TRUST(T2 relaxation under spin tagging)技术可以在静脉侧进行磁化标记并测量成像区域内的静脉血的T2值。TRUST先用预饱和(Pre-saturation)脉冲来抑制静态组织信号,然后施加标记脉冲标记流入成像区域的血液,等待1.2s后进行成像。在采集图像之前,通过T2准备脉冲模块来调整有效...
TRUST(T2 relaxation under spin tagging)技术可以在静脉侧进行磁化标记并测量成像区域内的静脉血的T2值。TRUST先用预饱和(Pre-saturation)脉冲来抑制静态组织信号,然后施加标记脉冲标记流入成像区域的血液,等待1.2s后进行成像。在采集图像之前,通过T2准备脉冲模块来调整有效TE时间,得到不同T2加权的图像,测量得到静脉血的...
TRUST(T2 relaxation under spin tagging)技术可以在静脉侧进行磁化标记并测量成像区域内的静脉血的T2值。TRUST先用预饱和(Pre-saturation)脉冲来抑制静态组织信号,然后施加标记脉冲标记流入成像区域的血液,等待1.2s后进行成像。在采集图像之前,通过T2准备脉冲模块来调整有效TE时间,得到不同T2加权的图像,测量得到静脉血的...
基于MRI预测大血管事件引发ICH的评分系统:MACRO 虽然大部分自发性脑出血(Intracerebral hemorrhage, ICH)是由于小血管(mall vessel diseases,SVDs)引发的,但是仍然有1/7到1/10的ICH是由于大血管事件引发的。迅速的诊断对于ICH的治疗和预后预测有着重要意义,但...
静脉血氧饱和度的测量是ASL技术的另一个重要应用领域，TRUST和QUIXOTIC技术分别通过测量静脉血的T2值和在像素水平提取小静脉信号，量化静脉血氧饱和度。ASL技术面临的挑战包括标记后延迟时间或TI时间的选择、信噪比低、对运动敏感等。解决策略包括优化标记参数、使用多通道线圈、背影抑制技术、自动图像配准等。总...
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未来,研究人员计划修改种子的结构,使其能够充当可以引导穿过组织的微型切割刀;这将允许外科医生进行远程控制程序,并可能彻底改变非侵入性手术。 这项研究还得到了 Rosetrees Trust 和 John Black Charitable Foundation 的资助。 02 保留正常功能,不损害健康组织 ...
Danoob Dalili, Imperial College Healthcare NHS Trust, St Mary's Hospital, London, UKAnwar R. Padhani, Paul Strickland Scanner Centre, Mount Vernon Hospital, Northwood, Middlesex, UKPriya V. Joshi, Mount Vernon Cancer Centre and the East and North Herts NHS trust hospitals, Northwood, Middlese...