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磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值 被引量:1
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作者 唐毅 张辉 +1 位作者 黄恺 黎本丰 《中国CT和MRI杂志》 2024年第4期163-165,共3页
目的探讨磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值。方法选取2020年1月至2022年11月在我院治疗的110例膝关节早期软骨退变患者(观察组),按照疾病严重程度分为轻度退变组及重度退变组,另选取同期在我... 目的探讨磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值。方法选取2020年1月至2022年11月在我院治疗的110例膝关节早期软骨退变患者(观察组),按照疾病严重程度分为轻度退变组及重度退变组,另选取同期在我院进行体检的64例健康者为对照组,受试者均行磁共振T1rho序列、T2 mapping技术扫描,测量受试者T2值及T1ρ值,探讨磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值。结果观察组股骨外侧面、股骨内侧面、胫骨外侧面、胫骨内侧面、髋骨面T2值均明显高于对照组(P<0.05),重度退变亚组患者股骨外侧面、股骨内侧面、胫骨外侧面、胫骨内侧面、髋骨面T2值显著高于轻度退变者(P<0.05);观察组股骨内踝负重区、股骨内踝非负重区、股骨外踝负重区、股骨外踝非负重区、胫骨外侧平台区、胫骨内侧平台区、髌后软骨区磁共振T1ρ值明显高于对照组(P<0.05),重度退变亚组患者股骨内踝负重区、股骨内踝非负重区、股骨外踝负重区、股骨外踝非负重区、胫骨外侧平台区、胫骨内侧平台区、髌后软骨区磁共振T1ρ值明显高于轻度退变亚组患者(P<0.05);磁共振T1rho序列在膝关节早期软骨退变中早期诊断及严重程度评估中的的诊断ROC值及特异度明显高于T2 mapping技术(P<0.05),但后者具有更高的敏感度(P<0.05)。结论磁共振T1rho序列、T2 mapping技术均能有效反映膝关节早期软骨退变中软骨组织学成分变化情况,还可为膝关节软骨退变严重程度评估提供客观依据,二者具有一定互补价值。 展开更多
关键词 磁共振T1rho序列 T2 mapping技术 膝关节 早期软骨退变 诊断
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Chen Shigong,Founder of“TCM Orthodox School of External Medicine”
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作者 Yongxuan Liang Yinghua Huang 《Journal of Traditional Chinese Medical Sciences》 CAS 2024年第2期141-142,共2页
Chen Shigong,styled name Yuren,was also known by the literary name Ruoxu.Coming from Donghaichongchuan(present Nantong City,Jiangsu Province)he was a famous traditional Chinese medicine(TCM)specialist of external medi... Chen Shigong,styled name Yuren,was also known by the literary name Ruoxu.Coming from Donghaichongchuan(present Nantong City,Jiangsu Province)he was a famous traditional Chinese medicine(TCM)specialist of external medicine of the Ming Dynasty(1368-1644).The Orthodox Lineage of External Medicine(Wai Ke Zheng Zong)written by him has been valued as the founder of the TCM Orthodox School of External Medicine. 展开更多
关键词 tcm medicine(tcm) MEDICINE
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ESTIMATE ON THE BLOCH CONSTANT FOR CERTAIN HARMONIC MAPPINGS UNDER A DIFFERENTIAL OPERATOR
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作者 陈洁玲 刘名生 《Acta Mathematica Scientia》 SCIE CSCD 2024年第1期295-310,共16页
In this paper,we first obtain the precise values of the univalent radius and the Bloch constant for harmonic mappings of the formL(f)=zfz-zfz,where f represents normalized harmonic mappings with bounded dilation.Then,... In this paper,we first obtain the precise values of the univalent radius and the Bloch constant for harmonic mappings of the formL(f)=zfz-zfz,where f represents normalized harmonic mappings with bounded dilation.Then,using these results,we present better estimations for the Bloch constants of certain harmonic mappings L(f),where f is a K-quasiregular harmonic or open harmonic.Finally,we establish three versions of BlochLandau type theorem for biharmonic mappings of the form L(f).These results are sharp in some given cases and improve the related results of earlier authors. 展开更多
关键词 Bloch-Landau type theorem Bloch constant linear complex operator harmonic mapping biharmonic mapping UNIVALENT
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My Relationship with TCM
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作者 RAMÓN MARIA CALDUCH 《China Today》 2024年第12期56-57,共2页
A Spanish businessman becomes a dedicated advocate of traditional Chinese medicine after witnessing its effects in treating his terminally ill young son.MY relationship with traditional Chinese medicine(TCM)-and with ... A Spanish businessman becomes a dedicated advocate of traditional Chinese medicine after witnessing its effects in treating his terminally ill young son.MY relationship with traditional Chinese medicine(TCM)-and with China-began in 1988,when I traveled to Beijing with my two-year-old son Joan.He was suffering from an extremely rare disease called leukoencephalopathy,in which the brain is affected,and we wanted to explore treatment possibilities. 展开更多
关键词 medicine(tcm) TRAVEL tcm
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DWI联合T2 mapping序列鉴别前列腺癌与前列腺增生价值评估 被引量:2
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作者 李茜玮 陈丽华 +2 位作者 王楠 林良杰 刘爱连 《磁共振成像》 CAS CSCD 北大核心 2024年第2期97-102,共6页
目的探讨扩散加权成像(diffusion-weighted imaging,DWI)联合T2 mapping序列鉴别前列腺癌(prostate cancer,PCa)与前列腺增生(benign prostatic hyperplasia,BPH)的价值。材料与方法回顾性分析本院行3.0 T MRI检查且经病理证实的56例PC... 目的探讨扩散加权成像(diffusion-weighted imaging,DWI)联合T2 mapping序列鉴别前列腺癌(prostate cancer,PCa)与前列腺增生(benign prostatic hyperplasia,BPH)的价值。材料与方法回顾性分析本院行3.0 T MRI检查且经病理证实的56例PCa患者及40例BPH患者资料。扫描序列包括T1WI、T2WI、DWI及T2 mapping序列。两名观察者分别测量两组病灶的表观扩散系数(apparent diffusion coefficient,ADC)值及T2值。采用组内相关系数(intra-class correlation coefficient,ICC)评估两名观察者测得参数值的一致性。采用独立样本t检验或Mann-Whitney U检验分析两组病例间ADC值及T2值的差异。Logistic回归用于分析差异具有统计学意义的参数及其与基线资料联合的诊断模型。采用受试者工作特征(receiver operating characteristic,ROC)曲线评估有差异参数及联合模型的诊断效能。采用DeLong检验比较ROC曲线下面积差异。采用Spearman相关系数分析ADC值与T2值相关性。结果两名观察者测量值一致性好(ICC>0.75)。PCa组的ADC值及T2值分别低于BPH组,差异具有统计学意义(P<0.01)。ADC值、T2值、ADC-T2及ADC-T2-年龄-总前列腺特异性抗原(total prostate specific antigen,TPSA)联合鉴别PCa与BPH的AUC值分别为0.843、0.830、0.896及0.927。DeLong检验显示ADC值与ADC-T2联合,ADC值、T2值、ADC-T2模型与ADC-T2-年龄-TPSA联合模型的ROC差异存在统计学意义(P<0.05)。ADC值与T2值呈正相关(r=0.331,P<0.01)。结论DWI及T2 mapping序列在鉴别PCa与BPH方面具有较好的价值,并且两序列联合临床指标时诊断效能提升,可为临床无创诊断PCa及BPH提供很好的指导意义。 展开更多
关键词 前列腺癌 前列腺增生 扩散加权成像 T2 mapping成像 磁共振成像 鉴别诊断
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T1 mapping技术及在评估心肌纤维化中的应用进展
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作者 李丹丹 王倩 +1 位作者 徐晶 张维升 《中国医学影像学杂志》 CSCD 北大核心 2024年第9期966-971,共6页
T1 mapping技术是近年来应用较为广泛的MRI新技术,其通过量化心肌组织的T1值和细胞外容积分数,可对导致心肌纤维化的疾病进行评估。本文综述T1 mapping的基本原理、扫描序列及在导致心肌纤维化的疾病中的应用,主要包括心梗、肥厚型心肌... T1 mapping技术是近年来应用较为广泛的MRI新技术,其通过量化心肌组织的T1值和细胞外容积分数,可对导致心肌纤维化的疾病进行评估。本文综述T1 mapping的基本原理、扫描序列及在导致心肌纤维化的疾病中的应用,主要包括心梗、肥厚型心肌病、扩张型心肌病、先天性心脏病、主动脉狭窄、高血压性心脏病、糖尿病心肌病、尿毒症性心肌病、射血分数保留型心衰、心脏移植等。 展开更多
关键词 磁共振成像 T1 mapping 心肌疾病 细胞外容积分数 综述
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MR弹性成像与钆塞酸二钠增强T1 mapping定量评估兔肝纤维化的对比研究
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作者 张豪 邹立秋 +2 位作者 钟文新 麦晓飞 石桥 《磁共振成像》 CAS CSCD 北大核心 2024年第8期172-178,共7页
目的评价MR弹性成像(magnetic resonance elastography,MRE)、钆塞酸二钠(gadolinium ethoxybenzyl diethyle netriamine pentaacetic acid,Gd-EOB-DTPA)增强T1 mapping在肝纤维化(liver fibrosis,LF)早期定量的价值。材料与方法实验材... 目的评价MR弹性成像(magnetic resonance elastography,MRE)、钆塞酸二钠(gadolinium ethoxybenzyl diethyle netriamine pentaacetic acid,Gd-EOB-DTPA)增强T1 mapping在肝纤维化(liver fibrosis,LF)早期定量的价值。材料与方法实验材料为新西兰大白兔(共120只),分为正常对照组(n=20)与肝纤维化组[LF组,50%四氯化碳(carbon tetrachloride,CCL_(4))油溶液模型,n=100],分别在第4、5、6、15周末取5只对照组与25只LF组兔行MRI肝脏轴位T1WI、MRE及Gd-EOB-DTPA增强T1 mapping扫描,测量肝脏弹性硬度(liver stiffness,LS)、平扫T1弛豫时间(T1_(native))及Gd-EOB-DTPA增强T1 mapping扫描20 min后T1弛豫时间(T1_(20min)),计算T1弛豫时间减少率(ΔT1_(20min))及1/T1弛豫时间增加值(ΔR1_(20min));采用Scheuer评分系统进行LF病理学分期,单因素方差分析对比各定量参数与LF分期间的差异,Spearman相关性分析比较各定量参数与LF病理分期相关性,受试者工作特征(receiver operating characteristic,ROC)曲线评估各定量参数对LF分期诊断效能。结果共纳入96只活兔模型,病理学评分:F0期15只、F1期22只、F2期22只、F3期18只、F4期19只。LS、T1_(native)、T1_(20min)、ΔT1_(20min)、ΔR1_(20min)于LF各期间差异均有统计学意义(P<0.05)。LS、T1_(native)、T1_(20min)、ΔT1_(20min)、ΔR1_(20min)均与LF分期相关(r=0.935、0.559、0.770、-0.418、-0.686,P<0.001)。F0 vs.F1~F4、F0 vs.F1~F2、F0 vs.F3~F4、F1~F2 vs.F3~F4的LS值ROC曲线下面积(area under the curve,AUC)分别为0.988、0.979、1.000、0.995,T1_(20min)值AUC分别为0.914、0.852、0.987、0.896。结论在评估LF早期诊断中,MRE及Gd-EOB-DTPA增强T1 mapping成像均显示出较好的诊断价值,MRE优于Gd-EOB-DTPA增强T1 mapping。 展开更多
关键词 肝纤维化 磁共振弹性成像 肝脏硬度 钆塞酸二钠 T1 mapping成像
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T1 mapping技术用于评估心尖肥厚型心肌病患者心肌钆沉积 被引量:1
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作者 杨宏志 兰天 杨如武 《中国医学影像技术》 CSCD 北大核心 2024年第2期226-230,共5页
目的观察T1 mapping技术用于评估心尖肥厚型心肌病(AHCM)患者心肌钆沉积的可行性。方法回顾性分析60例AHCM患者资料,根据是否接受含钆对比剂(GBCA)注射分为增强组和对照组各30例;基于2组心脏T1 mapping测量左心室基底部、中间部、心尖... 目的观察T1 mapping技术用于评估心尖肥厚型心肌病(AHCM)患者心肌钆沉积的可行性。方法回顾性分析60例AHCM患者资料,根据是否接受含钆对比剂(GBCA)注射分为增强组和对照组各30例;基于2组心脏T1 mapping测量左心室基底部、中间部、心尖部心肌T1值及相应层面脾脏T1值,计算T1相对值(T1R),比较组间及增强组内左心室不同部位心肌T1R,并对增强组T1R基于性别、年龄、体质量指数、心功能、高血压、高血脂、糖尿病、心尖厚度、射血分数、延迟强化、首次增强检查至末次复查间隔时间及GBCA总量进行进一步分析。结果组间T1R_(基底部)、T1R_(中间部)、T1R_(心尖部)差异均无统计学意义(t=0.329、1.484、0.720,P均>0.05)。增强组内,左心室不同部位心肌T1R差异无统计学意义(F=0.765,P>0.05),不同性别及有无高血压患者间心肌T1R差异均有统计学意义(P均<0.05)。结论T1 mapping技术可用于评估AHCM患者心肌钆沉积。 展开更多
关键词 心肌病 肥厚型 T1 mapping 心肌钆沉积
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基于T1 mapping技术的定量参数评估肝细胞肝癌微血管侵犯的研究
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作者 韦孟 冯秋霞 刘希胜 《现代肿瘤医学》 CAS 2024年第11期2059-2064,共6页
目的:探讨基于T1 mapping技术的定量参数在预测肝细胞肝癌(hepatocellular carcinoma,HCC)微血管侵犯(microvascular invasion,MVI)的价值。方法:回顾性分析34例接受肝脏特异性对比剂钆塞酸二钠(Gd-EOB-DTPA)增强MRI检查且术后病理及免... 目的:探讨基于T1 mapping技术的定量参数在预测肝细胞肝癌(hepatocellular carcinoma,HCC)微血管侵犯(microvascular invasion,MVI)的价值。方法:回顾性分析34例接受肝脏特异性对比剂钆塞酸二钠(Gd-EOB-DTPA)增强MRI检查且术后病理及免疫组化证实为HCC患者的临床及磁共振影像资料,根据MVI状态分为MVI阳性组(21例)及MVI阴性组(13例)。所有患者均行平扫期及平衡期的T1 mapping成像,测量肿瘤实质部分、肿瘤整体、瘤周1 cm以及正常肝实质背景的T1弛豫时间,结合红细胞压积水平,计算肿瘤实质及肿瘤整体的细胞外容积分数(ECV)。比较MVI两组之间各T1弛豫时间及ECV定量参数之间的差异,采用受试者工作特征(receiver operating characteristic,ROC)曲线评价各变量的诊断效能,并计算截断值、敏感度、特异度及曲线下面积(area under curve,AUC)。结果:MVI阳性组与MVI阴性组间在瘤周1 cm增强前T1弛豫时间、肿瘤实质ECV和肿瘤整体ECV上差异有统计学意义(P<0.05),AUC分别为0.707(95%CI:0.509~0.905)、0.780(95%CI:0.593~0.967)和0.736(95%CI:0.5469~0.9256)。结论:基于T1 mapping技术的瘤周1 cm增强前T1弛豫时间、肿瘤实质ECV及肿瘤整体ECV均可反映HCC患者的MVI状态,临床应用具有一定的可行性。 展开更多
关键词 T1 mapping 细胞外容积分数 肝细胞肝癌 微血管侵犯
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T1 mapping联合胆道-椎旁肌信号强度比预测肝功能的价值
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作者 马博洋 徐辉 +1 位作者 杨正汉 朱文雁 《中国医学影像学杂志》 CSCD 北大核心 2024年第7期699-703,708,共6页
目的探讨钆塞酸二钠增强MRI T1 mapping联合胆道-椎旁肌信号强度比评估肝功能的价值。资料与方法前瞻性收集北京友谊医院2020年8月—2022年2月72例行钆塞酸二钠增强MRI的患者,将患者按照肝功能Child-Pugh分级分为肝功能正常组22例、A级... 目的探讨钆塞酸二钠增强MRI T1 mapping联合胆道-椎旁肌信号强度比评估肝功能的价值。资料与方法前瞻性收集北京友谊医院2020年8月—2022年2月72例行钆塞酸二钠增强MRI的患者,将患者按照肝功能Child-Pugh分级分为肝功能正常组22例、A级组35例、B+C级组15例。患者均于增强前及增强后20 min扫描T1 mapping序列,测量肝实质的增强前及增强后(T1post)T1弛豫时间,并计算肝脏T1弛豫时间减少率(ΔT1)。在肝胆期图像上测量胆道信号及椎旁肌信号,计算胆道-椎旁肌信号强度比(SIR)。评价医师间测量结果的一致性,观察各指标与肝功能分级的相关性,比较不同组间各指标的差异和诊断效能。结果T1post与肝功能分级呈正相关(r=0.683,P<0.001),随肝功能受损程度加重逐渐增加。ΔT1、SIR、SIR×ΔT1与肝功能分级呈负相关(r=-0.764、-0.729、-0.826,P均<0.001),随肝功能受损程度加重逐渐减小。T1post、ΔT1、SIR、SIR×ΔT1在各肝功能分级组间差异均有统计学意义(F=27.491、55.782、48.410、46.809,P均<0.05);两两比较中,各指标差异均有统计学意义(P<0.05)。各指标中的诊断效能最优者为SIR×ΔT1,其鉴别肝功能正常组与肝硬化组、A级组与B+C级组的曲线下面积分别为0.915、0.984。结论T1post、ΔT1、SIR、SIR×ΔT1与肝功能Child-Pugh分级均有较强的相关性。SIR×ΔT1在各组间鉴别能力更好,可作为定量评估肝功能的影像指标。 展开更多
关键词 T1 mapping 信号强度比 肝功能 钆塞酸二钠 磁共振成像
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磁共振T1 mapping及ECV技术在扩张型心肌病中的应用进展
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作者 赵凯迪 曹新山 《磁共振成像》 CAS CSCD 北大核心 2024年第5期204-208,共5页
扩张型心肌病(dilated cardiomyopathy,DCM)是由心室腔扩张或者扩大而导致心肌收缩功能受损,这种病症属于一种常见的、有明显家族史的心血管系统疾病。心肌磁共振钆对比剂延迟强化(late gadolinium enhancement,LGE)可被广泛用作无创心... 扩张型心肌病(dilated cardiomyopathy,DCM)是由心室腔扩张或者扩大而导致心肌收缩功能受损,这种病症属于一种常见的、有明显家族史的心血管系统疾病。心肌磁共振钆对比剂延迟强化(late gadolinium enhancement,LGE)可被广泛用作无创心肌纤维化诊断的有效手段,但其对弥漫性心肌纤维化诊断的精确程度有所欠缺,因此在临床应用中存在一定的局限性。近年来,T1 mapping技术的临床应用为医学影像学带来了巨大的变革,特别是对于弥漫性心肌纤维化的诊断、识别、预后判断等,它可以以极高的精确度检测出T1值以及细胞外容积(extracellular volume,ECV),对DCM进行全方位评估。本文就T1 mapping及ECV在DCM患者的早期诊断、相关疾病鉴别、风险分层及预后评估和治疗疗效评估中的最新应用进展予以总结,旨在提高DCM的早期检出率,对患者的病情进展进行更加准确的判断,从而为患者制订出最佳的治疗策略,改善患者的预后,并有望为将来的研究提供参考。 展开更多
关键词 扩张型心肌病 心肌弥漫纤维化 T1 mapping 细胞外体积分数 磁共振成像 早期诊断
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Identification of candidate genes for early-maturity traits by combining BSA-seq and QTL mapping in upland cotton(Gossypium hirsutum L.) 被引量:1
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作者 Liang Ma Tingli Hu +7 位作者 Meng Kang Xiaokang Fu Pengyun Chen Fei Wei Hongliang Jian Xiaoyan Lü Meng Zhang Yonglin Yang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第10期3472-3486,共15页
Cotton breeding for the development of early-maturing varieties is an effective way to improve multiple cropping indexes and alleviate the conflict between grains and cotton in the cultivated fields in China.In the pr... Cotton breeding for the development of early-maturing varieties is an effective way to improve multiple cropping indexes and alleviate the conflict between grains and cotton in the cultivated fields in China.In the present study,we aimed to identify upland cotton quantitative trait loci(QTLs)and candidate genes related to early-maturity traits,including whole growth period(WGP),flowering timing(FT),node of the first fruiting branch(NFFB),height of the node of the first fruiting branch(HNFFB),and plant height(PH).An early-maturing variety,CCRI50,and a latematuring variety,Guoxinmian 11,were crossed to obtain biparental populations.These populations were used to map QTLs for the early-maturity traits for two years(2020 and 2021).With BSA-seq analysis based on the data of population 2020,the candidate regions related to early maturity were found to be located on chromosome D03.We then developed 22 polymorphic insertions or deletions(InDel)markers to further narrow down the candidate regions,resulting in the detection of five and four QTLs in the 2020 and 2021 populations,respectively.According to the results of QTL mapping,two candidate regions(InDel_G286-InDel_G144 and InDel_G24-InDel_G43)were detected.In these regions,three genes(GH_D03G0451,GH_D03G0649,and GH_D03G1180)have nonsynonymous mutations in their exons and one gene(GH_D03G0450)has SNP variations in the upstream sequence between CCRI50 and Guoxinmian 11.These four genes also showed dominant expression in the floral organs.The expression levels of GH_D03G0451,GH_D03G0649 and GH_D03G1180 were significantly higher in CCRI50 than in Guoxinmian 11 during the bud differentiation stages,while GH_D03G0450 showed the opposite trend.Further functional verification of GH_D03G0451 indicated that the GH_D03G0451-silenced plants showed a delay in the flowering time.The results suggest that these are the candidate genes for cotton early maturity,and they may be used for breeding early-maturity cotton varieties. 展开更多
关键词 cotton genomics early-maturity traits BSA-seq QTL mapping molecular breeding
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Identification and fine mapping of qSW2 for leaf slow wilting in soybean 被引量:1
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作者 Shengyou Li Changling Wang +5 位作者 Chunjuan Yan Xugang Sun Lijun Zhang Yongqiang Cao Wenbin Wang Shuhong Song 《The Crop Journal》 SCIE CSCD 2024年第1期244-251,共8页
Drought is one of the abiotic stresses limiting the production of soybean(Glycine max).Elucidation of the genetic and molecular basis of the slow-wilting(SW)trait of this crop offers the prospect of its genetic improv... Drought is one of the abiotic stresses limiting the production of soybean(Glycine max).Elucidation of the genetic and molecular basis of the slow-wilting(SW)trait of this crop offers the prospect of its genetic improvement.A panel of 188 accessions and a set of recombinant inbred lines produced from a cross between cultivars Liaodou 14 and Liaodou 21 were used to identify quantitative-trait loci(QTL)associated with SW.Plants were genotyped by Specific-locus amplified fragment sequencing and seedling leaf wilting was assessed under three water-stress treatments.A genome-wide association study identified 26 SW-associated single-nucleotide polymorphisms(SNPs),including three located in a 248-kb linkage-disequilibrium(LD)block on chromosome 2.Linkage mapping revealed a major-effect QTL,qSW2,associated with all three treatments and adjacent to the LD block.Fine mapping in a BC_(2)F_(3) population derived from a backcross between Liaodou 21 and R26 confined qSW2 to a 60-kb interval.Gene expression and sequence variation analysis identified the gene Glyma.02 g218100,encoding an auxin transcription factor,as a candidate gene for qSW2.Our results will contribute significantly to improving drought-resistant soybean cultivars by providing genetic information and resources. 展开更多
关键词 Drought GWAS Linkage mapping Slow wilting Soybean(Glycine max)
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TCM抗阻训练在肥胖型阻塞性睡眠呼吸暂停低通气综合征患者中的应用
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作者 汪涵珠 王佳 +1 位作者 闵亚琴 陈兰 《齐鲁护理杂志》 2024年第17期130-133,共4页
目的:探讨过渡期护理(TCM)抗阻训练在肥胖型阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者中的应用效果。方法:选取2022年1月1日~2023年1月1日接受治疗的102例肥胖型OSAHS患者作为研究对象,根据随机数字表法将其分为对照组和研究组各51例... 目的:探讨过渡期护理(TCM)抗阻训练在肥胖型阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者中的应用效果。方法:选取2022年1月1日~2023年1月1日接受治疗的102例肥胖型OSAHS患者作为研究对象,根据随机数字表法将其分为对照组和研究组各51例。对照组行常规抗阻训练,研究组行TCM抗阻训练;对比两组入院次日、出院1个月时体质指标[包括体质量指数(BMI)、颈围、腹围]、嗜睡程度[采用中文版Epworth嗜睡量表(ESS)]及生活质量[采用睡眠呼吸暂停低通气综合征生命质量评估表(QOL-OSAHS)]。结果:共有102例患者参与研究,其中对照组有1例在中途失访剔除,最后101例患者完整参与研究。出院1个月时,两组BMI、颈围、腹围及均ESS评分均低于入院次日(P<0.05),且研究组低于对照组(P<0.05);出院1个月时,两组QOL-OSAHS评分高于入院次日(P<0.05),且研究组高于对照组(P<0.05)。结论:TCM抗阻训练可有效改善肥胖型OSAHS患者体质指标,提升睡眠质量和生活质量。 展开更多
关键词 tcm抗阻训练 肥胖型呼吸暂停综合征 体质指标 睡眠质量 生活质量
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Exploring deep learning for landslide mapping:A comprehensive review 被引量:1
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作者 Zhi-qiang Yang Wen-wen Qi +1 位作者 Chong Xu Xiao-yi Shao 《China Geology》 CAS CSCD 2024年第2期330-350,共21页
A detailed and accurate inventory map of landslides is crucial for quantitative hazard assessment and land planning.Traditional methods relying on change detection and object-oriented approaches have been criticized f... A detailed and accurate inventory map of landslides is crucial for quantitative hazard assessment and land planning.Traditional methods relying on change detection and object-oriented approaches have been criticized for their dependence on expert knowledge and subjective factors.Recent advancements in highresolution satellite imagery,coupled with the rapid development of artificial intelligence,particularly datadriven deep learning algorithms(DL)such as convolutional neural networks(CNN),have provided rich feature indicators for landslide mapping,overcoming previous limitations.In this review paper,77representative DL-based landslide detection methods applied in various environments over the past seven years were examined.This study analyzed the structures of different DL networks,discussed five main application scenarios,and assessed both the advancements and limitations of DL in geological hazard analysis.The results indicated that the increasing number of articles per year reflects growing interest in landslide mapping by artificial intelligence,with U-Net-based structures gaining prominence due to their flexibility in feature extraction and generalization.Finally,we explored the hindrances of DL in landslide hazard research based on the above research content.Challenges such as black-box operations and sample dependence persist,warranting further theoretical research and future application of DL in landslide detection. 展开更多
关键词 Landslide mapping Quantitative hazard assessment Deep learning Artificial intelligence Neural network Big data Geological hazard survery engineering
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3.0T磁共振T2 mapping在腰椎间盘退行性变分级评估中的应用
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作者 霍平 高翔 《山西卫生健康职业学院学报》 CAS 2024年第2期28-30,共3页
目的:探究3.0T磁共振(MRI)T2弛豫时间图(T2 mapping)在腰椎间盘退行性变分级评估中的应用价值。方法:选取200例腰椎间盘退变患者作为研究对象,应用GE Discovery 750W 3.0T MRI成像系统对椎间盘进行扫描,扫描序列包括常规腰椎MRI以及T2 m... 目的:探究3.0T磁共振(MRI)T2弛豫时间图(T2 mapping)在腰椎间盘退行性变分级评估中的应用价值。方法:选取200例腰椎间盘退变患者作为研究对象,应用GE Discovery 750W 3.0T MRI成像系统对椎间盘进行扫描,扫描序列包括常规腰椎MRI以及T2 mapping序列,在T2加权像(T2WI)上依据Pfirrmann分级法对腰椎间盘进行评级,绘制ROC曲线分析T2值对Pfirrmann分级诊断的效能。结果:本研究200例受检者共1000个椎间盘,其中Pfirrmann分级Ⅰ~Ⅴ级分别为110例、370例、460例、50例和10例。Ⅰ~Ⅴ级间前纤维环、后纤维环以及髓核的T2值比较差异具有统计学意义(P<0.05);前纤维环、后纤维环以及髓核T2值中,Ⅳ级与Ⅴ级间比较差异均无统计学意义(P>0.05),其余各组间Ⅰ~Ⅱ级、Ⅱ~Ⅲ级、Ⅲ~Ⅳ级髓核T2值比较差异均有统计学意义(P<0.05)。Pearson相关分析显示,髓核的T2值与Pfirrmann分级呈负相关(r=-0.57,P<0.05)。PfirrmannⅠ~Ⅱ级、Ⅱ~Ⅲ级、Ⅲ~Ⅳ级腰椎间盘髓核T2值的AUC分别为0.770、0.775、0.824,对应的cut off值分别为129.96ms、106.02ms、74.40ms(P<0.05)。结论:3.0T MRI T2 Mapping检查可用于腰椎间盘退变分级评估,髓核T2值能够为影像学量化诊断腰椎间盘退变程度提供依据。 展开更多
关键词 椎间盘退变 T2 mapping成像 Pfirrmann分级 诊断
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中医药团体标准评价体系(SCORE-TCM)解读
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作者 宗星煜 王丁熠 +15 位作者 王丽颖 赵学尧 林甲昊 刘斌 虞雪云 郭旸 梁宁 车前子 蒋寅 张海力 龚照元 李安 王巍力 李慧珍 史楠楠 王燕平 《中国中医基础医学杂志》 CAS CSCD 2024年第4期622-626,共5页
本文全面解读了中医药团体标准评价体系(System of Consortium Standards Rating and Evaluation of Traditional Chinese Medicine,SCORE-TCM)。SCORE-TCM是结合定性与定量评价,全面评估中医药团体标准在制定主体、文本编写、技术内容... 本文全面解读了中医药团体标准评价体系(System of Consortium Standards Rating and Evaluation of Traditional Chinese Medicine,SCORE-TCM)。SCORE-TCM是结合定性与定量评价,全面评估中医药团体标准在制定主体、文本编写、技术内容、推广应用和实施效益等几方面特征的综合评价工具。文中详述了SCORE-TCM的构建目的、定义和构建过程,解释了评价指标体系中的各项指标,并对每项指标的评价材料进行介绍。本文旨在帮助中医药团体标准的制定者、第三方评价机构和其他相关方更好地理解SCORE-TCM各评价条目的含义,更有效地运用于中医药团体标准的自评价或第三方评价,SCORE-TCM将为《中医药团体标准管理办法》的贯彻实施,以及中医药团体标准的高质量发展提供技术支持。 展开更多
关键词 中医药 团体标准 SCORE-tcm 评价工具 解读
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B1场校正T1 mapping用于鉴别肺癌病理分型及分化程度
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作者 李真真 徐高峰 +5 位作者 符益纲 肖勇 朱明明 周笑 史讯 江建芹 《中国医学影像技术》 CSCD 北大核心 2024年第2期231-234,共4页
目的 观察B1场校正T1 mapping用于鉴别肺癌病理分型及分化程度的价值。方法 前瞻性纳入65例肺癌患者共74处病灶,包括低分化49处、中高分化25处,其中腺癌42处、鳞癌14处、小细胞肺癌(均为低分化)18处。采集B1场校正T1 mapping图像;以2种... 目的 观察B1场校正T1 mapping用于鉴别肺癌病理分型及分化程度的价值。方法 前瞻性纳入65例肺癌患者共74处病灶,包括低分化49处、中高分化25处,其中腺癌42处、鳞癌14处、小细胞肺癌(均为低分化)18处。采集B1场校正T1 mapping图像;以2种方法勾画ROI(ROI1、ROI2),观察不同病理分型及不同分化程度肺癌T1值的差异;绘制受试者工作特征(ROC)曲线,计算曲线下面积(AUC),评估B1场校正T1 mapping鉴别肺癌病理分型及分化程度的价值。结果 不同病理分型肺癌T1值差异均有统计学意义(P均<0.05);小细胞肺癌与其他2种类型肺癌T1值差异均有统计学意义(P均<0.05)。低与中高分化肺癌(鳞癌+腺癌)T1值差异有统计学意义(P均<0.05)。以ROI1 T1值=1 524.21 ms为截断值,其鉴别低与中高分化肺癌(鳞癌+腺癌)的AUC为0.698,敏感度为64.50%,特异度为76.00%;而以ROI2 T1值=1 630.68 ms为截断值,其AUC为0.676,敏感度为54.80%,特异度为80.00%。结论 B1场校正T1 mapping有助于鉴别肺癌病理分型及分化程度。 展开更多
关键词 肺肿瘤 病理学 磁共振成像 T1 mapping 前瞻性研究
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From Research on TCM Images to Historiography of TCM Images——Comments on History of Chinese Image Culture:Medical Image Volume
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作者 WEI Ran HUANG Zuozhen 《Chinese Medicine and Culture》 2024年第3期262-268,共7页
1 Introduction.Chinese medicine has a long and rich history,dating back to the classics of the Qin and Han dynasties and extending to the integration of Chinese and Western medicine in the modern era.The vast amount o... 1 Introduction.Chinese medicine has a long and rich history,dating back to the classics of the Qin and Han dynasties and extending to the integration of Chinese and Western medicine in the modern era.The vast amount of literature and scholarly works in this field makes it essential to thoroughly study the history of traditional Chinese medicine(TCM)in order to understand its development path throughout the ages and boost innovation based on tradition.This is why the sages emphasized the importance of“classifying the works into different schools and tracing back to their origins”(辨章学术,考镜源流). 展开更多
关键词 IMAGE tcm HISTORY
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Integrated Geological and Geophysical Mapping for Groundwater Potential Studies at Ekwegbe-Agu and Environs, Enugu State, Nigeria
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作者 Charles Chibueze Ugbor Ugochukwu Kingsley Ogbodo Osita Kelechi Eze 《Open Journal of Geology》 CAS 2024年第4期513-547,共35页
The study integrates both the geological and geophysical mapping techniques for groundwater potential studies at Ekwegbe-Agu and the environs, Enugu state, Nigeria for optimal citing of borehole. Located in the Anambr... The study integrates both the geological and geophysical mapping techniques for groundwater potential studies at Ekwegbe-Agu and the environs, Enugu state, Nigeria for optimal citing of borehole. Located in the Anambra Basin between latitudes 6˚43'N and 6˚47'N and longitudes 7˚28'E and 7˚32'E, it is stratigraphycally underlain by, from bottom to top, the Enugu/Nkporo, Mamu and Ajali Formation respectively, a complex geology that make citing of productive borehole in the area problematic leading to borehole failure and dry holes due to inadequate sampling. The study adopted a field and analytic sampling approach, integrating field geological, electrical resistivity and self-potential methods. The software, SedLog v3.1, InterpexIx1Dv.3, and Surfer v10 were employed for the data integration and interpretation. The result of the geological field and borehole data shows 11 sedimentary facies consisting of sandstone, shales and heterolith of sandstone/shale, with the aquifer zone mostly prevalent in the more porous sand-dominated horizons. Mostly the AK and HK were the dominant curve types. An average of 6 geo-electric layers were delineated across all transects with resistivity values ranging from 25.42 - 105.85 Ωm, 186.38 - 3383.3 Ωm, and 2992 - 6286.4 Ωm in the Enugu, Mamu and Ajali Formations respectively. The resistivity of the main aquifer layer ranges from 1 to 500 Ωm. The aquifer thickness within the study area varies between 95 and 140 m. The western and northwestern part of the study area which is underlain mainly by the Ajali Formation showed the highest groundwater potential in the area and suitable for citing productive boreholes. 展开更多
关键词 SEISMIC Ekwegbe-Agu GROUNDWATER RESISTIVITY Field mapping Borehole Logging
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