和定位、其对脑网络功能连接会产生什么样的影响以及脑网络状态又如何影响TMS的临床效果尚处于探索之中。血氧水平依赖的功能磁共振成像(functional magnetic resonance imaging,fMRI)能检测到大脑活动,且具有空间分辨率高、非侵入性及无辐射等优势。鉴于fMRI的优势,fMRI和TMS结合(fMRI-TMS)已越来越多地在临床和科研中得到应用。本文就fMRI-TMS在靶点的精确和个性化定位、在脑功能网络方面的研究进行综述,并对fMRI-TMS的局限性及未来发展进行简单阐述。展开更多
Immune thrombocytopenia(ITP)is an acquired disease characterized by isolated thrombocytopenia,which is one of the most common causes of thrombocytopenia during pregnancy.Women with ITP who have severe thrombocytopenia...Immune thrombocytopenia(ITP)is an acquired disease characterized by isolated thrombocytopenia,which is one of the most common causes of thrombocytopenia during pregnancy.Women with ITP who have severe thrombocytopenia are at an increased risk for life-threatening obstetric complications.Therefore,we established this consensus statement on the diagnosis and management of ITP during pregnancy(detailed information is available in the Supplementary File,http://links.lww.com7CM9/A978).展开更多
文摘目的探讨基于压缩感知容积扫描(compressed sensing volumetric interpolated breath-hold examination,CS-VIBE)的动态对比增强磁共振成像(dynamic contrast enhanced-magnetic resonance imaging,DCE-MRI)在甲状腺结节良恶性鉴别诊断中的价值。材料与方法回顾性分析重庆大学附属肿瘤医院2020年9月至2021年5月行甲状腺DCE-MRI检查的患者病例,共纳入结节84个,其中恶性结节43个、良性结节41个。测量DCE-MRI定量参数:转运常数(volume transfer constant,Ktrans),血液回流常数(rate constant,Kep),血管外细胞外间隙容积分数(extracellular space volume fraction,Ve),初始曲线下面积(initial area under curve,iAUC)。比较各定量参数在良恶性结节中的差异,采用二元逻辑回归分析进行参数联合鉴别良恶性结节,并通过受试者操作特征(receiver operating characteristic,ROC)曲线获得各参数和联合参数的曲线下面积(area under the curve,AUC),计算预测模型的敏感度和特异度。结果甲状腺恶性结节的Ktrans(P<0.001)、Kep(P<0.001)、iAUC(P=0.001)值均大于甲状腺良性结节,组间差异具有统计学意义;Ve值(P=0.177)组间差异无统计学意义。联合参数预测甲状腺恶性结节的敏感度为83.33%、特异度为73.81%,准确度为73.80%,AUC为0.807。结论基于CS-VIBE的DCE-MRI对于甲状腺结节良恶性鉴别具有较好的诊断价值。
文摘经颅磁刺激(transcranial magnetic stimulation,TMS)是基于电磁感应原理的一项非侵入性神经调控技术,具有无创、安全、耐受性好等优点,在精神和神经疾病的临床应用方面取得极大进展。但其刺激靶点如何选择和定位、其对脑网络功能连接会产生什么样的影响以及脑网络状态又如何影响TMS的临床效果尚处于探索之中。血氧水平依赖的功能磁共振成像(functional magnetic resonance imaging,fMRI)能检测到大脑活动,且具有空间分辨率高、非侵入性及无辐射等优势。鉴于fMRI的优势,fMRI和TMS结合(fMRI-TMS)已越来越多地在临床和科研中得到应用。本文就fMRI-TMS在靶点的精确和个性化定位、在脑功能网络方面的研究进行综述,并对fMRI-TMS的局限性及未来发展进行简单阐述。
基金National Key Research and Development Program of China(No. 2017YFA0105503)National Natural Science Foundation of China(No. 81970113)+1 种基金Key Program of National Natural Science Foundation of China(No. 81730004)Beijing Natural Science Foundation(No. H2018206423)。
文摘Immune thrombocytopenia(ITP)is an acquired disease characterized by isolated thrombocytopenia,which is one of the most common causes of thrombocytopenia during pregnancy.Women with ITP who have severe thrombocytopenia are at an increased risk for life-threatening obstetric complications.Therefore,we established this consensus statement on the diagnosis and management of ITP during pregnancy(detailed information is available in the Supplementary File,http://links.lww.com7CM9/A978).