Results 61 to 70 of about 2,052 (140)

Optimization of Dual-energy Spectral Lower-extremity Computed Tomography Venography Scanning Protocol: Phantom Study [PDF]

open access: yes
Objective: To optimize a scanning protocol for dual-energy spectral lower-extremity computed tomography venography (CTV) based on a phantom study.
Beibei LI   +5 more
core   +1 more source

Applicability of Different Iterative Reconstruction Algorithms in Orbital Computed Tomography [PDF]

open access: yes
Objective: This study aimed to investigate the value of different iterative reconstruction algorithms for orbital computed tomography (CT). Methods: Orbital CT data from 31 patients were retrospectively collected from January to March 2024 at Beijing ...
Lei ZHU   +6 more
core   +1 more source

冠状动脉CT对疑似冠心病患者长期心血管事件预测价值的研究

open access: yesZhongguo shiyan zhenduanxue, 2013
目的探讨螺旋CT冠状动脉成像(CTCA)判断可疑冠心病患者长期预后的价值。方法收集2010年1月至2012年12月534例接受CTCA检查的患者,分析其CTA结果,评估影响患者预后的危险因素。随访终点事件包括心源性死亡、心肌梗死、不稳定型心绞痛以及住院接受经皮冠状动脉介入治疗(PCI)、冠状动脉搭桥术(CABG)、溶栓治疗。结果 15例患者失访,8例患者因图像质量较差、不能用于评价而被排除。平均随访(22.74±7.27)个月。180例检查正常者中,1例死亡 ...
王小红   +5 more
doaj  

Expressive art Therapy for autistic children——autistic children from an education center for autistic children in Xiamen for the study [PDF]

open access: yes, 2010
表现性艺术治疗,是指透过音乐、舞蹈、戏剧、视觉艺术等形式作为工具或媒介的心理治疗模式。虽然近年来学术界已有一些研究者投入此议题(表现性艺术治疗包括音乐治疗、舞蹈治疗、戏剧治疗、视觉艺术治疗等),但国内却很少有以表现性艺术治疗作为介入方式,来针对自闭症儿童进行治疗的。 鉴于现今自闭症儿童越来越普遍的现象,本研究尝试用表现性艺术治疗作为介入方式对自闭症儿童进行治疗,以厦门某自闭症儿童教育中心的六名自闭症儿童为研究对象,应用表现性艺术治疗,以促进自闭症儿童康复作用。本文的研究内容主要包括以下几个方面 ...
刘凤琴
core  

Application Value of Variable Exposure Conditions in One-stop Cerebral Computed Tomography Imaging [PDF]

open access: yes
Objective: To compare the imaging quality and radiation dose under fixed and variable exposure conditions and to determine the value of variable exposure conditions in a one-stop cranial computed tomography (CT).
Fei ZHOU   +7 more
core   +1 more source

320 排动态容积CT血管造影对眼动脉起源的观察

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2013
【目的】 探讨异常起源眼动脉的320排动态容积CT血管造影表现及临床意义?【方法】 对66例患者眼动脉进行320排动态容积CT血管造影,对图像进行三维重建,观察眼动脉的起源和变异?【结果】 66例患者.共124侧眼动脉均清晰显示?起源于颈内动脉有120侧,分别起源于颈内动脉终段?床突上段?前膝段?海绵窦段和岩骨段?起源于脑膜中动脉有4侧?多平面重建?曲面重建?最大密度投影法及容积再现4种重建方法显示眼动脉起源部位的能力近似,均能较好地显示眼动脉根部与颈内动脉之间的关系?【结论 ...
doaj  

Clinical study on the myocardial reperfusion after PCI using intravenous myocardial contrast echocardiography in coronary diseases [PDF]

open access: yes, 2010
目的探讨经外周静脉进行心肌超声造影对冠状动脉介入治疗(PCI)术后心肌血流再灌注定量分析的价值。方法对15例冠心病患者分别于PCI术前及PCI术后经外周静脉注射造影剂,在对比脉冲序列成像(CPS)条件下行心肌超声造影(MCE)检查,采用自动追踪增强定量分析(ACQ)软件进行分析,得出造影剂强度A值及斜率β值以及A×β值、造影剂到达时间AT值及达峰时间TTP值。结果经外周静脉注入造影剂后能够获得清晰心肌显影,所有患者均获得较满意的左心室及心肌显影。异常灌注区域(N=60)的造影剂AT ...
刘丹丹
core  

Research Progress of Pericoronary Adipose Tissue Radiomics Based on Coronary Computed Tomography Angiography [PDF]

open access: yes
Pericoronary adipose tissue (PCAT) is a type of adipose tissue tightly wrapped in the adventitia of the coronary artery, which communicates bidirectionally with the coronary artery wall and promotes the development of coronary atherosclerosis during ...
Jianhua ZHAO, Xin YAN
core   +1 more source

64排螺旋CT对先天性主动脉缩窄诊断的临床应用价值

open access: yesZhongguo shiyan zhenduanxue, 2011
目的评价64排螺旋CT(MDCT)在主动脉缩窄临床诊断中的价值。方法 154例主动脉缩窄患者,男性107例,女性47例,年龄20天-60岁,平均3.3岁,均采用64排螺旋CT血管成像扫描和经胸心脏超声检查。结果 77例经手术证实CoA病例中,超声心动图检查55例明确诊断,5例诊断可疑,17例漏诊,准确率为77.9%(60/77),MD-CT均明确诊断,准确率为100%(77/77)。154例主动脉缩窄患者中,单纯型44例(28.6%),复杂婴儿型95例(61.7%),复杂不典型型15例(9.7 ...
王小红, 亓波
doaj  

Computed Tomography Radiomics to Preoperatively Predict Regional Lymph Node Metastasis of Resectable Adenocarcinoma of the Esophagogastric Junction [PDF]

open access: yes
Objective: To construct and validate computed tomography (CT) radiomics models to preoperatively predict regional lymph node (LN) status of resectable adenocarcinoma of the esophagogastric junction (AEG).
Hui LUO   +7 more
core   +1 more source

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