Results 71 to 80 of about 8,117 (155)

Research progress on medical imaging-based artificial intelligence in precision diagnosis and treatment of pancreatic cancer [PDF]

open access: yes
Pancreatic cancer is a highly malignant tumor of the digestive tract, and its precision diagnosis and treatment is a major challenge in clinical practice.
Zhu Lubing, Wang Jianhua
core   +1 more source

P53、SOX2、GAGE-7联合人工智能量化参数构建列线图模型预测浸润性肺腺癌病理分级

open access: yesZhongguo shiyan zhenduanxue
目的探讨基于肺癌自身抗体谱和人工智能(AI)量化参数的列线图模型在预测浸润性肺腺癌(IAC)病理分级中的临床应用价值。方法回顾性收集2023年9月至2024年11月于山东大学附属省立医院术后病理诊断为浸润性肺腺癌患者238例,依据2021年WHO新分类肺腺癌病理分级标准,将其分为Ⅲ级IAC组58例,非Ⅲ级IAC组180例。比较两组间参数差异,采用多因素logistic回归筛选IAC预后分级的独立预测因素并构建Ⅲ级IAC预测模型,并进行内部验证以评估其效能,用列线图进行可视化描述。结果(1 ...
范嘉铭   +6 more
doaj  

Practical exploration of constructing a predictive model for sarcopenia in elderly patients with stable chronic obstructive pulmonary disease based on modified frailty index (基于改良衰弱指数构建老年慢性阻塞性肺病稳定期患者发生肌少症预测模型的实践探索)

open access: yes中西医结合护理
Objective To construct a preliminary model for predicting the risk of sarcopenia in elderly patients with stable chronic obstructive pulmonary disease (COPD) based on the modified frailty index (mFI-5).
SHEN Xiuru (沈秀茹)
doaj   +1 more source

早期喉癌术后吞咽障碍的列线图预测模型构建 附视频

open access: yesZhongguo shiyan zhenduanxue
目的 构建预测早期喉癌术后吞咽障碍的列线图模型。方法 回顾性分析南阳市中心医院2020年3月至2022年5月收治的154例早期喉癌患者的临床资料,根据术后2周内是否发生吞咽障碍分成病例组和对照组。开展单因素分析,通过Logistic回归分析患者术后吞咽障碍的影响因素,利用R软件并基于预测变量构建预测吞咽障碍发生的列线图模型。以ROC曲线下面积(AUC)评估模型的预测效果,并行HL拟合优度检验。结果 154例患者术后发生吞咽障碍49例(31.82%);病例组年龄≥60岁、有吸烟史、有咽喉反流性疾病史 ...
doaj   +2 more sources

基于时间序列模型的劣化绝缘子红外热像检测方法

open access: yesDianci bileiqi, 2020
在使用传统红外热像法对绝缘子进行检测时,绝缘子的劣化特征并不稳定,容易导致漏检、误检。针对这个问题,本文提出了时间序列模型与红外热像处理技术相结合的劣化绝缘子识别方法。本方法使用中值滤波与线性平滑滤波优化图像质量;采用OTSU分割法结合钢帽、盘面的形态差异将绝缘子钢帽部分进行提取,实现绝缘子钢帽温度的自动提取;考虑到绝缘子温升受到多因素影响,采用ARIMA时间序列模型对绝缘子串温度时间序列进行拟合,对其温升变化进行预测,从预测结果中找到劣化特征明显的温度曲线进行判别;试验结果表明 ...
周友维   +6 more
doaj  

肺癌患者合并肺部真菌感染的风险预测模型

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2023
目的探究肺癌患者合并肺部感染的风险因素,构建和验证一个风险预测模型,使用现有的临床数据来预测肺癌患者的肺部真菌感染风险。方法这是一项回顾性研究,收集了2021年1月至2023年3月在中山市人民医院接受治疗的390例肺癌患者的信息,利用合并和不合并肺部真菌感染的肺癌患者人口统计学和临床特征来构建预测发生肺部真菌感染的列线图。所有患者按7:3的比例随机分为训练集和内部验证集两组,应用LASSO回归方法筛选变量和选择预测因子,并使用训练集的多元logistic回归方法构建列线图模型 ...
杜伟伟   +4 more
doaj  

Research progress and prospects of MRI in predicting lymph node status in breast cancer [PDF]

open access: yes
Breast cancer stands as the most prevalent malignancy and the primary cause of cancer-related mortality among women globally. The lymph node status is not only pivotal for accurate clinical staging of breast cancer but also significantly associated with ...
ZHAI Zihan, CHEN Sheng
core   +1 more source

基于改进箱线图和ISMAHHO-KELM的变压器油中溶解气体体积分数预测

open access: yesGaoya dianqi
油中溶解气体分析能够有效地揭示变压器内部的运行状况,在评估变压器运行状态和预测潜在故障方面具有重要作用。为此文中提出一种基于改进箱线图和ISMAHHO-KELM的变压器油中溶解气体体积分数预测方法。首先,为提高数据质量,利用基于中位偏差系数的改进箱线图对原始时间序列进行离群值检测和校正;然后采用变分模态分解对校正过的时间序列进行分解,得到多个子序列,以削弱时间序列的非平稳性;其次,通过核极限学习机模型预测子序列,同时提出改进黏菌—哈里斯鹰算法优化其超参数;最后,重构各子序列的预测值,得到最终预测结果 ...
付文龙   +3 more
doaj  

[Establishment of a nomogram model for predicting the risk of early-onset sepsis in very preterm infants]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2023
Wei XY   +4 more
europepmc   +1 more source

Predicting delayed diagnosis rate of intraoperative rapid frozen section pathological examination for early-stage breast cancer: a real-world retrospective study [PDF]

open access: yes
Background and purpose: For few of early-stage breast cancers who are undiagnosed by core needle biopsy, the delayed diagnosis rate of intraoperative rapid frozen section pathological examination is unclear. The purpose of this retrospective cohort study
XUE Jialei, LI Jianwei, GONG Yue, LIU Guangyu, LIU Zhebin
core   +1 more source

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