检索结果-南通市图书馆

Metastasis to the thyroid gland from primary breast cancer presenting as diffuse goiter:A case report and review of literature

引用

World Journal of Clinical Cases 2022年第3期10卷 1106-1115页

作者： Wen Wen Heng Jiang Hsin-yu Wen yu-lan peng Department of Ultrasound West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina College of Medicine University of Nebraska Medical CenterOmahaNE 68133United States Department of Pathology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Metastasis to the thyroid gland(TM)from primary breast cancer is uncommon and usually presents as thyroid nodules;however,diffuse goiter without thyroid nodules is the first sign of TM in rare *** metastases(SMs)to the lymph nodes in breast cancer,defined as discontiguous higher-level metastases in the absence of lower levels of contiguous metastases,have been reported in the contralateral cervical area of the primary tumor site in rare *** SUMMARY A 49-year-old previously healthy Chinese woman was diagnosed with right lateral invasive ductal carcinoma and underwent neoadjuvant chemotherapy treatment and bilateral mastectomy with axillary lymph node *** malignancy of the left breast or axillary or distant metastases were identified ***,enlarged left cervical lymph nodes were detected 36 mo after surgery,and rapidly enlarging thyroid glands without nodules were detected 42 mo after ***-needle aspiration cytology was performed on the left cervical lymph nodes and left lobe of the thyroid,which were both revealed to contain metastases from the primary breast ***,the immunostaining profiles changed in the process of *** patient was discharged with the NP(vinorelbine and cisplatin)regimen for subsequent treatment,and stable disease was determined when the curative effect was *** Diffuse goiter may be the first sign of TM,and enlarged lymph nodes in the contralateral cervical area may be SMs of primary breast cancer.

关键词： Metastases to the thyroid gland Diffuse goiter Cervical lymph node recurrence Breast cancer Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multi-parameter ultrasound based on the logistic regression model in the differential diagnosis of hepatocellular adenoma and focal nodular hyperplasia

引用

World Journal of Gastrointestinal Oncology 2019年第12期11卷 1193-1205页

作者： Meng Wu Ru-Hai Zhou Feng Xu Xian-peng Li Ping Zhao Rui yuan yu-peng lan Wei-Xia Zhou Department of Ultrasound Yinzhou Hospital Affiliated to Ningbo University School of MedicineNingbo 315000Zhejiang ProvinceChina Department of Gastroenterology Yinzhou Hospital Affiliated to Ningbo University School of MedicineNingbo 315000Zhejiang ProvinceChina

BACKGROUND Focal nodular hyperplasia(FNH)has very low potential risk,and a tendency to spontaneously *** adenoma(HCA)has a certain malignant tendency,and its prognosis is significantly different from *** identification of HCA and FNH is critical for clinical *** To analyze the value of multi-parameter ultrasound index based on logistic regression for the differential diagnosis of HCA and *** Thirty-one patients with HCA were included in the HCA *** patients with FNH were included in the FNH *** clinical data were collected and recorded in the two *** ultrasound,shear wave elastography,and contrast-enhanced ultrasound were performed,and the lesion location,lesion echo,Young’s modulus(YM)value,YM ratio,and changes of time intense curve(TIC)were *** logistic regression analysis was used to screen the indicators that can be used for the differential diagnosis of HCA and FNH.A ROC curve was established for the potential indicators to analyze the accuracy of the differential diagnosis of HCA and *** value of the combined indicators for distinguishing HCA and FNH were *** Multivariate logistic regression analysis showed that lesion echo(P=0.000),YM value(P=0.000)and TIC decreasing slope(P=0.000)were the potential indicators identifying HCA and *** the ROC curve analysis,the accuracy of the YM value distinguishing HCA and FNH was the highest(AUC=0.891),which was significantly higher than the AUC of the lesion echo and the TIC decreasing slope(P<0.05).The accuracy of the combined diagnosis was the highest(AUC=0.938),which was significantly higher than the AUC of the indicators diagnosing HCA individually(P<0.05).This sensitivity was 91.23%,and the specificity was 83.33%.CONCLUSION The combination of lesion echo,YM value and TIC decreasing slope can accurately differentiate between HCA and FNH.

关键词： Hepatocellular adenoma Focal nodular hyperplasia Ultrasound Logistic regression

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of vibration therapy on bone mineral density in postmenopausal women with osteoporosis

引用

Chinese Medical Journal 2008年第13期121卷 1155-1158页

作者： RUAN Xiang-yan JIN Feng-yu LIU yu-lan peng Zhou-li SUN yun-gao Beijing Obstetrics and Gynecology Hospital Capital Medical University Beijing 100026 China

Background Jaw osteonecrosis possibly associated with the administration of bisphosphonates is expected to be treated with a non-pharmacologic approach. This study aimed to determine whether noninvasive, mechanically mediated vibration would inhibit the decline in bone mineral density （BMD） that follows menopause, enhance the BMD of the lumbar and femoral neck, and reduce chronic back pain in postmenopausal women with osteoporosis. Methods A total of 116 postmenopausal women with osteoporosis participated in this study, and they were divided into groups A （66 patients） and B （50）. Group A received vibration treatment （Subjects vertically stand on the vibration platform, with a vibration frequency of 30 Hz, amplitude of 5 mm; they received the treatment five times per week, ten minutes each time and totally for six months）, whereas women of group B served as controls without any treatment. L2-4 BMD, bilateral femoral neck BMD, and body mass index （BMI） were recorded before the treatment or at the third and sixth months of the treatment respectively. After the ending of the treatment, the change of BMD in each group was compared and analyzed. Chronic back pain was evaluated by visual analogue scale （VAS） at baseline and the third and sixth months of the treatment. Results Of the 116 women, 94 including 51 women from group A （（61.23±8.20） years） and 43 women from group B （（63.73±5.45） years）, completed the study. There were no significant differences in baseline characteristics including age, BMI, menopausal years, lumbar BMD, femoral neck BMD, and VAS between the two groups. The lumbar BMD of the 51 women in group A increased by 1.3% （P=0.034） after vibration treatment for 3 months and by 4.3% at the sixth month （P=0.000）. The lumbar BMD in group B was decreased at the third month, but there was not statistical significance （P〉0.05） At the sixth month, it was decreased by 1.9% （P 〈0.05）. The femoral neck BMD of the 51 women in group A was slightly increased after

关键词： postmenopausal women vibration treatment osteoporosis bone mineral density

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng Gao yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Postoperative complications in patients with portal vein thrombosis after liver transplantation:Evaluation with Doppler ultrasonography

引用

World Journal of Gastroenterology 2007年第34期13卷 4636-4640页

作者： Yi-Ping Jia Qiang Lu Shu Gong Bu-yun Ma Xiao-Rong Wen yu-lan peng Ling Lin Hong-Yan Chen Li Qiu Yan Luo Department of Ultrasound West China Hospital Sichuan University Chengdu610041 Sichuan Province China Department of General Surgery West China HospitalSichuan University Chengdu 610041 Sichuan Province China

AIM： To study the postoperative complications in patients with preoperative portal vein thrombosis （PVT） undergoing liver transplantation （LT） and to evaluate the complications with Doppler ultrasonography.METHODS： Retrospective studies were performed on 284 patients undergoing LT （286 LT） with respect to pre- and postoperative clinical data and Doppler ultrasonography. According to the presence and grade of preoperative PVT, 286 LTs were divided into three groups： complete PVT （c-PVT）, partial PVT （p-PVT） and non-PVT, with 22, 30 and 234 LTs, respectively. Analyses were carried out to compare the incidence of early postoperative complications.RESULTS： PVT, inferior vena cava （IVC） thrombosis, hepatic artery thrombosis （HAT） and biliary complications were found postoperatively. All complications were detected by routine Doppler ultrasonography and diagnoses made by ultrasound were confirmed by clinical data or/and other imaging studies. Nine out of 286 LTs had postoperative PVT. The incidence of the c-Pv-r group was 22.7%, which was higher than that of the p-Pv-r group （3.3%, P 〈 0.05） and non- PVT group （1.3%, P 〈 0.005）. No difference was found between the p-PVT and non-PVT groups （P 〉 0.25）. Of the 9 cases with postoperative PVT, recanalizations were achieved in 7 cases after anticoagulation under the guidance of ultrasound, 1 case received portal vein thrombectomy and 1 case died of acute injection. Ten LTs had postoperative 1VC thrombosis. The c-PVT group had a higher incidence of IVC thrombosis than the non- PVT group （9.1% vs 2.6%, P 〈 0.05）; no significant difference was found between either the c-PV-T and p-PVT groups （9.1% vs 6.7%, P 〉 0.5） or between the p-PVT and non-PVT groups （P 〉 0.25）. Nine cases with IVC thrombosis were cured by anticoagulation under the guidance of ultrasound, and 1 case gained natural cure without any medical treatment after 2 mo. HAT was found in 2 non-PVT cases, giving a rate of 0.7% among 286 LTs. Biliary complications wer

关键词： Portal vein thrombosis Liver transplantation Postoperative complications Doppler ultrasonography

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Boosting bidirectional sulfur conversion enabled by introducing boron-doped atoms and phosphorus vacancies in Ni2P for lithium-sulfur batteries

引用

Journal of Energy Chemistry 2025年第1期100卷 760-769页

作者： Lin peng yu Bai Hang Li Meixiu Qu Zhenhua Wang Kening Sun Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing Key Laboratory of Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology

Lithium-sulfur （Li-S） batteries have gained great attention due to the high theoretical energy density and low cost,yet their further commercialization has been obstructed by the notorious shuttle effect and sluggish redox ***,we supply a strategy to optimize the electron structure of Ni2P by concurrently introducing B-doped atoms and P vacancies in Ni2P （Vp-B-Ni2P）,thereby enhancing the bidirectional sulfur *** study indicates that the simultaneous introduction of B-doped atoms and P vacancies in Ni2P causes the redistribution of electron around Ni atoms,bringing about the upward shift of d-band center of Ni atoms and effective d-p orbital hybridization between Ni atoms and sulfur species,thus strengthening the chemical anchoring for lithium polysulfides （LiPSs） as well as expediting the bidirectional conversion kinetics of sulfur ***,theoretical calculations reveal that the incorporation of B-doped atoms and P vacancies in Ni2P selectively promotes Li2S dissolution and nucleation ***,the Li-S batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 C and high areal capacity of 8.03 mA h cm-2under E/S of 5μL mg-1and sulfur loading of 7.20 mg *** work elucidates that introducing heteroatom and vacancy in metal phosphide collaboratively regulates the electron structure to accelerate bidirectional sulfur conversion.

关键词： Lithium sulfur batteries

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

High-temperature-tolerant flexible supercapacitors: Gel polymer electrolytes and electrode materials

引用

Journal of Energy Chemistry 2025年第1期100卷 426-457页

作者： Chong peng Xinyi Huang Mingwei Zhao Shuling Liao Quanhong Yang Nianjun Yang Siyu yu School of Chemistry & Chemical Engineering Southwest University Nanoyang Group Tianjin Key Laboratory of Advanced Carbon and Electrochemical Energy Storage School of Chemical Engineering and Technology and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin University Department of Chemistry & IMO-IMOMEC Hasselt University

The development of flexible supercapacitors(FSCs) capable of operating at high temperatures is crucial for expanding the application areas and operating conditions of supercapacitors. Gel polymer electrolytes and electrode materials stand as two key components that significantly impact the efficacy of hightemperature-tolerant FSCs(HT-FSCs). They should not only exhibit high electrochemical performance and excellent flexibility, but also withstand intense thermal stress. Considerable efforts have been devoted to enhancing their thermal stability while maintaining high electrochemical and mechanical performance. In this review, the fundamentals of HT-FSCs are outlined. A comprehensive overview of state-of-the-art progress and achievements in HT-FSCs, with a focus on thermally stable gel polymer electrolytes and electrode materials is provided. Finally, challenges and future perspectives regarding HT-FSCs are discussed, alongside strategies for elevating operational temperatures and *** review offers both theoretical foundations and practical guidelines for designing and manufacturing HT-FSCs, further promoting their widespread adoption across diverse fields.

关键词： Flexible supercapacitors High-temperature tolerance Gel polymer electrolytes Electrode materials

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

超声造影联合超声实时组织弹性成像在甲状腺良恶性结节诊断中的应用价值

引用

新医学 2014年第3期45卷 173-177页

作者：兰宇鹏宁波市鄞州人民医院超声科鄞州315100

目的评价超声造影联合超声实时组织弹性成像(RTE)在甲状腺良恶性结节诊断中的应用价值。方法分析85例甲状腺结节患者的超声造影和RTE的图像信息并与病理活组织检查(活检)相对比,评估单用两种方法及联合使用两种方法诊断的灵敏度、特异... 详细信息

目的评价超声造影联合超声实时组织弹性成像(RTE)在甲状腺良恶性结节诊断中的应用价值。方法分析85例甲状腺结节患者的超声造影和RTE的图像信息并与病理活组织检查(活检)相对比,评估单用两种方法及联合使用两种方法诊断的灵敏度、特异度、阳性预测值、阴性预测值及诊断符合率。结果 85个甲状腺结节中,病理活检证实恶性病灶48个,良性病灶37个。恶性结节在注射造影剂后以不均匀低增强为主,早于周边甲状腺组织消退。良性结节则以弥散性等增强或高增强为主,晚于周围腺体廓清。超声造影的灵敏度、特异度、阳性预测值、阴性预测值及诊断符合率分别为91.67%、81.08%、91.67%、81.08%、87.06%;RTE则分别为87.50%、83.78%、87.50%、83.78%、85.89%;两者联合诊断的灵敏度、特异度、阳性预测值、阴性预测值及诊断符合率分别为97.92%、86.49%、90.38%、96.97%、92.94%。超声造影联合RTE灵敏度、特异度、阴性预测值及诊断符合率比单用超声造影或RTE高(均P<0.05)。结论超声造影联合RTE可提高甲状腺良恶性结节诊断的准确性。

关键词：超声造影弹性成像甲状腺结节

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

引用

Journal of Energy Chemistry 2025年第1期100卷 458-468页

作者： peng Zhu Cun Liu Yiren yu Guoshu Gao yumeng Zhao Xiongfu Zhang Guodong Liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

引用

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： peng Li Meifeng Cai Shengjun Miao yuan Li yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：