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Cost Management Research Based on E-commerce Logistics Mode
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作者 Zhi Wang 《International Journal of Technology Management》 2014年第12期129-130,共2页
This paper describes the real-time and the importance of the study about e-commerce logistics cost management ,analyzes the development status of today' s e-commerce logistics and compares it with the traditional log... This paper describes the real-time and the importance of the study about e-commerce logistics cost management ,analyzes the development status of today' s e-commerce logistics and compares it with the traditional logistics, defines the e-commerce logistics cost management .Based on this, it summarizes the cost structure of e-commerce logistics, proposes factors affecting the cost of logistics, builds the basic ideas of logistics cost management, and thus introducts the accounting methods about logistics cost .Finally, puts forward to the content and methods of logistics costs budget, controling the cost effectively. 展开更多
关键词 e-commerce logistics model logistics costs Cost Management CONTROL
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A Study on Establishing a Cross-border E-commerce Logistics System for Agricultural Products in Sichuan Province in the Context of the Belt and Road Initiative
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作者 You Jing Chen Haonan 《Contemporary Social Sciences》 2021年第5期13-28,共16页
The rapid development of cross-border e-commerce,especially since Chengdu was listed as an Integrated Pilot Zone for Cross-Border E-Commerce in 2016,has led to a rising trade value of agricultural products in the metr... The rapid development of cross-border e-commerce,especially since Chengdu was listed as an Integrated Pilot Zone for Cross-Border E-Commerce in 2016,has led to a rising trade value of agricultural products in the metropolis.This upward trend is also attributed to the China-Europe Railway Express and the Chengdu International Aviation Hub Integrated Functional Area,two infrastructure systems that have opened more international logistics channels for agricultural products in Sichuan province.However,the development of cross-border logistics has failed to respond to the rapid growth of cross-border e-commerce for agricultural products.This problem has given rise to longer delivery cycles,higher costs,and reduced product quality,hindering the development of cross-border e-commerce for agricultural products.Currently,most research efforts are focused on selecting a logistics mode which has created an urgency is to establish a logistics system.To that end,we must utilize the opportunities and preferential policies brought about by the Belt and Road Initiative to advance the establishment of a cross-border logistics system for agricultural products,which will create more channels for selling Sichuan’s agricultural products overseas.This article analyzes the current situation of the cross-border logistics system for agricultural products produced by the province and studies the potential relationships between a logistics system and cross-border trade of agricultural products.It seeks to build a logistics system that meets the demands of cross-border transactions using economic theories focused on cross-border e-commerce and logistics.Such a logistic system will help shorten long delivery cycles,cut delivery costs,and guarantee the quality of agricultural products.Also,it can contribute to the rapid development of cross-border e-commerce of agricultural products and solve problems in developing the agricultural products logistics system of Sichuan province. 展开更多
关键词 the Belt and Road Initiative agricultural products cross-border e-commerce logistics system
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Optimization of E-commerce Logistics Network in African Countries
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作者 Noubaradjim Banyanan 《Proceedings of Business and Economic Studies》 2021年第3期92-99,共8页
The purpose of this research is to assist the Central African's logistics network authorities in making,evaluating,and realizing their decisions in regard to the development and management of e-commerce logistics ... The purpose of this research is to assist the Central African's logistics network authorities in making,evaluating,and realizing their decisions in regard to the development and management of e-commerce logistics network of companies・This article evaluated and used mathematical models which provided a descriptive analysis on the current situation of its'logistics network while applying the e-commerce logistics network optimization method in dealing with common issues of the logistics network in Central Africa,especially Chad.The suggested network in this study would promote the^from plant-to-from DC"ratio of 83%to 17%which conforms to the companies*objective in progressing towards direct plant shipments.In regard to that,it was proved that direct plant shipments could reduce the distribution costs from 12%to 3%of the net sales(approximately$135,000 in monthly savings). 展开更多
关键词 Central Africa logistic network OPTIMIZATION e-commerce
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Research of Order Allocation of E-commerce Logistics Service Supply Chain Considering Customer Evaluation
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作者 HU Yanyong 《International Journal of Plant Engineering and Management》 2020年第1期1-13,共13页
Based on the importance of customer evaluation for developing e-commerce enterprises,this paper analyzes the customer evaluation as a fuzzy variable and establishes a multi-objective mixed integer order allocation pla... Based on the importance of customer evaluation for developing e-commerce enterprises,this paper analyzes the customer evaluation as a fuzzy variable and establishes a multi-objective mixed integer order allocation planning model by considering customer satisfaction,which maximizes customer praise and minimizes procurement cost.As the optimization goal,transaction cost is optimized for the order allocation of the secondary e-commerce logistics service supply chain.In order to defuzzify the customer evaluation,a fuzzy evaluation method is designed to transform the customer evaluation from fuzzy language evaluation to numerical measurement.Finally,the feasibility and effectiveness of the model are verified by using a specific example,and the order is made for the e-commerce enterprise.The allocation provides a theoretical reference. 展开更多
关键词 customer reviews e-commerce logistics service supply chain order allocation
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Domestic E-commerce Logistics Sees Rapid Growth
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作者 Richard Zhu 《China's Foreign Trade》 2014年第5期42-42,共1页
Due to strong consumer de-mand,favorable policies,and large-scale capital in-flow,domestic e-commerce logistics is seeing rapid growth,accord-ing to a recent report by Roland Berger Strategy Consultants.
关键词 COMMERCE favorable logistics Berger SEEING OPERA c
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影响HR-HPV感染患者转阴的 logistics回归分析
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作者 郑燕苹周小琴 《医学检验与临床》 2026年第2期29-33,共5页
目的:分析影响高危型人乳头瘤病毒(HR-HPV)感染患者转阴的独立影响因素。方法:选取2023年7月1日-2024年1月20日期间250例HR-HPV感染患者为研究对象,根据随访1年期间患者的转归情况分为转阴组、未转阴组。比较两组临床资料,采用Logistic... 目的:分析影响高危型人乳头瘤病毒(HR-HPV)感染患者转阴的独立影响因素。方法:选取2023年7月1日-2024年1月20日期间250例HR-HPV感染患者为研究对象,根据随访1年期间患者的转归情况分为转阴组、未转阴组。比较两组临床资料,采用Logistics回归分析HR-HPV转阴的独立影响因素。结果:250例HR-HPV感染患者中,228例完成随访,失访22例,失访率为8.80%。228例患者中,单一感染156例,多重感染72例。随访期间,150例患者由阳性转阴,自然清除率为65.79%,78例持续感染,持续感染率为34.21%;转阴组与未转阴组年龄、受教育水平、首次性行为年龄、性伴侣数量、多重感染情况及洗阴频率差异均有统计学意义(P<0.05);Logistics多因素回归分析显示,年龄、首次性行为年龄<20岁、性伴侣数量≥2、多重感染及洗阴频率<3次/周均为HR-HPV转阴的独立影响因素(P<0.05)。结论:年龄、首次性行为年龄低于20岁、性伴侣数量≥2、多重感染及洗阴频率低于3次/周是HR-HPV感染转阴的独立危险因素,应针对这些高风险因素采取相应的管理和干预措施。 展开更多
关键词 高危型人乳头瘤病毒 logistics回归分析
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Layered Feature Engineering for E-Commerce Purchase Prediction:A Hierarchical Evaluation on Taobao User Behavior Datasets
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作者 Liqiu Suo Lin Xia +1 位作者 Yoona Chung Eunchan Kim 《Computers, Materials & Continua》 2026年第4期1865-1889,共25页
Accurate purchase prediction in e-commerce critically depends on the quality of behavioral features.This paper proposes a layered and interpretable feature engineering framework that organizes user signals into three ... Accurate purchase prediction in e-commerce critically depends on the quality of behavioral features.This paper proposes a layered and interpretable feature engineering framework that organizes user signals into three layers:Basic,Conversion&Stability(efficiency and volatility across actions),and Advanced Interactions&Activity(crossbehavior synergies and intensity).Using real Taobao(Alibaba’s primary e-commerce platform)logs(57,976 records for 10,203 users;25 November–03 December 2017),we conducted a hierarchical,layer-wise evaluation that holds data splits and hyperparameters fixed while varying only the feature set to quantify each layer’s marginal contribution.Across logistic regression(LR),decision tree,random forest,XGBoost,and CatBoost models with stratified 5-fold cross-validation,the performance improvedmonotonically fromBasic to Conversion&Stability to Advanced features.With LR,F1 increased from 0.613(Basic)to 0.962(Advanced);boosted models achieved high discrimination(0.995 AUC Score)and an F1 score up to 0.983.Calibration and precision–recall analyses indicated strong ranking quality and acknowledged potential dataset and period biases given the short(9-day)window.By making feature contributions measurable and reproducible,the framework complements model-centric advances and offers a transparent blueprint for production-grade behavioralmodeling.The code and processed artifacts are publicly available,and future work will extend the validation to longer,seasonal datasets and hybrid approaches that combine automated feature learning with domain-driven design. 展开更多
关键词 Hierarchical feature engineering purchase prediction user behavior dataset feature importance e-commerce platform TAOBAO
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Spatial Structure of China's E-commerce Express Logistics Network Based on Space of Flows 被引量:4
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作者 LI Yuanjun WU Qitao +2 位作者 ZHANG Yuling HUANG Guangqing ZHANG Hongou 《Chinese Geographical Science》 SCIE CSCD 2023年第1期36-50,共15页
The intermediate link compression characteristics of e-commerce express logistics ne tworks influence the tradition al mode of circulation of goods and economic organization,and alter the city spatial pattern.Based on... The intermediate link compression characteristics of e-commerce express logistics ne tworks influence the tradition al mode of circulation of goods and economic organization,and alter the city spatial pattern.Based on the theory of space of flows,this study adopts China Smart Logistics Network relational data to build China's e-commerce express logistics network and explore its spatial structure characteristics through social network analysis(SNA),the PageRank technique,and geospatial methods.The results are as follows:the network density is 0.9270,which is close to 1;hence,indicating that e-commerce express logistics lines between Chinese cities are nearly complete and they form a typical network structure,thereby eliminating fragmented spaces.Moreover,the average minimum number of edges is 1.1375,which indicates that the network has a small world effect and thus has a high flow efficiency of logistics elements.A significant hierarchical diffusion effect was observed in dominant flows with the highest edge weights.A diamond-structured network was formed with Shanghai,Guangzhou,Chongqing,and Beijing as the four core nodes.Other node cities with a large logistics scale and importance in the network are mainly located in the 19 city agglomerations of China,revealing the fact that the development of city agglomerations is essential for promoting the separation of experience space and changing the urban spatial pattern.This study enriches the theory of urban networks,reveals the flow laws of modern logistics elements,and encourages coordinated development of urban logistics. 展开更多
关键词 space of flows e-commerce express logistics urban logistics network logistics big data
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Integrating wind field analysis in UAV path planning:Enhancing safety and energy efficiency for urban logistics
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作者 Ruijia GU Yifei ZHAO Xinhui REN 《Chinese Journal of Aeronautics》 2026年第1期508-533,共26页
Shenzhen,a major city in southern China,has experienced rapid advancements in Unmanned Aerial Vehicle(UAV)technology,resulting in extensive logistics networks with thousands of daily flights.However,frequent disruptio... Shenzhen,a major city in southern China,has experienced rapid advancements in Unmanned Aerial Vehicle(UAV)technology,resulting in extensive logistics networks with thousands of daily flights.However,frequent disruptions due to its subtropical monsoon climate,including typhoons and gusty winds,present ongoing challenges.Despite the growing focus on operational costs and third-party risks,research on low-altitude urban wind fields remains scarce.This study addresses this gap by integrating wind field analysis into UAV path planning,introducing key innovations to the classical model.First,UAV wind resistance and turbulence constraints are analyzed,mapping high-wind-speed and turbulence-prone zones in the airspace.Second,wind dynamics are incorporated into path planning by considering airspeed and groundspeed variation,optimizing waypoint selection and flight speed adjustments to improve overall energy efficiency.Additionally,a wind-aware Theta*algorithm is proposed,leveraging wind vectors to expedite search process,while Computational Fluid Dynamics(CFD)techniques are employed to calculate wind fields.A case study of Shenzhen,examining wind patterns over the past decade,demonstrates a 6.23%improvement in groundspeed and a 7.69%reduction in energy consumption compared to wind-agnostic models.This framework advances UAV logistics by enhancing route safety and energy efficiency,contributing to more cost-effective operations. 展开更多
关键词 Drone logistics Energy consumption Hazardous field region Path planning Unmanned aerial vehicle(UAV) Urban wind fields
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Logistics Demand Forecast of Fresh Food E-Commerce Based on Bi-LSTM Model 被引量:1
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作者 Shifeng Ni Yan Peng Zijian Liu 《Journal of Computer and Communications》 2022年第9期51-65,共15页
Fresh products have the characteristics of perishable, small batch and high frequency. Therefore, for fresh food e-commerce enterprises, market demand forecasting is particularly important. This paper takes the sales ... Fresh products have the characteristics of perishable, small batch and high frequency. Therefore, for fresh food e-commerce enterprises, market demand forecasting is particularly important. This paper takes the sales data of a fresh food e-commerce enterprise as the logistics demand, analyzes the influence of time and meteorological factors on the demand, extracts the characteristic factors with greater influence, and proposes a logistics demand forecast scheme of fresh food e-commerce based on the Bi-LSTM model. The scheme is compared with other schemes based on the BP neural network and LSTM neural network models. The experimental results show that the Bi-LSTM model has good prediction performance on the problem of logistics demand prediction. This facilitates further research on some supply chain issues, such as business decision-making, inventory control, and logistics capacity planning. 展开更多
关键词 Data Analysis Bi-LSTM Fresh Food e-commerce logistics Demand Forecast
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Empirical study on evaluation of regional agri-food logistics capability in e-commerce environment based on factor analysis A case study of Hebei province
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作者 YANG Lei ZHANG Yi-zhen 《Chinese Business Review》 2010年第12期38-43,共6页
With SPSS16.0 software, this paper chooses the statistical data of 11 cities in Hebei province to empirically study the agri-food logistics capability based on the method of factor analysis, and finally obtains the ra... With SPSS16.0 software, this paper chooses the statistical data of 11 cities in Hebei province to empirically study the agri-food logistics capability based on the method of factor analysis, and finally obtains the ranking of the 11 cities. It shows that, factor-cluster analysis is an effective method to analyze the logistics capability of agri-food. It can simplify the original complicated problem and lead to an objective, reliable and convincing conclusion. 展开更多
关键词 factor analysis e-commerce agri-food logistics regional logistics capability
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Application of Fuzzy-AHP method in the evaluation of logistics capability in e-commerce environment
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作者 YANG Lei ZHANG Yi-zhen 《Chinese Business Review》 2010年第10期51-56,共6页
In order to solve the complex problem of evaluation of logistics capability in e-commerce environment, an index system model of logistics capability is established based on the method of Fuzzy-AHP in this paper. The r... In order to solve the complex problem of evaluation of logistics capability in e-commerce environment, an index system model of logistics capability is established based on the method of Fuzzy-AHP in this paper. The results show that the method of Fuzzy-AHP is a powerful and flexible multi-criteria decision-making tool for dealing with complex problems where both qualitative and quantitative aspects need to be considered, and the human preference model is uncertain and decision-makers are reluctant or unable to assign exact numerical values to the comparison judgments. The evaluation model of logistics capability based on method of Fuzzy-AHP can help to make an effective decision in the evaluation of logistics capability. By this way we can effectively deal with the uncertainty and vagueness in the evaluation process of logistics capability. Logistics companies can diagnose their own weaknesses in the area of logistics and enhance their competitiveness. 展开更多
关键词 FUZZY-AHP e-commerce logistics capability
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Analyzing Collaborative Development of E-Commerce and Logistics Based on DEA
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作者 Lianhua Wang Wei Qi Shi Hui 《Open Journal of Modelling and Simulation》 2017年第2期158-167,共10页
In order to know the current collaborative development situation and relationship of E-commerce and logistics, the paper evaluates the whole collaborative development level of Chinese E-commerce and logistics from 200... In order to know the current collaborative development situation and relationship of E-commerce and logistics, the paper evaluates the whole collaborative development level of Chinese E-commerce and logistics from 2008 to 2014 using the DEA model. Fund, infrastructure, labor and collaborative development are evaluated and analyzed in this model. The research indicates that E-commerce facilitates the logistics development but logistics can’t support E-commerce development well due to the lag effect which leads to lower collaborative development level. So optimizing the ratio of logistics investment and output, promoting logistics service quality and accelerating logistics development have been the key factors for promoting the collaborative development of E-commerce and logistics. 展开更多
关键词 e-commerce logistics EDA Model COLLABORATIVE Development Assessment
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Study on the Self-supporting Logistics Mode based on B2C E-commerce Enterprises
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作者 Ting LI 《International Journal of Technology Management》 2015年第2期87-89,共3页
Taking B2C E-commerce enterprises as the center, it can be divided into a set of logistics activities upstream supply chain logistics producer to B2C e-commerce enterprises, and the B2C e-commerce enterprise logistics... Taking B2C E-commerce enterprises as the center, it can be divided into a set of logistics activities upstream supply chain logistics producer to B2C e-commerce enterprises, and the B2C e-commerce enterprise logistics to client consumer, and the paper focuses on the study of self-supporting logistics for the E-commerce enterprise. According to the development status of current B2C electronic commerce enterprise in our country and logistics, the paper study B2C electric business enterprise how to correctly choose the logistics mode and how to promote the business logistics operation level. 展开更多
关键词 B2C e-commerce logistics distribution Self-supporting logistics Mode Operating mechanism
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Analyzing the Construction of the International Logistics Supply Chain Management Model from the Perspective of Cross-Border E-commerce
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作者 Wei Wu 《Journal of Electronic Research and Application》 2022年第3期26-30,共5页
Cross-border e-commerce has progressively evolved with the deepening of economic globalization,and it now holds a significant place in the field of e-commerce.However,due to China’s late entry into the international ... Cross-border e-commerce has progressively evolved with the deepening of economic globalization,and it now holds a significant place in the field of e-commerce.However,due to China’s late entry into the international logistics supply chain,there are issues such as complex environment,uneven information technology,and disagreements on standards,resulting in certain cross-border e-commerce disadvantages in China.Therefore,in this context,this study analyzes the construction of international logistics supply chain management model from the perspective of cross-border e-commerce,so as to provide some reference for the development of China’s international logistics supply chain. 展开更多
关键词 Cross-border e-commerce International logistics Supply chain management
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Research on logistics model under the trend of cross border E-commerce
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作者 ZHANG Mi CHEN Yaping 《International English Education Research》 2016年第5期57-59,共3页
The rapid development of cross-border e-commerce has brought a potentially huge market. But due to the complexity of logistics, capital flow, the credit mechanism is involved in cross-border electronic commerce, a ser... The rapid development of cross-border e-commerce has brought a potentially huge market. But due to the complexity of logistics, capital flow, the credit mechanism is involved in cross-border electronic commerce, a serious impediment to the further development of China's cross-border B2C e-commerce enterprises. In order to better promote the development of cross-border e-commerce, improve the competitiveness of cross-border e-commerce and logistics services, we must pay attention to the construction of cross-border logistics. Therefore, it can be improved and perfected through logistics control, personnel training and so on. 展开更多
关键词 cross-border e-business e-business logistics logistics mode
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The coordinated development of cross-border e-commerce and cross-border logistics research
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作者 BAI Zhezhe 《International English Education Research》 2016年第4期10-12,共3页
The cross-border e-commerce further development, its development is facing more and more challenges and bottlenecks. Among them, the development of cross-border logistics is a key factor restricting the development of... The cross-border e-commerce further development, its development is facing more and more challenges and bottlenecks. Among them, the development of cross-border logistics is a key factor restricting the development of cross-border e-commerce. Due to cross-border logistics development lags behind the cross-border e-commerce, caused many not coordinated between them Article analyzes the current cross-border e-commerce and cross-border logistics synergy development research present situation. Combined with cross-border e-commerce with cross-border logistics development present situation and the bottleneck problem, by means of literature data collection and investigation, the cross-border e-commerce with cross-border emphatically analyzed the present situation an-d problems of the coordinated development of logistics. Series and put forward the improvement measures, to promote the coordinated development of cross-border e-commerce and cross-border logistics and subsequent research has import-ant significance. 展开更多
关键词 Cross-border Electronic Commerce Cross-border logistics Synergism Development
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Legal Regulation of Head Anchors in Live-Streaming E-Commerce from the Perspective of Duty of Care 被引量:2
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作者 Ma Zhiguo Jia Jinrun Zhang Xiaohao 《科技与法律(中英文)》 2025年第2期125-137,共13页
The integration of the digital economy with the traditional sales industry has prompted the robust growth of e-commerce.Live-streaming e-commerce,as a novel business model,has gained immense popularity.However,is⁃sues... The integration of the digital economy with the traditional sales industry has prompted the robust growth of e-commerce.Live-streaming e-commerce,as a novel business model,has gained immense popularity.However,is⁃sues of regulatory loopholes and inefficacy continue to surface.In live-streaming e-commerce,the head anchor,as host of the live-streaming rooms,wields significant influence in determining the goods to be showcased and marketed.Such influence expands risks such as infringement of intellectual property rights.Yet the uncertainty in law concerning the identity of head anchors results in a lack of accountability.Current norms are inadequate in constraining the group of head anchors.Drawing on the principles of risk control,the alignment between benefit and risk,and the theory of so⁃cial cost control,this paper argues that it is both justifiable and feasible to impose a duty to exercise reasonable care on head anchors.To effectively enshrine this duty in law,it is of great importance to redefine the mechanism of identifying the duty of care of head anchors in live-streaming e-commerce.In particular,the contents of the duty of care under⁃taken by head anchors and the consequences of breaching such a duty of care should be clarified. 展开更多
关键词 head anchor live-streaming e-commerce digital economy duty of care
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Research on the Influencing Factors of China's Cross-border E-commerce Exports to Countries Along the“Belt and Road” 被引量:1
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作者 Xinhao Zhao 《Proceedings of Business and Economic Studies》 2025年第2期321-325,共5页
Cross-border e-commerce,as a new form of international trade,has shown great development potential in the context of the“Belt and Road”initiative.Based on the cross-border e-commerce export data from 2015 to 2024,th... Cross-border e-commerce,as a new form of international trade,has shown great development potential in the context of the“Belt and Road”initiative.Based on the cross-border e-commerce export data from 2015 to 2024,this paper analyzes the influencing factors of China's cross-border e-commerce exports to countries along the“Belt and Road”by constructing an econometric model.The study found that factors such as the perfection of digital infrastructure,the efficiency of logistics and transportation,the convenience of payment and settlement,and the penetration rate of consumers online shopping significantly affect the export scale of cross-border e-commerce.Institutional factors such as the development level of e-commerce platforms in countries along the route,market access thresholds,and tariff policies also play an important role.Based on the research results,suggestions are put forward to strengthen the construction of cross-border payment system,optimize the logistics distribution network,promote customs clearance facilitation,and deepen cooperation in the field of e-commerce,to provide references for promoting the development of China's crossborder e-commerce exports to countries along the“Belt and Road.” 展开更多
关键词 The Belt and Road Cross-border e-commerce Export trade Influencing factor
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临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤与甲状腺乳头状癌中的临床价值
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作者 张海欢 侯红梅 +2 位作者 闫荟同 李维生 李琴 《临床和实验医学杂志》 2026年第1期102-105,共4页
目的探讨临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤(PTL)与甲状腺乳头状癌(PTC)中的临床价值。方法回顾性选取2022年6月至2024年11月在北京市房山区良乡医院经病理证实的35例非弥漫型PTL和80例PTC的临床及超声... 目的探讨临床-超声多因素Logistic回归模型在鉴别非弥漫型原发性甲状腺淋巴瘤(PTL)与甲状腺乳头状癌(PTC)中的临床价值。方法回顾性选取2022年6月至2024年11月在北京市房山区良乡医院经病理证实的35例非弥漫型PTL和80例PTC的临床及超声影像学资料。分析非弥漫型PTL与PTC患者的临床资料(年龄、病灶长径、性别、甲状腺不对称增大及合并桥本甲状腺炎的情况)和超声特征(病灶回声类型、线状高回声、回声均匀性、边缘、囊性变、钙化、垂直位生长、后方回声增强、血流分级及包膜侵犯)。建立多因素Logistic回归模型,绘制受试者操作特征(ROC)曲线分析临床-超声因素鉴别诊断非弥漫型PTL与PTC的临床价值。结果单因素分析显示,非弥漫型PTL患者年龄、病灶长径、甲状腺不对称增大发生率和桥本甲状腺炎发生率均高于PTC患者,差异均有统计学意义(P<0.05);二者性别构成比差异无统计学意义(P>0.05)。非弥漫型PTL在极低回声、线状高回声、后方回声增强、血流丰富方面占比均高于PTC,而在边缘不规则、钙化和包膜侵犯方面占比均低于PTC,差异均有统计学意义(P<0.05);而二者回声均匀性、囊性变和垂直位占比比较,差异均无统计学意义(P>0.05)。多因素Logistic回归分析结果显示,年龄、病灶后方回声增强、线状高回声及钙化是鉴别二者的独立因素(P<0.05)。建立的回归方程为Logistic(Y)=3.451-0.081X1+3.204X2+3.237X3-2.935X4(X1:年龄;X2:后方回声增强;X3:线状高回声;X4:钙化),RE_1 ROC曲线下面积为0.932,鉴别二者的敏感度、特异度和准确性分别是91.4%、81.2%和88.6%。结论年龄、病灶后方回声增强、线状高回声和钙化可作为鉴别诊断非弥漫型PTL与PTC的可靠指标。临床-超声多因素Logistic回归模型在鉴别非弥漫型PTL和PTC中有较好的诊断效能。 展开更多
关键词 甲状腺癌 乳头状 超声检查 logistIC模型 原发性甲状腺淋巴瘤 鉴别诊断
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