We report a case of hypodense cerebellar tuberculoma in a 26 year old postpartum lady who presented with one episode of generalized tonic-clonic seizures and discuss the histopathology findings where on CT scan the le...We report a case of hypodense cerebellar tuberculoma in a 26 year old postpartum lady who presented with one episode of generalized tonic-clonic seizures and discuss the histopathology findings where on CT scan the lesion was suspected as low grade glioma.She was started on isoniazid,rifampicin,pyrazinamide,ethambutol and pyridoxine.She is asymptomatic and had no neurological deficits at follow up.展开更多
Background Resent advances on functional mapping have enabled us to conduct surgery on gliomas within the eloquent area. The objective of the article is to discuss the feasibility of a planned fractionated strategy of...Background Resent advances on functional mapping have enabled us to conduct surgery on gliomas within the eloquent area. The objective of the article is to discuss the feasibility of a planned fractionated strategy of resection on low-grade gliomas （LGGs） involving Broca＇s area. We report the first surgical series of planned fractionated resections on LGGs within Broca＇s area, focusing on language functional reshaping. Methods Four patients were treated with fractionated operations for LGGs involving Broca＇s area. All cases underwent conventional magnetic resonance （MR） scanning, language functional MR and diffusion tensor imaging （DTI） before operation. The resections were then performed on patients under awake anesthesia using intraoperative electrical stimulation （IES） for functional mapping. Pre- and post-operative neuro-psychological examinations were evaluated.Results Total resections were achieved in all cases as confirmed by the postoperative control MR. After transient language worsening, all patients recovered to normal 3-6 months later. Language functional MR scannings have shown language functional cortical and subcortical pathway reorganization （in the perilesion or contra-lateral hemisphere） after the operation. All patients returned to a normal socioprofessional life. Conclusions By utilizing the dynamic interaction between brain plasticity and fractionated resections, we can totally remove the tumor involving Broca＇s structure without inducing permanent postoperative deficits and even improve the quality of life.展开更多
Knowledge of the plasticity of language pathways neurosurgeons to achieve maximum resection wh n patients with low-grade glioma is important for e preserving neurological function. The current study sought to investig...Knowledge of the plasticity of language pathways neurosurgeons to achieve maximum resection wh n patients with low-grade glioma is important for e preserving neurological function. The current study sought to investigate changes in the ventral language pathways in patients with low-grade glioma located in regions likely to affect the dorsal language pathways. The results revealed no significant difference in fractional anisotropy values in the arcuate fasciculus between groups or between hemispheres. However, fractional anisotropy and lateralization index values in the left inferior longitudinal fasciculus and lateralization index values in the left inferior fronto-occpital fasciculus were higher in patients than in healthy subjects. These results indicate plasticity of language pathways in patients with low-grade glioma. The ventral language pathways may perform more functions in patients than in healthy subjects. As such, it is important to protect the ventral language pathways intraoperatively.展开更多
Because functional magnetic resonance imaging can be used for dynamic observation of functional cortical changes after brain injuries, we followed up functional magnetic resonance imaging manifestations of a language-...Because functional magnetic resonance imaging can be used for dynamic observation of functional cortical changes after brain injuries, we followed up functional magnetic resonance imaging manifestations of a language-related brain network in a low-grade glioma patient. Disease progression and therapy during a 3-year period were followed up at different time points： before and after reoperation, after radiation therapy, and 1 year after irradiation. During the whole 3-year follow-up period, the patient exhibited no neurological deficits while functional magnetic resonance imaging revealed different topologies of the language-related brain network. During disease progression and after irradiation, the language-related brain network was extended or completely transferred to the nondominant （right） hemisphere. In addition, after reoperation and 1 year after irradiation, language areas were primarily found in the language dominant （left） hemisphere. Our results suggest a high level of adaptability of the language-related cortical network of the bilateral hemispheres in this low-grade glioma patient.展开更多
Nonresectable Low-Grade Astrocytomas (LGA) can compromise function and threaten life. For the majority of patients, the most appropriate strategy is initial chemotherapy followed by Radiation Therapy (RT). Since curat...Nonresectable Low-Grade Astrocytomas (LGA) can compromise function and threaten life. For the majority of patients, the most appropriate strategy is initial chemotherapy followed by Radiation Therapy (RT). Since curative treatment is not available for most of these patients, it is reasonable to conduct clinical studies to evaluate new agents. This Phase II study evaluates efficacy and safety of Antineoplastons A10 and AS2-1 (ANP) in LGA. Sixteen children diagnosed with LGA were treated. They included 12 males and 4 females, ages 1.6 - 17.4 years (median 10.6). Efficacy was evaluated in 16 patients. The majority of patients were previously treated, but 1 patient had stereotactic biopsy only. Out of the remaining 15 patients, 6 patients received chemotherapy, and 7 patients had surgery, and 2 patients received RT and chemotherapy after surgery. The patients received treatment with ANP administered daily every 4 hours (median dose of A10 was 7.71 g/kg/d and AS2-1 was 0.26 g/kg/d) until objective response or stable disease was documented and for 8 months thereafter. The duration of ANP IV ranged from 1.4 to 286 weeks with a median of 83 weeks. A complete response was documented in 25.0%, partial response in 12.5%, and stable disease in 37.5%. Overall survival was 67.7% at 5 years, and 54.2% at 10 and 15 years. Progression-free survival was 48.1%, 34.4% and 34.4% at 5, 10, and 15 years respectively. The treatment was associated with grade 3 or grade 4 Adverse Drug Experiences (ADE) in 6 patients. There were two hypernatremias of grade 4 (12%). Grade 3 ADE included urinary frequency (6%), fatigue (6%) and hypernatremia (6%). There were no chronic toxicities, and there was a high quality of survival. ANP shows efficacy with a very good toxicity profile in this cohort of children with low-grade astrocytoma.展开更多
目的:通过监测、流行病学及预后(surveillance,epidemiology,and end result,SEER)数据库开发列线图来分析低级别胶质瘤(low-grade glioma,LGG)患者的预后因素并且预测其生存率。方法:通过SEER数据库收集LGG患者5439例,并统计其人口统...目的:通过监测、流行病学及预后(surveillance,epidemiology,and end result,SEER)数据库开发列线图来分析低级别胶质瘤(low-grade glioma,LGG)患者的预后因素并且预测其生存率。方法:通过SEER数据库收集LGG患者5439例,并统计其人口统计学信息及临床特征。随机抽取其中1001例作为模型的内部验证集,并收集2010-2017年间就诊于山西省人民医院的LGG患者67例作为外部验证集。采用单因素、多因素Cox回归及Lasso回归分析LGG患者的独立危险因素,并考虑其临床效用性。将这些独立预测因素整合在一起,绘制预测LGG患者1年和3年生存率的列线图。通过内部验证集数据及外部验证集数据绘制ROC曲线和校准曲线图来评估列线图的性能。结果:纳入训练集患者4438例,内部验证集患者1001例,外部验证集患者67例。一般情况人群分布无显著统计学差异。通过单因素、多因素Cox回归及Lasso回归分析联合生存分析结果选择独立危险因素,纳入年龄、病理学分型、手术方式、肿瘤大小、婚姻状况、放化疗及发病部位为独立预测因素(P<0.001)。由上述7种因素构建预后预测模型,结果以列线图形式呈现。内部验证集验证列线图的ROC曲线下面积为0.841和0.804;外部验证集验证列线图的ROC曲线下面积为0.703和0.742,表明该模型的区分度与准确度较高。校准曲线显示其具有较好的一致性。结论:本列线图可用于预测LGG患者1年和3年生存率,并且拥有较高的临床价值,可以为LGG的个体化治疗提供参考。展开更多
目的:构建预测弥漫性低级别胶质瘤患者癫痫发作风险的影像组学风险模型,并初步评估患者预后。方法:利用癌症基因组图谱(the cancer genome atlas,TCGA)数据库和癌症影像档案(the cancer imaging archive,TCIA)数据库提供的影像数据集及...目的:构建预测弥漫性低级别胶质瘤患者癫痫发作风险的影像组学风险模型,并初步评估患者预后。方法:利用癌症基因组图谱(the cancer genome atlas,TCGA)数据库和癌症影像档案(the cancer imaging archive,TCIA)数据库提供的影像数据集及临床资料,通过影像组学方法构建癫痫风险评分模型,并结合临床指标建立列线图以预测癫痫发生概率及远期生存概率。用受试者工作特征(receiver operating characteristic,ROC)曲线及决策曲线分析评价模型的预测效能。结果:筛选出10个癫痫相关的影像特征建立风险评分模型,内部及外部验证的ROC曲线下面积分别为0.900和0.636。高风险组和低风险组的癫痫阳性率分别为80.6%和27.3%。高风险组和低风险组患者的5年疾病总生存率存在明显统计学差异(P=0.029),临床决策分析曲线显示“影像⁃临床”癫痫预测模型的净获益率优于临床预测模型。校准曲线显示3年、5年生存列线图有良好的校准和区分能力,列线图中高低危组5年总生存有明显统计学差异(P=0.008)。结论:本研究建立了一个基于术前MRI的影像组学模型,可用于无创预测弥漫性低级别胶质瘤患者癫痫发生风险及预后,为临床采取个体化治疗策略提供参考。展开更多
目的研究术前MRI影像组学对于低级别胶质瘤患者总生存期的预测,基于影像组学标签进行风险分层,指导临床个性化治疗选择。方法选取2011-01-2016-12郑州大学第一附属医院初次诊断为低级别胶质瘤的218例患者为研究对象。按照2∶1的比例将...目的研究术前MRI影像组学对于低级别胶质瘤患者总生存期的预测,基于影像组学标签进行风险分层,指导临床个性化治疗选择。方法选取2011-01-2016-12郑州大学第一附属医院初次诊断为低级别胶质瘤的218例患者为研究对象。按照2∶1的比例将其分为训练数据集(149例)和测试数据集(69例)。通过影像组学特征筛选,选取最优的影像组学特征构建影像组学标签,并对低级别胶质瘤患者进行预后预测。并在测试数据集中评估影像组学标签的预后价值。结果影像组学标签和患者总生存期存在显著相关性(P<0.0001),在测试数据集中进行了验证(P<0.0001)。使用影像组学标签和临床病理因素建立的影像组学-临床诺莫图相较于临床病理诺莫图有着更好的预测准确性(C-index:0.7930 vs C-index:0.7319)。结论影像组学标签可对低级别胶质瘤患者进行无创性风险分层,并可作为一种潜在的影像生物标志物。展开更多
文摘We report a case of hypodense cerebellar tuberculoma in a 26 year old postpartum lady who presented with one episode of generalized tonic-clonic seizures and discuss the histopathology findings where on CT scan the lesion was suspected as low grade glioma.She was started on isoniazid,rifampicin,pyrazinamide,ethambutol and pyridoxine.She is asymptomatic and had no neurological deficits at follow up.
文摘Background Resent advances on functional mapping have enabled us to conduct surgery on gliomas within the eloquent area. The objective of the article is to discuss the feasibility of a planned fractionated strategy of resection on low-grade gliomas （LGGs） involving Broca＇s area. We report the first surgical series of planned fractionated resections on LGGs within Broca＇s area, focusing on language functional reshaping. Methods Four patients were treated with fractionated operations for LGGs involving Broca＇s area. All cases underwent conventional magnetic resonance （MR） scanning, language functional MR and diffusion tensor imaging （DTI） before operation. The resections were then performed on patients under awake anesthesia using intraoperative electrical stimulation （IES） for functional mapping. Pre- and post-operative neuro-psychological examinations were evaluated.Results Total resections were achieved in all cases as confirmed by the postoperative control MR. After transient language worsening, all patients recovered to normal 3-6 months later. Language functional MR scannings have shown language functional cortical and subcortical pathway reorganization （in the perilesion or contra-lateral hemisphere） after the operation. All patients returned to a normal socioprofessional life. Conclusions By utilizing the dynamic interaction between brain plasticity and fractionated resections, we can totally remove the tumor involving Broca＇s structure without inducing permanent postoperative deficits and even improve the quality of life.
基金supported by the National Natural Science Foundation of China, No. 31040039the Natural Science Foundation of Beijing, No. 7102145the Military Clinical High-Tech Foundation, No. 2010gxjso94
文摘Knowledge of the plasticity of language pathways neurosurgeons to achieve maximum resection wh n patients with low-grade glioma is important for e preserving neurological function. The current study sought to investigate changes in the ventral language pathways in patients with low-grade glioma located in regions likely to affect the dorsal language pathways. The results revealed no significant difference in fractional anisotropy values in the arcuate fasciculus between groups or between hemispheres. However, fractional anisotropy and lateralization index values in the left inferior longitudinal fasciculus and lateralization index values in the left inferior fronto-occpital fasciculus were higher in patients than in healthy subjects. These results indicate plasticity of language pathways in patients with low-grade glioma. The ventral language pathways may perform more functions in patients than in healthy subjects. As such, it is important to protect the ventral language pathways intraoperatively.
文摘Because functional magnetic resonance imaging can be used for dynamic observation of functional cortical changes after brain injuries, we followed up functional magnetic resonance imaging manifestations of a language-related brain network in a low-grade glioma patient. Disease progression and therapy during a 3-year period were followed up at different time points： before and after reoperation, after radiation therapy, and 1 year after irradiation. During the whole 3-year follow-up period, the patient exhibited no neurological deficits while functional magnetic resonance imaging revealed different topologies of the language-related brain network. During disease progression and after irradiation, the language-related brain network was extended or completely transferred to the nondominant （right） hemisphere. In addition, after reoperation and 1 year after irradiation, language areas were primarily found in the language dominant （left） hemisphere. Our results suggest a high level of adaptability of the language-related cortical network of the bilateral hemispheres in this low-grade glioma patient.
文摘Nonresectable Low-Grade Astrocytomas (LGA) can compromise function and threaten life. For the majority of patients, the most appropriate strategy is initial chemotherapy followed by Radiation Therapy (RT). Since curative treatment is not available for most of these patients, it is reasonable to conduct clinical studies to evaluate new agents. This Phase II study evaluates efficacy and safety of Antineoplastons A10 and AS2-1 (ANP) in LGA. Sixteen children diagnosed with LGA were treated. They included 12 males and 4 females, ages 1.6 - 17.4 years (median 10.6). Efficacy was evaluated in 16 patients. The majority of patients were previously treated, but 1 patient had stereotactic biopsy only. Out of the remaining 15 patients, 6 patients received chemotherapy, and 7 patients had surgery, and 2 patients received RT and chemotherapy after surgery. The patients received treatment with ANP administered daily every 4 hours (median dose of A10 was 7.71 g/kg/d and AS2-1 was 0.26 g/kg/d) until objective response or stable disease was documented and for 8 months thereafter. The duration of ANP IV ranged from 1.4 to 286 weeks with a median of 83 weeks. A complete response was documented in 25.0%, partial response in 12.5%, and stable disease in 37.5%. Overall survival was 67.7% at 5 years, and 54.2% at 10 and 15 years. Progression-free survival was 48.1%, 34.4% and 34.4% at 5, 10, and 15 years respectively. The treatment was associated with grade 3 or grade 4 Adverse Drug Experiences (ADE) in 6 patients. There were two hypernatremias of grade 4 (12%). Grade 3 ADE included urinary frequency (6%), fatigue (6%) and hypernatremia (6%). There were no chronic toxicities, and there was a high quality of survival. ANP shows efficacy with a very good toxicity profile in this cohort of children with low-grade astrocytoma.
文摘目的:通过监测、流行病学及预后(surveillance,epidemiology,and end result,SEER)数据库开发列线图来分析低级别胶质瘤(low-grade glioma,LGG)患者的预后因素并且预测其生存率。方法:通过SEER数据库收集LGG患者5439例,并统计其人口统计学信息及临床特征。随机抽取其中1001例作为模型的内部验证集,并收集2010-2017年间就诊于山西省人民医院的LGG患者67例作为外部验证集。采用单因素、多因素Cox回归及Lasso回归分析LGG患者的独立危险因素,并考虑其临床效用性。将这些独立预测因素整合在一起,绘制预测LGG患者1年和3年生存率的列线图。通过内部验证集数据及外部验证集数据绘制ROC曲线和校准曲线图来评估列线图的性能。结果:纳入训练集患者4438例,内部验证集患者1001例,外部验证集患者67例。一般情况人群分布无显著统计学差异。通过单因素、多因素Cox回归及Lasso回归分析联合生存分析结果选择独立危险因素,纳入年龄、病理学分型、手术方式、肿瘤大小、婚姻状况、放化疗及发病部位为独立预测因素(P<0.001)。由上述7种因素构建预后预测模型,结果以列线图形式呈现。内部验证集验证列线图的ROC曲线下面积为0.841和0.804;外部验证集验证列线图的ROC曲线下面积为0.703和0.742,表明该模型的区分度与准确度较高。校准曲线显示其具有较好的一致性。结论:本列线图可用于预测LGG患者1年和3年生存率,并且拥有较高的临床价值,可以为LGG的个体化治疗提供参考。
文摘目的:构建预测弥漫性低级别胶质瘤患者癫痫发作风险的影像组学风险模型,并初步评估患者预后。方法:利用癌症基因组图谱(the cancer genome atlas,TCGA)数据库和癌症影像档案(the cancer imaging archive,TCIA)数据库提供的影像数据集及临床资料,通过影像组学方法构建癫痫风险评分模型,并结合临床指标建立列线图以预测癫痫发生概率及远期生存概率。用受试者工作特征(receiver operating characteristic,ROC)曲线及决策曲线分析评价模型的预测效能。结果:筛选出10个癫痫相关的影像特征建立风险评分模型,内部及外部验证的ROC曲线下面积分别为0.900和0.636。高风险组和低风险组的癫痫阳性率分别为80.6%和27.3%。高风险组和低风险组患者的5年疾病总生存率存在明显统计学差异(P=0.029),临床决策分析曲线显示“影像⁃临床”癫痫预测模型的净获益率优于临床预测模型。校准曲线显示3年、5年生存列线图有良好的校准和区分能力,列线图中高低危组5年总生存有明显统计学差异(P=0.008)。结论:本研究建立了一个基于术前MRI的影像组学模型,可用于无创预测弥漫性低级别胶质瘤患者癫痫发生风险及预后,为临床采取个体化治疗策略提供参考。
文摘目的研究术前MRI影像组学对于低级别胶质瘤患者总生存期的预测,基于影像组学标签进行风险分层,指导临床个性化治疗选择。方法选取2011-01-2016-12郑州大学第一附属医院初次诊断为低级别胶质瘤的218例患者为研究对象。按照2∶1的比例将其分为训练数据集(149例)和测试数据集(69例)。通过影像组学特征筛选,选取最优的影像组学特征构建影像组学标签,并对低级别胶质瘤患者进行预后预测。并在测试数据集中评估影像组学标签的预后价值。结果影像组学标签和患者总生存期存在显著相关性(P<0.0001),在测试数据集中进行了验证(P<0.0001)。使用影像组学标签和临床病理因素建立的影像组学-临床诺莫图相较于临床病理诺莫图有着更好的预测准确性(C-index:0.7930 vs C-index:0.7319)。结论影像组学标签可对低级别胶质瘤患者进行无创性风险分层,并可作为一种潜在的影像生物标志物。
