目的调查经桡动脉入路(transradial access,TRA)在中国医院外周介入中的应用现状、存在问题以及各单位开展桡动脉入路的具体需求,以便更好地推广和发展TRA在外周手术中的应用。方法2022年中国抗癌协会肿瘤介入专业委员会(Committee of I...目的调查经桡动脉入路(transradial access,TRA)在中国医院外周介入中的应用现状、存在问题以及各单位开展桡动脉入路的具体需求,以便更好地推广和发展TRA在外周手术中的应用。方法2022年中国抗癌协会肿瘤介入专业委员会(Committee of Interventional Oncology of China Anti-Cancer Association)采用横断面调查方法,在全国范围内调查TRA外周介入手术情况并进行统计学分析。结果共60家医院参与了调查问卷填写,结果显示TRA外周介入手术量远低于经股动脉入路(transfemoral access,TFA),且在各医院之间存在较大差异。阻碍TRA开展的首要因素是无合适的导管和桡动脉穿刺困难。86.67%的医疗机构希望器械改进或研发新器械,尤其是导管、微导管、导丝。60.00%医疗机构希望能加强系统性培训以及进行多中心临床研究。结论国内多家医疗机构已熟练掌握TRA外周介入手术,但须加强系统性培训及进一步普及TRA在外周介入的应用,而且更适合TRA的器械亟待研发。展开更多
Research of infinite-layer nickelates has unveiled a broken translation symmetry,which has sparked significant interest in its root,its relationship to superconductivity,and its comparison to charge order in cuprates....Research of infinite-layer nickelates has unveiled a broken translation symmetry,which has sparked significant interest in its root,its relationship to superconductivity,and its comparison to charge order in cuprates.In this study,resonant x-ray scattering measurements were performed on thin films of infinite-layer PrNiO_(2+δ).The results show significant differences in the superlattice reflection at the Ni L_(3) absorption edge compared to that at the Pr M_(5) resonance in their dependence on energy,temperature,and local symmetry.These differences point to two distinct charge orders,although they share the same in-plane wavevectors.It is suggested that these dissimilarities could be linked to the excess oxygen dopants,given that the resonant reflections were observed in an incompletely reduced PrNiO_(2+δ)film.Furthermore,azimuthal analysis indicates that the oxygen ligands likely play a crucial role in the charge modulation revealed at the Ni L_(3) resonance.展开更多
文摘目的调查经桡动脉入路(transradial access,TRA)在中国医院外周介入中的应用现状、存在问题以及各单位开展桡动脉入路的具体需求,以便更好地推广和发展TRA在外周手术中的应用。方法2022年中国抗癌协会肿瘤介入专业委员会(Committee of Interventional Oncology of China Anti-Cancer Association)采用横断面调查方法,在全国范围内调查TRA外周介入手术情况并进行统计学分析。结果共60家医院参与了调查问卷填写,结果显示TRA外周介入手术量远低于经股动脉入路(transfemoral access,TFA),且在各医院之间存在较大差异。阻碍TRA开展的首要因素是无合适的导管和桡动脉穿刺困难。86.67%的医疗机构希望器械改进或研发新器械,尤其是导管、微导管、导丝。60.00%医疗机构希望能加强系统性培训以及进行多中心临床研究。结论国内多家医疗机构已熟练掌握TRA外周介入手术,但须加强系统性培训及进一步普及TRA在外周介入的应用,而且更适合TRA的器械亟待研发。
基金supported by the National Natural Science Foundation of China(Grant No.12074411)the National Key Research and Development Program of China(Grant Nos.2022YFA1403900 and 2021YFA1401800)+1 种基金the Strategic Priority Research Program(B)of the Chinese Academy of Sciences(Grant No.XDB25000000)the Swiss National Science Foundation(Grant No.200021_188564)。
文摘Research of infinite-layer nickelates has unveiled a broken translation symmetry,which has sparked significant interest in its root,its relationship to superconductivity,and its comparison to charge order in cuprates.In this study,resonant x-ray scattering measurements were performed on thin films of infinite-layer PrNiO_(2+δ).The results show significant differences in the superlattice reflection at the Ni L_(3) absorption edge compared to that at the Pr M_(5) resonance in their dependence on energy,temperature,and local symmetry.These differences point to two distinct charge orders,although they share the same in-plane wavevectors.It is suggested that these dissimilarities could be linked to the excess oxygen dopants,given that the resonant reflections were observed in an incompletely reduced PrNiO_(2+δ)film.Furthermore,azimuthal analysis indicates that the oxygen ligands likely play a crucial role in the charge modulation revealed at the Ni L_(3) resonance.
